|
Ina Reckermann

Olaf Schnürer: Conservative descent for semi-orthogonal decompositions, Oberseminar Algebra und Geometrie

Wednesday, 20.12.2017 16:15 im Raum M4

Mathematik und Informatik

Motivated by the local flavor of several well-known semi-orthogonal decompositions in algebraic geometry, we introduce a technique called conservative descent, which shows that it is enough to establish these decompositions locally. The decompositions we have in mind are those for projectivized vector bundles and blow-ups (due to Orlov) and root stacks (due to Ishii and Ueda). Our technique simplifies the proofs of these decompositions and establishes them in greater generality. If time permits, we may also discuss semi-orthogonal decompositions for Brauer-Severi varieties (due to Bernardara). This is joint work with Daniel Bergh (Copenhagen).



Angelegt am Thursday, 14.12.2017 12:00 von Ina Reckermann
Geändert am Thursday, 14.12.2017 12:00 von Ina Reckermann
[Edit | Vorlage]

Oberseminare und sonstige Vorträge