SMS scnews item created by Catherine Meister at Wed 15 Apr 2026 0853
Type: Seminar
Distribution: World
Expiry: 29 Apr 2026
Calendar1: 17 Apr 2026 0900-1100
CalLoc1: SMRI Seminar Room (A12 Macleay Room 301)
CalTitle1: Anatomy of triangulated categories I: Derived Morita theory for D^b Coh(P^1)
Auth: cmeister@159-196-153-133.9fc499.syd.nbn.aussiebb.net (cmei0631) in SMS-SAML
Informal Friday Seminar: Klein
Anatomy of triangulated categories I: Derived Morita theory for D^b
Coh(P^1)
Finn Klein, University of Sydney
Informal Friday Seminar, 17th April 2026
9 am – 11 am, SMRI Seminar Room (A12 Macleay Room 301)
Abstract: Triangulated categories are ubiquitous in contemporary
algebra, geometry, topology - among many other fields - but they can be scary to get
into if you don't know where to start. My goal is to show that often this fear is
unjustified: In good cases, the tools of derived/dg Morita theory allow us to describe
some triangulated category very explicitly as the derived category of quiver
representations. We will demonstrate this passage for the bounded derived category for
coherent sheaves on the projective line.
The Informal Friday Seminar is a space where members of our research group can explain
interesting things to each other in a casual setting. The rules of the seminar are the
following:
- Any question/additional explanation from the audience is
allowed.
- Ego out the window.
- Examples, examples, examples.
The seminar is intended to be conversational, so come ready to engage. If you choose to
give an IFS talk, it's important to know that part of the IFS philosophy is that
learning is not linear. In other words, it if perfectly acceptable to give a
talk that is a prerequisite for a talk that already happened. For IFS updates, please
see the IFS website
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