Separatrix Surfaces and Invariant Manifolds of a Class of Integrable Hamiltonian Systems and Their Perturbations

Separatrix Surfaces and Invariant Manifolds of a Class of Integrable Hamiltonian Systems and Their Perturbations PDF Author: Jaume Llibre
Publisher: American Mathematical Soc.
ISBN: 082182581X
Category : Mathematics
Languages : en
Pages : 206

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Book Description
This work presents a study of the foliations of the energy levels of a class of integrable Hamiltonian systems by the sets of constant energy and angular momentum. This includes a classification of the topological bifurcations and a dynamical characterization of the criticalleaves (separatrix surfaces) of the foliation. Llibre and Nunes then consider Hamiltonain perturbations of this class of integrable Hamiltonians and give conditions for the persistence of the separatrix structure of the foliations and for the existence of transversal ejection-collision orbits of the perturbed system. Finally, they consider a class of non-Hamiltonian perturbations of a family of integrable systems of the type studied earlier and prove the persistence of "almost all" the tori and cylinders that foliate the energy levels of the unperturbed system as a consequence of KAM theory.

Separatrix Surfaces and Invariant Manifolds of a Class of Integrable Hamiltonian Systems and Their Perturbations

Separatrix Surfaces and Invariant Manifolds of a Class of Integrable Hamiltonian Systems and Their Perturbations PDF Author: Jaume Llibre
Publisher: American Mathematical Soc.
ISBN: 082182581X
Category : Mathematics
Languages : en
Pages : 206

Get Book Here

Book Description
This work presents a study of the foliations of the energy levels of a class of integrable Hamiltonian systems by the sets of constant energy and angular momentum. This includes a classification of the topological bifurcations and a dynamical characterization of the criticalleaves (separatrix surfaces) of the foliation. Llibre and Nunes then consider Hamiltonain perturbations of this class of integrable Hamiltonians and give conditions for the persistence of the separatrix structure of the foliations and for the existence of transversal ejection-collision orbits of the perturbed system. Finally, they consider a class of non-Hamiltonian perturbations of a family of integrable systems of the type studied earlier and prove the persistence of "almost all" the tori and cylinders that foliate the energy levels of the unperturbed system as a consequence of KAM theory.

Random Perturbations of Hamiltonian Systems

Random Perturbations of Hamiltonian Systems PDF Author: Mark Iosifovich Freĭdlin
Publisher: American Mathematical Soc.
ISBN: 0821825860
Category : Mathematics
Languages : en
Pages : 97

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Book Description
Random perturbations of Hamiltonian systems in Euclidean spaces lead to stochastic processes on graphs, and these graphs are defined by the Hamiltonian. In the case of white-noise type perturbations, the limiting process will be a diffusion process on the graph. Its characteristics are expressed through the Hamiltonian and the characteristics of the noise. Freidlin and Wentzell calculate the process on the graph under certain conditions and develop a technique which allows consideration of a number of asymptotic problems. The Dirichlet problem for corresponding elliptic equations with a small parameter are connected with boundary problems on the graph.

Separatrix Surfaces and Invariant Manifolds of a Class of Integrable Hamiltonian Systems and Their Perturbations

Separatrix Surfaces and Invariant Manifolds of a Class of Integrable Hamiltonian Systems and Their Perturbations PDF Author: Jaume Llibre
Publisher:
ISBN: 9781470400903
Category : MATHEMATICS
Languages : en
Pages : 206

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Book Description
This work presents a study of the foliations of the energy levels of a class of integrable Hamiltonian systems by the sets of constant energy and angular momentum. This includes a classification of the topological bifurcations and a dynamical characterization of the criticalleaves (separatrix surfaces) of the foliation. Llibre and Nunes then consider Hamiltonain perturbations of this class of integrable Hamiltonians and give conditions for the persistence of the separatrix structure of the foliations and for the existence of transversal ejection-collision orbits of the perturbed system. Finally, they consider a class of non-Hamiltonian perturbations of a family of integrable systems of the type studied earlier and prove the persistence of almost all the tori and cylinders that foliate the energy levels of the unperturbed system as a consequence of KAM theory.

Hamiltonian Systems And Celestial Mechanics (Hamsys-98) - Proceedings Of The Iii International Symposium

Hamiltonian Systems And Celestial Mechanics (Hamsys-98) - Proceedings Of The Iii International Symposium PDF Author: J Delgado
Publisher: World Scientific
ISBN: 9814492116
Category : Science
Languages : en
Pages : 373

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Book Description
This volume is an outgrowth of the Third International Symposium on Hamiltonian Systems and Celestial Mechanics. The main topics are Arnold diffusion, central configurations, singularities in few-body problems, billiards, area-preserving maps, and geometrical mechanics. All papers in the volume went through the refereeing process typical of a mathematical research journal.

Hamiltonian Systems and Celestial Mechanics

Hamiltonian Systems and Celestial Mechanics PDF Author:
Publisher: World Scientific
ISBN: 9789810244637
Category : Mathematics
Languages : en
Pages : 380

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Book Description
This volume is an outgrowth of the Third International Symposium on Hamiltonian Systems and Celestial Mechanics. The main topics are Arnold diffusion, central configurations, singularities in few-body problems, billiards, area-preserving maps, and geometrical mechanics. All papers in the volume went through the refereeing process typical of a mathematical research journal.

The Index Theorem for Minimal Surfaces of Higher Genus

The Index Theorem for Minimal Surfaces of Higher Genus PDF Author: Friedrich Tomi
Publisher: American Mathematical Soc.
ISBN: 0821803522
Category : Mathematics
Languages : en
Pages : 90

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Book Description
In this paper we formulate and prove an index theorem for minimal surfaces of higher topological type spanning one boundary contour. Our techniques carry over to surfaces with several boundary contours as well as to unoriented surfaces.

Some Special Properties of the Adjunction Theory for $3$-Folds in $\mathbb P^5$

Some Special Properties of the Adjunction Theory for $3$-Folds in $\mathbb P^5$ PDF Author: Mauro Beltrametti
Publisher: American Mathematical Soc.
ISBN: 0821802348
Category : Mathematics
Languages : en
Pages : 79

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Book Description
This work studies the adjunction theory of smooth 3-folds in P]5. Because of the many special restrictions on such 3-folds, the structure of the adjunction theoretic reductions are especially simple, e.g. the 3-fold equals its first reduction, the second reduction is smooth except possibly for a few explicit low degrees, and the formulae relating the projective invariants of the given 3-fold with the invariants of its second reduction are very explicit. Tables summarizing the classification of such 3-folds up to degree 12 are included. Many of the general results are shown to hold for smooth projective n-folds embedded in P]N with N 2n -1.

Deformation Theory of Pseudogroup Structures

Deformation Theory of Pseudogroup Structures PDF Author: Victor Guillemin
Publisher: American Mathematical Soc.
ISBN: 0821812645
Category : Geometry, Differential
Languages : en
Pages : 90

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Book Description


An Extension of the Galois Theory of Grothendieck

An Extension of the Galois Theory of Grothendieck PDF Author: André Joyal
Publisher: American Mathematical Soc.
ISBN: 0821823124
Category : Mathematics
Languages : en
Pages : 87

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Book Description
In this paper we compare, in a precise way, the concept of Grothendieck topos to the classical notion of topological space. The comparison takes the form of a two-fold extension of the idea of space.

Methods of Qualitative Theory of Differential Equations and Related Topics

Methods of Qualitative Theory of Differential Equations and Related Topics PDF Author: Lev M. Lerman
Publisher: American Mathematical Soc.
ISBN: 9780821826638
Category : Mathematics
Languages : en
Pages : 58

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Book Description
Dedicated to the memory of Professor E. A. Leontovich-Andronova, this book was composed by former students and colleagues who wished to mark her contributions to the theory of dynamical systems. A detailed introduction by Leontovich-Andronova's close colleague, L. Shilnikov, presents biographical data and describes her main contribution to the theory of bifurcations and dynamical systems. The main part of the volume is composed of research papers presenting the interests of Leontovich-Andronova, her students and her colleagues. Included are articles on traveling waves in coupled circle maps, bifurcations near a homoclinic orbit, polynomial quadratic systems on the plane, foliations on surfaces, homoclinic bifurcations in concrete systems, topology of plane controllability regions, separatrix cycle with two saddle-foci, dynamics of 4-dimensional symplectic maps, torus maps from strong resonances, structure of 3 degree-of-freedom integrable Hamiltonian systems, splitting separatrices in complex differential equations, Shilnikov's bifurcation for C1-smooth systems and "blue sky catastrophe" for periodic orbits.