The Yamabe invariant is a real-valued diffeomorphism invariant coming from Riemannian geometry. Using Seiberg-Witten theory, LeBrun showed that the sign of the Yamabe invariant of a Kähler surface is determined by its Kodaira dimension. We consider the extent to which this remains true when the Kähler hypothesis is removed. This is partly based on joint work with Claude LeBrun.
The Yamabe invariant of complex surfaces
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Nom de l'orateur
Michael Albanese
Etablissement de l'orateur
Université du Québec à Montreal
Date et heure de l'exposé
Lieu de l'exposé
Salle Éole