100, rue des maths 38610 Gières / GPS : 45.193055, 5.772076 / Directeur : Louis Funar

Thomas Eckl

Seshadri constants, K\"ahler packings and moment maps
Lundi, 21 Septembre, 2015 - 14:00
Résumé : 

In close analogy to the symplectic situation we show that on complex projective surfaces (multi-point) Seshadri constants encode obstructions to K\"ahler packings with balls. On toric surfaces we use moment maps to explicitly construct such K\"ahler packings with balls centered in points fixed by the torus action. Finally, we speculate how to extend such constructions to more general surfaces, or at least more general point configurations.

Institution de l'orateur : 
Université de Liverpool
Thème de recherche : 
Algèbre et géométries
Salle : 
4
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