Joint ICTP, SISSA and UNITS Seminar (Triplice Seminario Triestino) - Friday 4 November, at 10:00 - Venue: SISSA

[ICTP Math Section]

Dear All,

we are pleased to announce the first talk delivered at TRINO (Triplice 
Seminario Triestino),

jointly run by ICTP, SISSA and UNITS.

*Organisers:* G. Gugiatti (ICTP), D. Lewanski (UNITS), Y. Prieto (ICTP), 
A. Ricolfi (SISSA)

*Venue:* Friday November 4th, 2022 — Room 134 (SISSA) at 10:00

*Speaker:* Tasos Moulinos (Institut de Mathématiques de Toulouse, CNRS)

*Abstract:* In this talk I will describe my work with Robalo and Toën on 
the filtered circle. This is an algebro-geometric object of a 
homotopical nature (more precisely, it is a stack) whose cohomology 
admits a natural filtration. Using basic constructions in derived 
algebraic geometry, one then forms mapping spaces with this object as a 
source and an arbitrary (derived) scheme X as the target. The cohomology 
of these mapping spaces recovers the Hochschild homology of X, together 
with its functorially defined HKR filtration. I will of course describe 
some key ideas from derived algebraic geometry necessary to understand 
the construction.
_*
*__*Full details on the TRINO webpage*_: 
https://sites.google.com/view/trinotriestino/home

All interested are welcome (but may need a badge or a friend with a 
badge, since SISSA will be closed on November 4th)!

All the best,

Andrea T. Ricolfi
SISSA
Via Bonomea 265, 34136 Trieste
https://atricolfi.github.io

**************


-- 

Koutou Mabilo
ICTP Mathematics Group
Leonardo Da Vinci Building
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34151 Trieste, Italy
Tel. no.: +39-040-2240455

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