SMS scnews item created by James East at Fri 20 Nov 2009 1421
Type: Seminar
Distribution: World
Expiry: 27 Nov 2009
Calendar1: 27 Nov 2009 1205-1255
CalLoc1: Carslaw 375

Algebra Seminar

Generators in triangulated categories

Amnon Neeman

Friday November 27, 12:05--12:55pm, Carslaw 375


In classical category theory there is a well-developed, clear understanding of what it means for a set of objects to generate a category. We will review this. The definition only makes sense when the category is "concrete", in the sense of Freyd. Triangulated categories are rarely concrete, and in a very real sense we have yet to understand what is the "right" notion of generators.

I will discuss several definitions that have been made in recent years, and then some tantalizing work by Rosicky.


After the seminar we will take the speaker to lunch.

See the Algebra Seminar web page for information about other seminars in the series.

James East

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