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Study of the Critical Points at Infinity Arising from the Failure of the Palais-Smale Condition for n-Body Type Problems
  • Language: en
  • Pages: 127

Study of the Critical Points at Infinity Arising from the Failure of the Palais-Smale Condition for n-Body Type Problems

In this work, the author examines the following: When the Hamiltonian system $m i \ddot{q} i + (\partial V/\partial q i) (t,q) =0$ with periodicity condition $q(t+T) = q(t),\; \forall t \in \germ R$ (where $q {i} \in \germ R{\ell}$, $\ell \ge 3$, $1 \le i \le n$, $q = (q {1},...,q {n})$ and $V = \sum V {ij}(t,q {i}-q {j})$ with $V {ij}(t,\xi)$ $T$-periodic in $t$ and singular in $\xi$ at $\xi = 0$) is posed as a variational problem, the corresponding functional does not satisfy the Palais-Smale condition and this leads to the notion of critical points at infinity. This volume is a study of these critical points at infinity and of the topology of their stable and unstable manifolds. The potential considered here satisfies the strong force hypothesis which eliminates collision orbits. The details are given for 4-body type problems then generalized to n-body type problems.

Theoretical Aspects of Computing - ICTAC 2004
  • Language: en
  • Pages: 574

Theoretical Aspects of Computing - ICTAC 2004

  • Type: Book
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  • Published: 2005-02-22
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  • Publisher: Springer

This book constitutes the thoroughly refereed postproceedings of the First International Colloquium on Theoretical Aspects of Computing, ICTAC 2004. The 34 revised full papers presented together with 4 invited contributions were carefully selected from 111 submissions during two rounds of reviewing and improvement. The papers are organized in topical sections on concurrent and distributed systems, model integration and theory unification, program reasoning and testing, verification, theories of programming and programming languages, real-time and co-design, and automata theory and logics.

A Computation of $\delta ^1_5$
  • Language: en
  • Pages: 109

A Computation of $\delta ^1_5$

This book is intended for graduate students and research mathematicians working in logic and foundations

Morava $K$-Theories and Localisation
  • Language: en
  • Pages: 114

Morava $K$-Theories and Localisation

This book is intended for graduate students and research mathematicians working in group theory and generalizations.

Partial Differential Equations arising from Physics and Geometry
  • Language: en
  • Pages: 471

Partial Differential Equations arising from Physics and Geometry

Presents the state of the art in PDEs, including the latest research and short courses accessible to graduate students.

Dynamical Zeta Functions, Nielsen Theory and Reidemeister Torsion
  • Language: en
  • Pages: 165

Dynamical Zeta Functions, Nielsen Theory and Reidemeister Torsion

In the paper we study new dynamical zeta functions connected with Nielsen fixed point theory. The study of dynamical zeta functions is part of the theory of dynamical systems, but it is also intimately related to algebraic geometry, number theory, topology and statistical mechanics. The paper consists of four parts. Part I presents a brief account of the Nielsen fixed point theory. Part II deals with dynamical zeta functions connected with Nielsen fixed point theory. Part III is concerned with analog of Dold congruences for the Reidemeister and Nielsen numbers. In Part IV we explain how dynamical zeta functions give rise to the Reidemeister torsion, a very important topological invariant which has useful applications in knots theory,quantum field theory and dynamical systems.

Limit Theorems for Functionals of Ergodic Markov Chains with General State Space
  • Language: en
  • Pages: 225

Limit Theorems for Functionals of Ergodic Markov Chains with General State Space

This book is intended for graduate students and research mathematicians working probability theory and statistics.

Treelike Structures Arising from Continua and Convergence Groups
  • Language: en
  • Pages: 101

Treelike Structures Arising from Continua and Convergence Groups

This book is intended for graduate students and research mathematicians working in group theory and generalizations

Special Groups
  • Language: en
  • Pages: 271

Special Groups

This monograph presents a systematic study of Special Groups, a first-order universal-existential axiomatization of the theory of quadratic forms, which comprises the usual theory over fields of characteristic different from 2, and is dual to the theory of abstract order spaces. The heart of our theory begins in Chapter 4 with the result that Boolean algebras have a natural structure of reduced special group. More deeply, every such group is canonically and functorially embedded in a certain Boolean algebra, its Boolean hull. This hull contains a wealth of information about the structure of the given special group, and much of the later work consists in unveiling it. Thus, in Chapter 7 we in...

Rational Curves on Quasi-Projective Surfaces
  • Language: en
  • Pages: 169

Rational Curves on Quasi-Projective Surfaces

This book is intended for graduate students and research mathematicians working in algebraic geometry