Topological applications of 2-dimensional homological algebra

Teimuraz Pirashvili (University of Leicester)

Monday 10th January, 2011 16:00-17:00 204


Recently we developed a 2-dimensional analogue of classical homological algebra, including derived 2-functors and secondary Ext's. This allows us to generalize group cohomology and sheaf cohomology respectively to cohomology of 2-groups and stack cohomology.

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