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Approximating foliations by contact structures

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Speaker: 
Lauran Toussaint
Zugehörigkeit: 
Utrecht
Datum: 
Fre, 2020-03-13 11:00 - 12:00
Location: 
MPIM Lecture Hall

Although their definitions are in some sense opposite, contact structures and foliations display many similarities. This is especially clear in the $3$-dimensional theory of confoliations which unites both structures in a single framework. A famous theorem by Eliashberg and Thurston states that, with a single exception ($\mathbb{S}^1 \times \mathbb{S}^2$ foliated by spheres), any (con)foliation on a $3$-manifold can be approximated by contact structures.

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