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Complex analysis, holomorphic functions, automorphic group actions and forms, pseudoconvexity, complex geometry, analytic spaces, analytic sheaves.

5 votes

Can a metric conformal to a Kahler metric be Kahler?

The paper by Apostolov, Calderbank, and Gauduchon that Francesco mentions find different Kaehler structures whose associated Riemannian metrics are conformal to each other. But they correspond to diff …
Spiro Karigiannis's user avatar
5 votes

Is a simply connected Ricci-flat Kaehler manifold a Calabi-Yau manifold?

José is correct, with the caveat that Gunnar mentioned - you need simple-connectedness to know that reduced holonomy = holonomy. Below I expand a bit more on the details. [Thanks to Tim Perutz for cat …
Spiro Karigiannis's user avatar