homology effects46



Urs Stammbach Homology in Group Theory Urs Stammbach Homology in Group Theory Новинка

Urs Stammbach Homology in Group Theory

5202 руб.
Книга "Homology in Group Theory".
H. Appelgate, M. Barr Seminar on Triples and Categorical Homology Theory. ETH 1966/67 H. Appelgate, M. Barr Seminar on Triples and Categorical Homology Theory. ETH 1966/67 Новинка

H. Appelgate, M. Barr Seminar on Triples and Categorical Homology Theory. ETH 1966/67

7552 руб.
Книга "Seminar on Triples and Categorical Homology Theory. ETH 1966/67".
F. R. Cohen, T. J. Lada, P. J. May The Homology of Iterated Loop Spaces F. R. Cohen, T. J. Lada, P. J. May The Homology of Iterated Loop Spaces Новинка

F. R. Cohen, T. J. Lada, P. J. May The Homology of Iterated Loop Spaces

9077 руб.
Книга "The Homology of Iterated Loop Spaces".
Peter Seibt CYCLIC HOMOLOGY OF ALGEBRAS Peter Seibt CYCLIC HOMOLOGY OF ALGEBRAS Новинка

Peter Seibt CYCLIC HOMOLOGY OF ALGEBRAS

6202 руб.
This book is purely algebraic and concentrates on cyclic homology rather than on cohomology. It attempts to single out the basic algebraic facts and techniques of the theory.The book is organized in two chapters. The first chapter deals with the intimate relation of cyclic theory to ordinary Hochschild theory. The second chapter deals with cyclic homology as a typical characteristic zero theory.
Steven R. Costenoble, Stefan Waner Equivariant Ordinary Homology and Cohomology Steven R. Costenoble, Stefan Waner Equivariant Ordinary Homology and Cohomology Новинка

Steven R. Costenoble, Stefan Waner Equivariant Ordinary Homology and Cohomology

7739 руб.
Книга "Equivariant Ordinary Homology and Cohomology".
Armand Borel Topics in the Homology Theory of Fibre Bundles. Lectures Given at the University of Chicago, 1954 Armand Borel Topics in the Homology Theory of Fibre Bundles. Lectures Given at the University of Chicago, 1954 Новинка

Armand Borel Topics in the Homology Theory of Fibre Bundles. Lectures Given at the University of Chicago, 1954

5352 руб.
Книга "Topics in the Homology Theory of Fibre Bundles. Lectures Given at the University of Chicago, 1954".
Z. Fiedorowicz, S. Priddy Homology of Classical Groups Over Finite Fields and Their Associated Infinite Loop Spaces Z. Fiedorowicz, S. Priddy Homology of Classical Groups Over Finite Fields and Their Associated Infinite Loop Spaces Новинка

Z. Fiedorowicz, S. Priddy Homology of Classical Groups Over Finite Fields and Their Associated Infinite Loop Spaces

8877 руб.
Книга "Homology of Classical Groups Over Finite Fields and Their Associated Infinite Loop Spaces".
Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research Center of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 2 Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research Center of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 2 Новинка

Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research Center of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 2

7714 руб.
Книга "Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research Center of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 2".
Günter P. Wagner Homology, Genes, and Evolutionary Innovation Günter P. Wagner Homology, Genes, and Evolutionary Innovation Новинка

Günter P. Wagner Homology, Genes, and Evolutionary Innovation

3727 руб.
Homology-a similar trait shared by different species and derived from common ancestry, such as a seal's fin and a bird's wing-is one of the most fundamental yet challenging concepts in evolutionary biology. This groundbreaking book provides the first mechanistically based theory of what homology is and how it arises in evolution.Günter Wagner, one of the preeminent researchers in the field, argues that homology, or character identity, can be explained through the historical continuity of character identity networks-that is, the gene regulatory networks that enable differential gene expression. He shows how character identity is independent of the form and function of the character itself because the same network can activate different effector genes and thus control the development of different shapes, sizes, and qualities of the character. Demonstrating how this theoretical model can provide a foundation for understanding the evolutionary origin of novel characters, Wagner applies it to the origin and evolution of specific systems, such as cell types; skin, hair, and feathers; limbs and digits; and flowers.The first major synthesis of homology to be published in decades, Homology, Genes, and Evolutionary Innovation reveals how a mechanistically based theory can serve as a unifying concept for any branch of science concerned with the structure and development of organisms, and how it can help explain major transitions in evolution and broad patterns of biological dive...
Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 3 Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 3 Новинка

Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 3

8777 руб.
Книга "Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 3".
Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research Center of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 1 Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research Center of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 1 Новинка

Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research Center of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 1

9264 руб.
Книга "Category Theory, Homology Theory and Their Applications. Proceedings of the Conference Held at the Seattle Research Center of the Battelle Memorial Institute, June 24 - July 19, 1968. Volume 1".
Ronald G. Douglas C*-Algebra Extensions and K-Homology. (AM-95), Volume 95 Ronald G. Douglas C*-Algebra Extensions and K-Homology. (AM-95), Volume 95 Новинка

Ronald G. Douglas C*-Algebra Extensions and K-Homology. (AM-95), Volume 95

6989 руб.
Recent developments in diverse areas of mathematics suggest the study of a certain class of extensions of C*-algebras. Here, Ronald Douglas uses methods from homological algebra to study this collection of extensions. He first shows that equivalence classes of the extensions of the compact metrizable space X form an abelian group Ext (X). Second, he shows that the correspondence X ⃗ Ext (X) defines a homotopy invariant covariant functor which can then be used to define a generalized homology theory. Establishing the periodicity of order two, the author shows, following Atiyah, that a concrete realization of K-homology is obtained.
Kevin Walker An Extension of Casson's Invariant. (AM-126), Volume 126 Kevin Walker An Extension of Casson's Invariant. (AM-126), Volume 126 Новинка

Kevin Walker An Extension of Casson's Invariant. (AM-126), Volume 126

7664 руб.
This book describes an invariant, l, of oriented rational homology 3-spheres which is a generalization of work of Andrew Casson in the integer homology sphere case. Let R(X) denote the space of conjugacy classes of representations of p(X) into SU(2). Let (W,W,F) be a Heegaard splitting of a rational homology sphere M. Then l(M) is declared to be an appropriately defined intersection number of R(W) and R(W) inside R(F). The definition of this intersection number is a delicate task, as the spaces involved have singularities. A formula describing how l transforms under Dehn surgery is proved. The formula involves Alexander polynomials and Dedekind sums, and can be used to give a rather elementary proof of the existence of l. It is also shown that when M is a Z-homology sphere, l(M) determines the Rochlin invariant of M.
The Homology of economic justice: an essay by an East India merchant, showing that political economy is sophistry, and landlordism usurpation and illegality The Homology of economic justice: an essay by an East India merchant, showing that political economy is sophistry, and landlordism usurpation and illegality Новинка

The Homology of economic justice: an essay by an East India merchant, showing that political economy is sophistry, and landlordism usurpation and illegality

843 руб.
Эта книга — репринт оригинального издания, созданный на основе электронной копии высокого разрешения, которую очистили и обработали вручную, сохранив структуру и орфографию оригинального издания. Редкие, забытые и малоизвестные книги, изданные с петровских времен до наших дней, вновь доступны в виде печатных книг.
Christine Lescop Global Surgery Formula for the Casson-Walker Invariant. (AM-140), Volume 140 Christine Lescop Global Surgery Formula for the Casson-Walker Invariant. (AM-140), Volume 140 Новинка

Christine Lescop Global Surgery Formula for the Casson-Walker Invariant. (AM-140), Volume 140

8614 руб.
This book presents a new result in 3-dimensional topology. It is well known that any closed oriented 3-manifold can be obtained by surgery on a framed link in S 3. In Global Surgery Formula for the Casson-Walker Invariant, a function F of framed links in S 3 is described, and it is proven that F consistently defines an invariant, lamda (l), of closed oriented 3-manifolds. l is then expressed in terms of previously known invariants of 3-manifolds. For integral homology spheres, l is the invariant introduced by Casson in 1985, which allowed him to solve old and famous questions in 3-dimensional topology. l becomes simpler as the first Betti number increases. As an explicit function of Alexander polynomials and surgery coefficients of framed links, the function F extends in a natural way to framed links in rational homology spheres. It is proven that F describes the variation of l under any surgery starting from a rational homology sphere. Thus F yields a global surgery formula for the Casson invariant.
Frederick Tilney The morphology of the diencephalic floor; a contribution to the study of craniate homology Frederick Tilney The morphology of the diencephalic floor; a contribution to the study of craniate homology Новинка

Frederick Tilney The morphology of the diencephalic floor; a contribution to the study of craniate homology

738 руб.
Эта книга — репринт оригинального издания, созданный на основе электронной копии высокого разрешения, которую очистили и обработали вручную, сохранив структуру и орфографию оригинального издания. Редкие, забытые и малоизвестные книги, изданные с петровских времен до наших дней, вновь доступны в виде печатных книг.
Selman Akbulut, John D. McCarthy Casson's Invariant for Oriented Homology Three-Spheres. An Exposition. (MN-36) Selman Akbulut, John D. McCarthy Casson's Invariant for Oriented Homology Three-Spheres. An Exposition. (MN-36) Новинка

Selman Akbulut, John D. McCarthy Casson's Invariant for Oriented Homology Three-Spheres. An Exposition. (MN-36)

3714 руб.
In the spring of 1985, A. Casson announced an interesting invariant of homology 3-spheres via constructions on representation spaces. This invariant generalizes the Rohlin invariant and gives surprising corollaries in low-dimensional topology. In the fall of that same year, Selman Akbulut and John McCarthy held a seminar on this invariant. These notes grew out of that seminar. The authors have tried to remain close to Casson's original outline and proceed by giving needed details, including an exposition of Newstead's results. They have often chosen classical concrete approaches over general methods. For example, they did not attempt to give gauge theory explanations for the results of Newstead; instead they followed his original techniques.Originally published in 1990.The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
George Lusztig Discrete Series of GLn Over a Finite Field. (AM-81), Volume 81 George Lusztig Discrete Series of GLn Over a Finite Field. (AM-81), Volume 81 Новинка

George Lusztig Discrete Series of GLn Over a Finite Field. (AM-81), Volume 81

7227 руб.
In this book Professor Lusztig solves an interesting problem by entirely new methods: specifically, the use of cohomology of buildings and related complexes.The book gives an explicit construction of one distinguished member, D(V), of the discrete series of GLn (Fq), where V is the n-dimensional F-vector space on which GLn(Fq) acts. This is a p-adic representation; more precisely D(V) is a free module of rank (q--1) (q2-1)...(qn-1-1) over the ring of Witt vectors WF of F. In Chapter 1 the author studies the homology of partially ordered sets, and proves some vanishing theorems for the homology of some partially ordered sets associated to geometric structures. Chapter 2 is a study of the representation △ of the affine group over a finite field. In Chapter 3 D(V) is defined, and its restriction to parabolic subgroups is determined. In Chapter 4 the author computes the character of D(V), and shows how to obtain other members of the discrete series by applying Galois automorphisms to D(V). Applications are in Chapter 5. As one of the main applications of his study the author gives a precise analysis of a Brauer lifting of the standard representation of GLn(Fq).
F.H. Croom Basic Concepts of Algebraic Topology F.H. Croom Basic Concepts of Algebraic Topology Новинка

F.H. Croom Basic Concepts of Algebraic Topology

7402 руб.
This text is intended as a one semester introduction to algebraic topology at the undergraduate and beginning graduate levels. Basically, it covers simplicial homology theory, the fundamental group, covering spaces, the higher homotopy groups and introductory singular homology theory. The text follows a broad historical outline and uses the proofs of the discoverers of the important theorems when this is consistent with the elementary level of the course. This method of presentation is intended to reduce the abstract nature of algebraic topology to a level that is palatable for the beginning student and to provide motivation and cohesion that are often lacking in abstact treatments. The text emphasizes the geometric approach to algebraic topology and attempts to show the importance of topological concepts by applying them to problems of geometry and analysis. The prerequisites for this course are calculus at the sophomore level, a one semester introduction to the theory of groups, a one semester introduc­ tion to point-set topology and some familiarity with vector spaces. Outlines of the prerequisite material can be found in the appendices at the end of the text. It is suggested that the reader not spend time initially working on the appendices, but rather that he read from the beginning of the text, referring to the appendices as his memory needs refreshing. The text is designed for use by college juniors of normal intelligence and does not require "mathematical maturity...
Vladimir Voevodsky, Andrei Suslin, Eric M. Friedlander Cycles, Transfers, and Motivic Homology Theories. (AM-143), Volume 143 Vladimir Voevodsky, Andrei Suslin, Eric M. Friedlander Cycles, Transfers, and Motivic Homology Theories. (AM-143), Volume 143 Новинка

Vladimir Voevodsky, Andrei Suslin, Eric M. Friedlander Cycles, Transfers, and Motivic Homology Theories. (AM-143), Volume 143

9452 руб.
The original goal that ultimately led to this volume was the construction of "motivic cohomology theory," whose existence was conjectured by A. Beilinson and S. Lichtenbaum. This is achieved in the book's fourth paper, using results of the other papers whose additional role is to contribute to our understanding of various properties of algebraic cycles. The material presented provides the foundations for the recent proof of the celebrated "Milnor Conjecture" by Vladimir Voevodsky. The theory of sheaves of relative cycles is developed in the first paper of this volume. The theory of presheaves with transfers and more specifically homotopy invariant presheaves with transfers is the main theme of the second paper. The Friedlander-Lawson moving lemma for families of algebraic cycles appears in the third paper in which a bivariant theory called bivariant cycle cohomology is constructed. The fifth and last paper in the volume gives a proof of the fact that bivariant cycle cohomology groups are canonically isomorphic (in appropriate cases) to Bloch's higher Chow groups, thereby providing a link between the authors' theory and Bloch's original approach to motivic (co-)homology.
In-Silico Analysis and Homology Modeling Proteins with Mymiv In-Silico Analysis and Homology Modeling Proteins with Mymiv Новинка

In-Silico Analysis and Homology Modeling Proteins with Mymiv

8639 руб.
The objective of homology modeling is to build a 3D model for a protein of which the structure is unknown (the target) on the basis of sequence similarity to proteins of known structure (the templates). Computational tools provide researchers to understand physic-chemical and structural properties of proteins . A large number of computational tools are available from different sources for making predictions regarding the identification and structure prediction of proteins . The major drawbacks of experimental methods that have been used to characterize the proteins of various organisms are the time frame involved, high cost and the fact that these methods are not amenable to high throughput techniques. In silico approaches provide a viable solution to these problems. The amino acids sequence provides most of the information required for determining and characterizing the molecule's function, physical and chemical properties. Computationally based characterization of the features of the proteins found or predicted in completely sequenced proteomes is an important task in the search for knowledge of protein functions.
Samuel Eilenberg, Norman Steenrod Foundations of Algebraic Topology Samuel Eilenberg, Norman Steenrod Foundations of Algebraic Topology Новинка

Samuel Eilenberg, Norman Steenrod Foundations of Algebraic Topology

6327 руб.
The need for an axiomatic treatment of homology and cohomology theory has long been felt by topologists. Professors Eilenberg and Steenrod present here for the first time an axiomatization of the complete transition from topology to algebra.Originally published in 1952.The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
George E. Cooke, Ross L. Finney Homology of Cell Complexes George E. Cooke, Ross L. Finney Homology of Cell Complexes Новинка

George E. Cooke, Ross L. Finney Homology of Cell Complexes

5077 руб.
Originally published in volume 4 of the Princeton University Press Mathematical Notes series. Based on lecture notes by Norman E. Steenrod.Originally published in 1967.The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Wilhelm Stoll Invariant Forms on Grassmann Manifolds. (AM-89), Volume 89 Wilhelm Stoll Invariant Forms on Grassmann Manifolds. (AM-89), Volume 89 Новинка

Wilhelm Stoll Invariant Forms on Grassmann Manifolds. (AM-89), Volume 89

7202 руб.
This work offers a contribution in the geometric form of the theory of several complex variables. Since complex Grassmann manifolds serve as classifying spaces of complex vector bundles, the cohomology structure of a complex Grassmann manifold is of importance for the construction of Chern classes of complex vector bundles. The cohomology ring of a Grassmannian is therefore of interest in topology, differential geometry, algebraic geometry, and complex analysis. Wilhelm Stoll treats certain aspects of the complex analysis point of view.This work originated with questions in value distribution theory. Here analytic sets and differential forms rather than the corresponding homology and cohomology classes are considered. On the Grassmann manifold, the cohomology ring is isomorphic to the ring of differential forms invariant under the unitary group, and each cohomology class is determined by a family of analytic sets.
Solomon Lefschetz Introduction to Topology Solomon Lefschetz Introduction to Topology Новинка

Solomon Lefschetz Introduction to Topology

4177 руб.
In this book, which may be used as a self-contained text for a beginning course, Professor Lefschetz aims to give the reader a concrete working knowledge of the central concepts of modern combinatorial topology: complexes, homology groups, mappings in spheres, homotopy, transformations and their fixed points, manifolds and duality theorems. Each chapter ends with a group of problems.Originally published in 1949.The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
The Homology of Economic Justice. an Essay by an East India Merchant, Showing That Political Economy Is Sophistry, and Landlordism Usurpation and Illegality The Homology of Economic Justice. an Essay by an East India Merchant, Showing That Political Economy Is Sophistry, and Landlordism Usurpation and Illegality Новинка

The Homology of Economic Justice. an Essay by an East India Merchant, Showing That Political Economy Is Sophistry, and Landlordism Usurpation and Illegality

2702 руб.
Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.
John W. Morgan The Seiberg-Witten Equations and Applications to the Topology of Smooth Four-Manifolds. (MN-44), Volume 44 John W. Morgan The Seiberg-Witten Equations and Applications to the Topology of Smooth Four-Manifolds. (MN-44), Volume 44 Новинка

John W. Morgan The Seiberg-Witten Equations and Applications to the Topology of Smooth Four-Manifolds. (MN-44), Volume 44

7189 руб.
The recent introduction of the Seiberg-Witten invariants of smooth four-manifolds has revolutionized the study of those manifolds. The invariants are gauge-theoretic in nature and are close cousins of the much-studied SU(2)-invariants defined over fifteen years ago by Donaldson. On a practical level, the new invariants have proved to be more powerful and have led to a vast generalization of earlier results. This book is an introduction to the Seiberg-Witten invariants. The work begins with a review of the classical material on Spin c structures and their associated Dirac operators. Next comes a discussion of the Seiberg-Witten equations, which is set in the context of nonlinear elliptic operators on an appropriate infinite dimensional space of configurations. It is demonstrated that the space of solutions to these equations, called the Seiberg-Witten moduli space, is finite dimensional, and its dimension is then computed. In contrast to the SU(2)-case, the Seiberg-Witten moduli spaces are shown to be compact. The Seiberg-Witten invariant is then essentially the homology class in the space of configurations represented by the Seiberg-Witten moduli space. The last chapter gives a flavor for the applications of these new invariants by computing the invariants for most Kahler surfaces and then deriving some basic toological consequences for these surfaces.
Prem Chand Cytoarchitecture and neuronal types in forebrain of strawberry finch Prem Chand Cytoarchitecture and neuronal types in forebrain of strawberry finch Новинка

Prem Chand Cytoarchitecture and neuronal types in forebrain of strawberry finch

5707 руб.
The present book work tried to classify various types of neurons in the telencephalon of strawberry finch, Estrilda amandava. This study shows the various types of neurons, their morphological characteristics (Soma diameter, spine density, dendritic field, axonal length) and projections in the several fields of forebrain and deduced homology of various regions with reptilian and mammalian cerebral cortex. The findings show that the medial arm of the V-shaped layer of hippocampus corresponds to Ammon’s horn and the parahippocampus to the subiculum of mammals. The hippocampal complex of birds is comparable to the reptilian dorsomedial cortex. The corticoid complex of birds is homologous with reptilian lateral cortex and mammalian entorhinal cortex. The visual wulst of birds is homologous with reptilian dorsal cortex and mammalian visual cortex. The present study of neuronal classes of several regions has given important base for the further studies as Estrilda amandava seems to be a suitable avian model for studying the experimental tracing, immunocytochemistry, electrophysiology, lesion and regeneration experiments to identify the path & complexity of neuronal regeneration.
Ward Wheeler C. Systematics. A Course of Lectures Ward Wheeler C. Systematics. A Course of Lectures Новинка

Ward Wheeler C. Systematics. A Course of Lectures

13063.66 руб.
Systematics: A Course of Lectures is designed for use in an advanced undergraduate or introductory graduate level course in systematics and is meant to present core systematic concepts and literature. The book covers topics such as the history of systematic thinking and fundamental concepts in the field including species concepts, homology, and hypothesis testing. Analytical methods are covered in detail with chapters devoted to sequence alignment, optimality criteria, and methods such as distance, parsimony, maximum likelihood and Bayesian approaches. Trees and tree searching, consensus and super-tree methods, support measures, and other relevant topics are each covered in their own sections. The work is not a bleeding-edge statement or in-depth review of the entirety of systematics, but covers the basics as broadly as could be handled in a one semester course. Most chapters are designed to be a single 1.5 hour class, with those on parsimony, likelihood, posterior probability, and tree searching two classes (2 x 1.5 hours).
William Fulton Introduction to Toric Varieties. (AM-131), Volume 131 William Fulton Introduction to Toric Varieties. (AM-131), Volume 131 Новинка

William Fulton Introduction to Toric Varieties. (AM-131), Volume 131

8889 руб.
Toric varieties are algebraic varieties arising from elementary geometric and combinatorial objects such as convex polytopes in Euclidean space with vertices on lattice points. Since many algebraic geometry notions such as singularities, birational maps, cycles, homology, intersection theory, and Riemann-Roch translate into simple facts about polytopes, toric varieties provide a marvelous source of examples in algebraic geometry. In the other direction, general facts from algebraic geometry have implications for such polytopes, such as to the problem of the number of lattice points they contain. In spite of the fact that toric varieties are very special in the spectrum of all algebraic varieties, they provide a remarkably useful testing ground for general theories. The aim of this mini-course is to develop the foundations of the study of toric varieties, with examples, and describe some of these relations and applications. The text concludes with Stanley's theorem characterizing the numbers of simplicies in each dimension in a convex simplicial polytope. Although some general theorems are quoted without proof, the concrete interpretations via simplicial geometry should make the text accessible to beginners in algebraic geometry.
Fabio Ferrari Ruffino Topics on Topology and Superstring Theory Fabio Ferrari Ruffino Topics on Topology and Superstring Theory Новинка

Fabio Ferrari Ruffino Topics on Topology and Superstring Theory

6359 руб.
In this book we discuss some topics about topology and superstring backgrounds with D-branes. We start with a mathematical review about generalized homology and cohomology theories and the Atiyah-Hirzebruch spectral sequence, in order to provide an explicit link between such a spectral sequence and the Gysin map. Then we review the basic facts about line bundles and gerbes with connection. In the second part of the book we apply the previous material to study the geometry of type II superstring backgrounds. We first present the cohomological discussion about D-brane charges in analogy with classical electromagnetism, then we use the geometry of gerbes to discuss the nature of the A-field and the B-field as follows from the Freed-Witten anomaly, finally we discuss the K-theoretical approaches to classify D-brane charges. In the last part we discuss some topics about spinors and pinors, with particular attention to non-orientable manifolds.
John Milbank Beyond Secular Order. The Representation of Being and the Representation of the People John Milbank Beyond Secular Order. The Representation of Being and the Representation of the People Новинка

John Milbank Beyond Secular Order. The Representation of Being and the Representation of the People

7755.32 руб.
Beyond Secular Order is the first of a two-volume work that expands upon renowned theologian John Milbank’s innovative attempt to understand both theology and modern thought begun in his previously published classic text Theology and Social Theory. Continues Milbank’s innovative attempt to understand both theology and modern thought begun in Theology and Social Theory – considered a classic work in the development of systematic theology Authored by one of the world’s most influential and highly regarded contemporary theologians Draws on a sweep of ideas and thinkers to argue that modern secularism is a form of Christian heresy that developed from the Middle Ages and can only be overcome by a renewed account of Christendom Shows how this heresy can be transformed into a richer blend of religion, modernity and politics Reveals how there is a fundamental homology between modern ideas about ontology and knowledge and modern ideas about political action, expressed in both theory and practice
Stevan Pecic Aporphines - MDMA Antagonists and AChE Inhibitors Stevan Pecic Aporphines - MDMA Antagonists and AChE Inhibitors Новинка

Stevan Pecic Aporphines - MDMA Antagonists and AChE Inhibitors

4822 руб.
MDMA is a psychoactive drug which is thought to act via stimulation of secretion as well as inhibition of re-uptake of large amounts of serotonin, noradrenaline and dopamine in the brain. MDMA also acts directly on a number of receptors, including 5-HT2A receptors. There is considerable evidence that 5-HT2A antagonists can modulate behavioral and physiological effects of MDMA in animals. Nantenine an aporphine alkaloid ex Nandina domestica has been reported to block and reverse a range of behavioral and physiological effects of MDMA in mice. In this book is shown synthesis and design of a library of novel analogs in order to investigate the structural requirements for nantenine’s 5-HT2A activity. To elucidate possible binding modes of these compounds and to determine the correlation with our binding data, we built a 5-HT2A homology model based on a bovine rhodopsin template and then performed docking/scoring experiments. In the second part of the book, nantenine as well as a number of flexible analogs were evaluated for acetylcholinesterase (AChE) inhibitory activity in a microplate spectrophotometric assays based on Ellman’s method.
R. H. Dyer, D. E. Edmunds From Real to Complex Analysis R. H. Dyer, D. E. Edmunds From Real to Complex Analysis Новинка

R. H. Dyer, D. E. Edmunds From Real to Complex Analysis

5627 руб.
The purpose of this book is to provide an integrated course in real and complex analysis for those who have already taken a preliminary course in real analysis. It particularly emphasises the interplay between analysis and topology.Beginning with the theory of the Riemann integral (and its improper extension) on the real line, the fundamentals of metric spaces are then developed, with special attention being paid to connectedness, simple connectedness and various forms of homotopy. The final chapter develops the theory of complex analysis, in which emphasis is placed on the argument, the winding number, and a general (homology) version of Cauchy's theorem which is proved using the approach due to Dixon.Special features are the inclusion of proofs of Montel's theorem, the Riemann mapping theorem and the Jordan curve theorem that arise naturally from the earlier development. Extensive exercises are included in each of the chapters, detailed solutions of the majority of which are given at the end. From Real to Complex Analysis is aimed at senior undergraduates and beginning graduate students in mathematics. It offers a sound grounding in analysis; in particular, it gives a solid base in complex analysis from which progress to more advanced topics may be made.
Samarjeet Borah and Krishna Bikram Shah Protein Sequence Analysis: A Review with a new Approach Samarjeet Borah and Krishna Bikram Shah Protein Sequence Analysis: A Review with a new Approach Новинка

Samarjeet Borah and Krishna Bikram Shah Protein Sequence Analysis: A Review with a new Approach

3944 руб.
In Sequence Analysis, two sequences are compared to identify similarities and differences between them. Generally, a measure of how similar they are is also desirable. A typical approach to solve this problem is to find a good and reasonable alignment between the two sequences. Then, given an appropriate scoring scheme, their similarity can be computed. This study describes the concepts, tools and selected algorithms being used for sequence analysis and recent works which have been done in the field of Sequence Analysis. Alignment of protein sequences is an elementary step in the analysis of biological data. It has traditionally been applied to analyzing protein families for conserved motifs, phylogeny, structural properties, and to improve sensitivity in homology searching. In this research work, a new method, coined as Global Alignment Tool (GLAT) is developed to improve both the accuracy and speed of sequence alignment. We compared the accuracy of this method to other popular methods.
Chirag Mandavia Characterization of the Angiotensin receptor AT2 by various studies Chirag Mandavia Characterization of the Angiotensin receptor AT2 by various studies Новинка

Chirag Mandavia Characterization of the Angiotensin receptor AT2 by various studies

3944 руб.
In order to study AT2-mediated signal transduction mechanisms, two main approaches were used: (1) the ligand-binding properties of mutant AT2 receptors were characterized in comparison to wild-type after generation of a point mutation using site-directed mutagenesis, and (2) interacting protein partners were analyzed using yeast library screening, co-immunoprecipitation and Western Blot studies. We found that the ability of Angiotensin II (Ang II) receptor type AT2 Phe308Ala residue mutant in the 7th TMD to bind peptidic ligands was greatly reduced, using Xenopus oocytes expression system. This residue occupies a position in the AT2 analogous to the Tyr292 in the AT1 essential for agonistic activation of that receptor. Screening of a 17-day mouse embryo cDNA library with the Angiotensin II receptor AT2 as the bait in yeast two-hybrid assay identified sodium-hydrogen exchanger NHE6 as the binding partner with 98% sequence homology. Further studies revealed that when human cell-line MCF-7 was transfected with the AT2, the AT2 co-immunoprecipitated with the NHE6 in the presence of Ang II, implying that Ang II-mediated activation is needed for the interaction between AT2 and NHE6.
Eric M. Friedlander Etale Homotopy of Simplicial Schemes. (AM-104), Volume 104 Eric M. Friedlander Etale Homotopy of Simplicial Schemes. (AM-104), Volume 104 Новинка

Eric M. Friedlander Etale Homotopy of Simplicial Schemes. (AM-104), Volume 104

8577 руб.
This book presents a coherent account of the current status of etale homotopy theory, a topological theory introduced into abstract algebraic geometry by M. Artin and B. Mazur. Eric M. Friedlander presents many of his own applications of this theory to algebraic topology, finite Chevalley groups, and algebraic geometry. Of particular interest are the discussions concerning the Adams Conjecture, K-theories of finite fields, and Poincare duality. Because these applications have required repeated modifications of the original formulation of etale homotopy theory, the author provides a new treatment of the foundations which is more general and more precise than previous versions.One purpose of this book is to offer the basic techniques and results of etale homotopy theory to topologists and algebraic geometers who may then apply the theory in their own work. With a view to such future applications, the author has introduced a number of new constructions (function complexes, relative homology and cohomology, generalized cohomology) which have immediately proved applicable to algebraic K-theory.
Puvarajan Boovalingam Infectious Laryngo Tracheitis Virus In Chicken Puvarajan Boovalingam Infectious Laryngo Tracheitis Virus In Chicken Новинка

Puvarajan Boovalingam Infectious Laryngo Tracheitis Virus In Chicken

5390 руб.
A study was undertaken to isolate, identify and characterize the causative agent of Infectious laryngotracheitis (ILT) in layers from field outbreaks in Namakkal area.The maximum prevalence was noticed in the age group of 10 to 20 weeks (40.47 %) followed by 20 to 30 weeks (26.19 %). The field isolates were confirmed by Agar Gel Precipitation Test and histopathology.Molecular characterization of the field ILTV isolates were carried out by amplification of ICP4 gene and Tk gene by polymerase chain reaction and produced amplicons size of 635 bp and 649 bp respectively.Restriction endonuclease analysis of ILTV field isolates were carried out for the Tk gene amplicons size of 649 bp with endonuclease enzymes viz. HaeIII, Sau 96I and NciI and two for Hae III ,Three for Sau 96I and no cleavage for NciI were observed.The sequence analysis showed that the homology of nucleotide sequences between field isolates was 99.2 - 100 per cent for ICP4 gene and 96.5 -100 per cent for the Tk gene. The protein profile of field ILTV isolates and vaccine strain were studied by SDS - PAGE which yielded 60, 85,160 and 205 kDa. A dot-ELISA technique was developed for detection of ILTV from field samples.
Lieberman Bruce S. Phylogenetics. Theory and Practice of Phylogenetic Systematics Lieberman Bruce S. Phylogenetics. Theory and Practice of Phylogenetic Systematics Новинка

Lieberman Bruce S. Phylogenetics. Theory and Practice of Phylogenetic Systematics

8786.99 руб.
The long-awaited revision of the industry standard on phylogenetics Since the publication of the first edition of this landmark volume more than twenty-five years ago, phylogenetic systematics has taken its place as the dominant paradigm of systematic biology. It has profoundly influenced the way scientists study evolution, and has seen many theoretical and technical advances as the field has continued to grow. It goes almost without saying that the next twenty-five years of phylogenetic research will prove as fascinating as the first, with many exciting developments yet to come. This new edition of Phylogenetics captures the very essence of this rapidly evolving discipline. Written for the practicing systematist and phylogeneticist, it addresses both the philosophical and technical issues of the field, as well as surveys general practices in taxonomy. Major sections of the book deal with the nature of species and higher taxa, homology and characters, trees and tree graphs, and biogeography—the purpose being to develop biologically relevant species, character, tree, and biogeographic concepts that can be applied fruitfully to phylogenetics. The book then turns its focus to phylogenetic trees, including an in-depth guide to tree-building algorithms. Additional coverage includes: Parsimony and parsimony analysis Parametric phylogenetics including maximum likelihood and Bayesian approaches Phylogenetic classification Critiques of evolutionary taxonomy, phenetics, and transformed cladistics Specimen selection, field collecting, and curating Systematic publication and the rules of nomenclature Providing a thorough synthesis of the field, this important update to Phylogenetics is essential for students and researchers in the areas of evolutionary biology, molecular evolution, genetics and evolutionary genetics, paleontology, physical anthropology, and zoology.
Gian-Paolo Biasin Montale, Debussy, and Modernism Gian-Paolo Biasin Montale, Debussy, and Modernism Новинка

Gian-Paolo Biasin Montale, Debussy, and Modernism

3502 руб.
Integrating the study of both music and art into an exploration of the early poetry of Eugenio Montale (1896-1982), this book situates Italy's premier poet of the twentieth century within the Modernist movement. Gian-Paolo Biasin finds in Montale's poetry broad resonances, reverberations, and comparisons that involve it in the European culture of its time and that invite the reading of poetry, music, and painting as texts in a cultural system. This interdisciplinary approach expands our appreciation of Montale's work in a way not possible with literary analysis alone.Biasin's study first shows the structural homology between some of Debussy's preludes for piano and certain poems in Montale's Ossi di seppia, emphasizing the rhythmic qualities of the compositions. This formal analysis leads to an understanding of the respective texts' thematic, symbolic, and cultural meaning--specifically, antiheroism as a choice of life. Similar methodology is then used to reveal the relationship between the poetry of Montale and Giorgio Morandi's etchings and between Montale's poetic persona, Arsenio, and the novelistic characters of Svevo and Pirandello. Each of these comparisons brings to light a shared image, that of the clown (or antihero) as a mocking self-portrait of the modern artist.Originally published in 1989.The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the disti...

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The long-awaited revision of the industry standard on phylogenetics Since the publication of the first edition of this landmark volume more than twenty-five years ago, phylogenetic systematics has taken its place as the dominant paradigm of systematic biology. It has profoundly influenced the way scientists study evolution, and has seen many theoretical and technical advances as the field has continued to grow. It goes almost without saying that the next twenty-five years of phylogenetic research will prove as fascinating as the first, with many exciting developments yet to come. This new edition of Phylogenetics captures the very essence of this rapidly evolving discipline. Written for the practicing systematist and phylogeneticist, it addresses both the philosophical and technical issues of the field, as well as surveys general practices in taxonomy. Major sections of the book deal with the nature of species and higher taxa, homology and characters, trees and tree graphs, and biogeography—the purpose being to develop biologically relevant species, character, tree, and biogeographic concepts that can be applied fruitfully to phylogenetics. The book then turns its focus to phylogenetic trees, including an in-depth guide to tree-building algorithms. Additional coverage includes: Parsimony and parsimony analysis Parametric phylogenetics including maximum likelihood and Bayesian approaches Phylogenetic classification Critiques of evolutionary taxonomy, phenetics, and transformed cladistics Specimen selection, field collecting, and curating Systematic publication and the rules of nomenclature Providing a thorough synthesis of the field, this important update to Phylogenetics is essential for students and researchers in the areas of evolutionary biology, molecular evolution, genetics and evolutionary genetics, paleontology, physical anthropology, and zoology.
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