[geometry-ml:03884] MS seminar at Kavli IPMU -- Gregory Sankaran and Boris Tsygan

[Todor Milanov]

Dear all,

I would like to announce the following two MS seminars at Kavli IPMU

1) Speaker: Gregory Sankaran (U of Bath)
Date:	Thu, Nov 14, 2019, 12:30 - 14:00
Place:	Seminar Room B

Title:	Topology of cylindrical algebraic decomposition

Abstract: Cylindrical algebraic decomposition (CAD) represents a semi-algebraic subset of real n-space as a cell complex. For this to be of any use, practical or theoretical, we need some further conditions: a helpful one is to have a regular cell complex (in effect, one barycentric subdivision away from a simplicial complex). In general a CAD is not a regular cell complex, but, using methods from real algebraic geometry and from topology, we show that under some quite ordinary circumstances it is. This is joint work with James Davenport and Acyr Locatelli.

2) Speaker:	Boris Tsygan (Northwestern U)
Date:	Thu, Nov 21, 2019, 15:30 - 17:00
Place:	Seminar Room A

Title and Abstract will be available soon on the seminar webpage

https://research.ipmu.jp/seminar/?seminar_id=2442

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Todor Eliseev Milanov
Associate Professor 
Kavli IPMU,  Japan

todor.milanov ＠ ipmu.jp