Andreescu, T., American Mathematics Competition University of Nebraska, Lincoln, USA
/ Feng, Z., Phillips Exeter Academy, USA

102 Combinatorial Problems
From the Training of the USA IMO Team

2002. Approx. 144 pages. Softcover
ISBN 3-7643-4317-6
English

Due in November 2002

Combinatorial Problems consists of 102 carefully selected problems that have been used in the training and testing of the USA International Mathematical Olympiad (IMO) team.

Key features:
Provides in-depth enrichment in the important areas of combinatorics by reorganizing and enhancing problem-solving tactics and strategies
Topics include: combinatorial arguments and identities, generating functions, graph theory, recursive relations, sums and products, probability, number theory, polynomials, theory of equations, complex numbers in geometry, algorithmic proofs, combinatorial and advanced geometry, functional equations and classical inequalities
The book is systematically organized, gradually building combinatorial skills and techniques and broadening the student's view of mathematics. Aside from its practical use in training teachers and students engaged in mathematical competitions, it is a source of enrichment that is bound to stimulate interest in a variety of mathematical areas that are tangential to combinatorics.

Table of Contents
Preface
Introduction
Abbreviations and Notation
Introductory Problems
Advanced Problems
Solutions to Introductory Problems
Solutions to Advanced Problems
Glossary
Further Reading


Kajitani, K., University of Tsukuba, Ibaraki, Japan / Vaillant, J., MATHS-Universite Paris VI, France

Partial Differential Equations and Mathematical Physics
In Memory of Jean Leray

Progress in Nonlinear Differential Equations, vol.52
2002. Approx. 264 pages. Hardcover
ISBN 3-7643-4309-5
English

Due in December 2002

A wide range of topics in partial differential equations, complex analysis, and mathematical physics are presented to commemorate the memory of the great French mathematician Jean Leray.

Most articles contain complete proofs and excellent bibliographies. For graduate students and mathematical physicists as well as mathematicians in analysis and PDEs.

The 17 invited research articles in this volume, all written by leading experts in their respective fields, are dedicated to the great French mathematician Jean Leray. A wide range of topics with significant new results---detailed proofs - are presented in the areas of partial differential equations, complex analysis, and mathematical physics.

Key subjects are treated from the mathematical physics viewpoint:

nonlinear stability of an expanding universe
the compressible Euler equation
spin groups and the Leray-Maslov index
Linked to the Cauchy problem: an intermediate case between effective hyperbolicity and the Levi condition, global Cauchy--Kowalewski theorem in some Gevrey classes, the analytic continuation of the solution, necessary conditions for hyperbolic systems, well posedness in the Gevrey class, uniformly diagonalizable systems and reduced dimension, and monodromy of ramified Cauchy problem.

Additional articles examine results on:

Local solvability for a system of partial differential operators,
The hypoellipticity of second order operators
Differential forms and Hodge theory on analytic spaces
Subelliptic operators and subriemannian geometry.
Contributors: R. Beals, Y. Choquet-Bruhat, F. Colombini, M. De Gosson, B. Gaveau, D. Gourdin, P. Greiner, Y. Hamada, K. Mizohata, T. Nishitani, T. Okaji, S. Ouchi, Y. Ohya, S. Spagnolo, J. Vaillant, C. Wagschal, S. Wakabayashi

The book is suitable as a reference text for graduate students and active researchers.

Table of Contents
Exact Solutions for Some Linear PDEs
Nonlinear Stability of an Expanding Universe with S^1 Isometry Group
On the Cauchy Problem for a Weakly Hyperbolic Operator: an Intermediate Case Between Effective Hyperbolicity and Levi Condition
Spin Groups and the Leray-Maslov Index
Differential Forms and Hodge Theory on Analytic Spaces
A Global Cauchy--Kowalewski Theorem in Some Gevrey Classes
Subelliptic Operators and Subriemannian Geometry
On the Analytic Continuation of the Solution of the Cauchy Problem
On the Compressible Euler Equation
Necessary Conditions for Hyperbolic Systems
Absence of Eigenvalues of Elliptic Systems of the First Order
The Behaviors of Singular Solutions of PDEs in Some Class in the Complex Domain
Hyperbolic Cauchy Problem Well Posed in the Class of Gevrey
Strong Gevrey Solvability for a System of Linear PDEs
Systemes Uniformement Diagonalisables, Dimension Reduite et Systemes Presymetriques
Monodromy of Ramified Cauchy Problem
On Hypoellipticity of the Operator exp [-|x_1|^{-\sigma }]D_1^2+x_1^4 D_2^2+1


Chris Doran, Anthony Lasenby

Geometric Algebra for Physicists

Publication is planned for April 2003 | Hardback | 580 pages 76 line diagrams 6 half-tones 12 tables 135 exercises | ISBN: 0-521-48022-1

Not yet published - available from April 2003 | Stock level updated: 22 Oct 08:58BST

Geometric algebra is a powerful mathematical language with applications across a range of subjects in physics and engineering. This book is a complete guide to the current state of the subject with early chapters providing a self-contained introduction to geometric algebra. Topics covered include new techniques for handling rotations in arbitrary dimensions, and the links between rotations, bivectors and the structure of the Lie groups. Following chapters extend the concept of a complex analytic function theory to arbitrary dimensions, with applications in quantum theory and electromagnetism. Later chapters cover advanced topics such as non-Euclidean geometry, quantum entanglement, and gauge theories. Applications such as black holes and cosmic strings are also explored. Suitable for researchers working in the fields of relativity and quantum theory, it can also be used as a graduate text for courses on the physical applications of geometric algebra.
Contents
1. Introduction; 2. Geometric algebra in two and three dimensions; 3. Classical mechanics; 4. Foundations of geometric algebra; 5. Relativity and spacetime; 6. Geometric calculus; 7. Classical electrodynamics; 8. Quantum theory and spinors; 9. Multiparticle states and quantum entanglement; 10. Geometry; 11. Further topics in calculus and group theory; 12. Lagrangian and Hamiltonian techniques; 13. Symmetry and gauge theory; 14. Gravitation.


Les Pook

Flexagons Inside Out

Publication is planned for August 2003 | Paperback (Hardback) | 200 pages 200 line diagrams | ISBN: 0-521-52574-8

available from August 2003

Flexagons are hinged polygons that have the intriguing property of displaying different pairs of faces when they are flexed. Workable paper models of flexagons are easy to make and entertaining to manipulate. Flexagons have a surprisingly complex mathematical structure and just how a flexagon works is not obvious on casual examination of a paper model. Flexagons may be appreciated at three different levels. Firstly as toys or puzzles, secondly as a recreational mathematics topic and finally as the subject of serious mathematical study. This book is written for anyone interested in puzzles or recreational maths. No previous knowledge of flexagons is assumed, and the only pre-requisite is some knowledge of elementary geometry. An attractive feature of the book is a collection of nets, with assembly instructions, for a wide range of paper models of flexagons. These are printed full size and laid out so they can be photocopied.

Contents
1. Making and flexing flexagons; 2. Early history of flexagons; 3. Geometry of flexagons; 4. Hexaflexagons; 5. Hexaflexagon variations; 6. Square flexagons; 7. Introduction to convex polygon flexagons; 8. Typical convex polygon flexagons; 9. Ring flexagons; 10. Distorted polygon flexagons; 11. Flexahedra.


I. Chajda, G. Eigenthaler, H. Langer

Congruence Classes in Universal Algebra

Soft cover, ISBN 3-88538-226-1, in production

Research and Exposition in Mathematics, Volume 26

Congruence relations play an important role when investigating universal algebras. On the one hand, the structure of the congruence lattice of a given algebra reveals much information on the underlying algebra. On the other hand, via congruence relations quotient algebras can be formed which may have "nicer" properties than the original algebras. Moreover, in many cases congruences are determined by some of their classes. For instance in the case of groups, rings and Boolean algebras, congruences are determined by each single one of their classes. The aim of the present book is to present the most important results concerning congruence classes, dependences between them as well as connections to subalgebras. Thus the reader is informed on the developments in this field during the last decades.


I. Bajo, E. Sanmartin (eds.)

Recent Advances in Lie Theory

406 p., soft cover, ISBN 3-88538-225-3, 2002

Research and Exposition in Mathematics, Volume 25

Lie Theory is known to play a crucial role in many fields of Mathematics and Physics. Apart from their obvious geometric and algebraic importance, Lie groups and Lie algebras have turned out to be of fundamental significance in Differential Equations, Quantum Mechanics, Algebraic Geometry, Topology and the Theory of Special Functions. The aim of this book is to provide the reader with a general view of recent research directions, represented in 23 articles, in most of these topics.

Contents.

Foreword, v--viii
L. Aussenhofer: A Survey on Nuclear Groups 1--30
W. Banaszczyk: Theorems of Bochner and Levy for Nuclear Groups 31--44
O. Blasco: Bilinear Maps and Convolutions 45--56
W. W. Comfort, S. Hernandez, D. Remus, F. J. Trigos-Arrieta: Some Open Questions on Topological Groups 57--76
E. Corbacho Rosas, D. Dikranjan, V. Tarieladze: Absorption Adjunctable Semigroups 77--104
D. Dikranjan: The Lattice of Group Topologies and Compact Representations 105--126
X. Dominguez, V. Tarieladze: GP-Nuclear Groups 127--162
H. Glockner, K.-H. Neeb: Minimally Almost Periodic Abelian Groups and Commutative W*-Algebras 163--186
P. Matysiak: Non-Reflexive Closed Connected Subgroups of Banach Spaces 187--196
M. G. Megrelishvili: Operator Topologies and Reflexive Representability 197--208
M. G. Megrelishvili, V. G. Pestov, V. V. Uspenskij: A Note on the Precompactness of Weakly Almost Periodic Groups 209--216
R. Steglinski: Quotient Groups of Normed Spaces for which the Bochner Theorem Fails Completely 217--225
W. Wojtynski: An Introduction to String Lie Theory 227--238
M. Wustner: A Short Survey on the Surjectivity of Exponential Lie Groups 239--250