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„Characteristic classes for families of genus one curves“
Prof. Lenny Taelman, Universität Leiden
I will show how to (partly) compute the cohomology of the stack of genus one curves, and how this yields a rich source of cohomological invariants (`characteristic classes') of families of curves of genus one. In particular, these invariants give non-trivial obstructions against the existence of a section.
Freitag, den 24. Januar 2014 um 13:30 Uhr, in INF 288, HS4 Freitag, den 24. Januar 2014 at 13:30, in INF 288, HS4