Cover image for Embedding Problems in Symplectic Geometry : Embedding Problems in Symplectic Geometry.
Embedding Problems in Symplectic Geometry : Embedding Problems in Symplectic Geometry.
Title:
Embedding Problems in Symplectic Geometry : Embedding Problems in Symplectic Geometry.
Author:
Schlenk, Felix.
ISBN:
9783110199697
Personal Author:
Physical Description:
1 online resource (260 pages)
Series:
De Gruyter Expositions in Mathematics ; v.40

De Gruyter Expositions in Mathematics
Contents:
Preface -- Contents -- Introduction -- 1.1 From classical mechanics to symplectic geometry -- 1.2 Symplectic embedding obstructions -- 1.3 Symplectic embedding constructions -- Proof of Theorem 1 -- 2.1 Comparison of the relations ≤ -- 2.2 Rigidity for ellipsoids -- 2.3 Rigidity for polydiscs ? -- Proof of Theorem 2 -- 3.1 Reformulation of Theorem 2 -- 3.2 The folding construction -- 3.3 End of the proof -- Multiple symplectic folding in four dimensions -- 4.1 Modification of the folding construction -- 4.2 Multiple folding -- 4.3 Embeddings into balls -- 4.4 Embeddings into cubes -- Symplectic folding in higher dimensions -- 5.1 Four types of folding -- 5.2 Embedding polydiscs into cubes -- 5.3 Embedding ellipsoids into balls -- Proof of Theorem 3 -- 6.1 Proof of lim -- 6.2 Proof of lim -- 6.3 Asymptotic embedding invariants -- Symplectic wrapping -- 7.1 The wrapping construction -- 7.2 Folding versus wrapping -- Proof of Theorem 4 -- 8.1 A more general statement -- 8.2 A further motivation for Problem -- 8.3 Proof by symplectic folding -- 8.4 Proof by symplectic lifting -- Packing symplectic manifolds by hand -- 9.1 Motivations for the symplectic packing problem -- 9.2 The packing numbers of the 4-ball and -- 9.3 Explicit maximal packings in four dimensions -- 9.4 Maximal packings in higher dimensions -- Appendix -- Bibliography -- Index.
Abstract:
Symplectic geometry is the geometry underlying Hamiltonian dynamics, and symplectic mappings arise as time-1-maps of Hamiltonian flows. The spectacular rigidity phenomena for symplectic mappings discovered in the last two decades show that certain things cannot be done by a symplectic mapping. For instance, Gromov's famous "non-squeezing'' theorem states that one cannot map a ball into a thinner cylinder by a symplectic embedding. The aim of this book is to show that certain other things can be done by symplectic mappings. This is achieved by various elementary and explicit symplectic embedding constructions, such as "folding", "wrapping'', and "lifting''. These constructions are carried out in detail and are used to solve some specific symplectic embedding problems. The exposition is self-contained and addressed to students and researchers interested in geometry or dynamics.
Local Note:
Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2017. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.
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