18–22 Dec 2023
Kavli IPMU, Kashiwa, Japan
Asia/Tokyo timezone

Cotilting complexes over commutative noetherian rings

18 Dec 2023, 16:30
30m
Lecture Hall (Kavli IPMU, Kashiwa, Japan)

Lecture Hall

Kavli IPMU, Kashiwa, Japan

Kashiwa, Japan

Speaker

Tsutomu Nakamura (Mie)

Description

We give a nontrivial example of a cotilting complex that induces a compactly generated t-structure in the unbounded derived category of a commutative noetherian ring, and explain its relation with big Cohen-Macaulay modules and Cohen-Macaulay approximations. This talk is partly based on joint work with Michal Hrbek and Jan Stovicek (arXiv:2207.01309).

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