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symplectic [2022/05/02 14:58] kalinin0symplectic [2022/07/20 15:14] g.m
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 ===== GeNeSys: Geneva-Neuchâtel Symplectic geometry seminar ===== ===== GeNeSys: Geneva-Neuchâtel Symplectic geometry seminar =====
----------------- + 
-  2022, April 27, Friday, Université de Neuchâtel +----------------     
-    +2022, July 15, Friday, Université de Genève 
 + 
 + 
 +  Kyler Siegel (University of Southern California) 
 +   
 +  "On the symplectic complexity of affine varieties" 
 + 
 +Abstract 
 + 
 +Symplectic topology is a framework for studying global features of spaces, lying somewhere between differential topology and algebraic geometry in terms of flexibility versus rigidity. In this talk we introduce a new notion of "symplectic complexity" for smooth complex affine varieties. This captures purely symplectic features which are different from classical topological invariants such as homology, and it also goes beyond the standard usage of Floer theory. As our main application, we study symplectic embeddings between divisor complements in complex projective space, giving a complete characterization in many cases.  
 + 
 +Welcome and lunch. 11h-14h 
 + 
 +Lecture 1. 14h-15h 
 + 
 +Lecture 2. 15h30. 
 + 
 + 
 +----------------     
 +2022, April 29, Friday, Université de Neuchâtel 
 + 
   Yakov Eliashberg (Stanford, visiting ITS-Zürich)   Yakov Eliashberg (Stanford, visiting ITS-Zürich)
-  **Honda-Huang's work on contact convexity revisited**+   
 +  "Honda-Huang's work on contact convexity revisited"
  
 Abstract Abstract
 +
 Two years ago Ko Honda and Yang Huang proved a series of remarkable results concerning contact convexity in high dimension. Two years ago Ko Honda and Yang Huang proved a series of remarkable results concerning contact convexity in high dimension.
 Unfortunately, their proof is extremely involved and not easy to follow. I will explain in the talk another proof,  joint with Dishant Pancholi. Unfortunately, their proof is extremely involved and not easy to follow. I will explain in the talk another proof,  joint with Dishant Pancholi.
 While it follows the same overall strategy as Honda-Huang’s proof,  it is drastically simpler in its implementation. While it follows the same overall strategy as Honda-Huang’s proof,  it is drastically simpler in its implementation.
 +
 +Welcome and lunch. 12h-14h
  
 Lecture 1. 14h-15h Lecture 1. 14h-15h
 +
 Lecture 2. 15h30. Lecture 2. 15h30.
  
symplectic.txt · Dernière modification : 2023/11/27 17:55 de slavitya_gmail.com