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Positive Gaussian Kernels Also Have Gaussian Minimizers
  • Language: en
  • Pages: 90

Positive Gaussian Kernels Also Have Gaussian Minimizers

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Hamiltonian Perturbation Theory for Ultra-Differentiable Functions
  • Language: en
  • Pages: 89

Hamiltonian Perturbation Theory for Ultra-Differentiable Functions

Some scales of spaces of ultra-differentiable functions are introduced, having good stability properties with respect to infinitely many derivatives and compositions. They are well-suited for solving non-linear functional equations by means of hard implicit function theorems. They comprise Gevrey functions and thus, as a limiting case, analytic functions. Using majorizing series, we manage to characterize them in terms of a real sequence M bounding the growth of derivatives. In this functional setting, we prove two fundamental results of Hamiltonian perturbation theory: the invariant torus theorem, where the invariant torus remains ultra-differentiable under the assumption that its frequency...

The Yang-Mills Heat Equation with Finite Action in Three Dimensions
  • Language: en
  • Pages: 111

The Yang-Mills Heat Equation with Finite Action in Three Dimensions

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Isoperimetric Inequalities in Unbounded Convex Bodies
  • Language: en
  • Pages: 86

Isoperimetric Inequalities in Unbounded Convex Bodies

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Non-Semisimple Extended Topological Quantum Field Theories
  • Language: en
  • Pages: 161

Non-Semisimple Extended Topological Quantum Field Theories

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The Geometry of Celestial Mechanics
  • Language: en
  • Pages: 241

The Geometry of Celestial Mechanics

A first course in celestial mechanics emphasising the variety of geometric ideas that have shaped the subject.

New Advances in Celestial Mechanics and Hamiltonian Systems
  • Language: en
  • Pages: 261

New Advances in Celestial Mechanics and Hamiltonian Systems

The aim of the IV International Symposium on Hamiltonian Systems and Celestial Mechanics, HAMSYS-2001 was to join top researchers in the area of Celestial Mechanics, Hamiltonian systems and related topics in order to communicate new results and look forward for join research projects. For PhD students, this meeting offered also the opportunity of personal contact to help themselves in their own research, to call as well and promote the attention of young researchers and graduated students from our scientific community to the above topics, which are nowadays of interest and relevance in Celestial Mechanics and Hamiltonian dynamics. A glance to the achievements in the area in the last century came as a consequence of joint discussions in the workshop sessions, new problems were presented and lines of future research were delineated. Specific discussion topics included: New periodic orbits and choreographies in the n-body problem, singularities in few body problems, central configurations, restricted three body problem, geometrical mechanics, dynamics of charged problems, area preserving maps and Arnold diffusion.

Naturality and Mapping Class Groups in Heegard Floer Homology
  • Language: en
  • Pages: 174

Naturality and Mapping Class Groups in Heegard Floer Homology

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Tunneling Estimates and Approximate Controllability for Hypoelliptic Equations
  • Language: en
  • Pages: 108