Projective Presentations over quasicompact algebrasOberseminar Algebra und Darstellungstheorie

by Carolin Hartung (Universität Bonn)

Thursday Apr 23, 2026, 4:15 PM → 5:15 PM Europe/Berlin

Endenicher Allee 60/1-008-Seminarraum (Mathezentrum)

In a joint work with Christoph Geiss, Daniel Labardini-Fragoso and Jan Schröer we give a general formula for minimal projective presentations of finite-dimensional modules over quasicompact basic algebras. This result generalizes a description of minimal projective presentations for modules over Jacobian algebras proven by Weyman, Derksen and Zelevinsky. In particular, we are able to drop their finiteness assumptions and work over fields of arbitrary characteristics.