Seminar on Stacks (PhD Seminar)

Termin: Montag 16-18 Uhr in WSC-N-U-4.05
Dozenten J. Heinloth

We will usually start the seminar with a discussion/Q&A/recap-session on one of the Thursday seminars.
Afterwards we discuss a topic/an article one of us wants to understand, the choice for the next topic is made at the end of the seminar. The list below will thus be updated regularly, a list of links to articles and preprints discussed is included below.

Termin	Vortragender	Titel
09.10.2023	Federica Santi/Jochen Heinloth	Stability conditions for line bundles on nodal curves I
16.10.2023	Discussion	Stability conditions for line bundles on nodal curves II
23.10.2023	Discussion/Yingying Wang	Toric varieties / Cohomology of DL-Varieties
30.10.2023	Dario Weissmann/Jochen Heinloth	Pic(Bun_G) and group stacks
06.11.2023	Matteo Costantini	Local systems on proper DM-stacks
13.11.2023	Matteo Costantini/Jochen Heinloth	Local systems on proper DM-stacks II
20.11.2023	Federica Santi/Ludvig Modin	Unstable strata
27.11.2023	Chirantan Chodhury/Matteo Costantini	Local systems on proper DM-stacks III
04.12.2023	Benson Farb/Sara Torelli	VBAC-webinar talks
11.12.2023	Carolina Tamborini et al	RTG-Taks
18.12.2023	Ludvig Modin	The U-hat thorem
08.01.2024	Sveta Makarova	stability vs geometric stability
15.01.2024	Discussion	Stability conditions for chains, Blow-ups and singularities
22.01.2024	Jochen Heinloth	Weightd blow-ups and the invariant used for resolving singularities
29.01.2024	Davide/Ludvig/Michele	Discussion on curves with G_m-action

Links to Articles and Preprints for the different topics:

Stability conditions for line bundles on nodal curves (by Nicola Pagani and Orsoloa Tommasi)

The line bundles on moduli stacks of principal bundles on a curve (by Indranil Biswas and Norbert Hoffmann)

Linearization of group stack actions and the Picard group of the moduli of SLr/μs-bundles on a curve. (by Yves Laszlo)

Local systems on proper algebraic V-manifolds. (by Carlos Simpson)