21-23 October 2015
Institut de Mathématiques de Toulouse
Europe/Paris timezone
21-23 Octobre 2015, Institut de Mathématiques de Toulouse

Gorenstein categories and universal coefficient theorems

21 Oct 2015, 16:40
Amphi Schwartz, bat. 1R3 (Institut de Mathématiques de Toulouse)

Amphi Schwartz, bat. 1R3

Institut de Mathématiques de Toulouse

118 Route de Narbonne 31068 Toulouse
Exposé de recherche sur invitation TopAlg


Dr Greg Stevenson (Bielefeld)


One can frequently interpret universal coefficient theorems as computations of hom-sets in some triangulated category T via morphisms and extensions between certain cohomological functors. The relevant cohomological functors are obtained by restricting the hom-functors of T to a "suitably nice" subcategory C. I'll discuss joint work with Ivo Dell'Ambrogio and Jan Stovicek which explains when C is "suitably nice" in terms of Gorenstein homological algebra in the category of representations of C and gives criteria to recognise suitably nice subcategories.

Primary author

Dr Greg Stevenson (Bielefeld)

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