Sandra Huppert

Prof. Dr. Annette Huber-Klawitter, Albert-Ludwigs-Universität Freiburg, Vortrag: Differential forms in algebraic geometry -- a new perspective in the singular case

Thursday, 19.11.2015 16:30 im Raum M5

Mathematik und Informatik

Differential forms originally show up when integrating or differentiating on manifolds. However, the concept also makes perfect sense on algebraic varieties because the derivative of a polynomial is a polynomial. The object has very many important uses, e.g., as a source of invariants needed in order to classify varieties. This approach was very successful for smooth varieties, but the singular case is less well-understood. We explain how the use of the h-topology (introduced by Suslin and Voevodsky in order to study motives) gives a very good object also in the singular case, at least in characteristic zero. The approach unifies other ad-hoc notions and simplies many proofs. We also explain the necessary modifications in positive characteristic and the new problems that show up.

Angelegt am Thursday, 27.08.2015 14:12 von Sandra Huppert
Geändert am Monday, 12.10.2015 11:13 von Sandra Huppert
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Kolloquium Wilhelm Killing