Curvature formula for direct images of twisted relative canonical bundles endowed with a singular metric
Résumé
In this note, we obtain various formulas for the curvature of the L^2 metric on the direct image of the relative canonical bundle twisted by a holomorphic line bundle endowed with a positively curved metric with analytic singularities, generalizing some of Berndtsson's seminal results in the smooth case. When the twist is assumed to be relatively big, we further provide a very explicit lower bound for the curvature of the L^2 metric.
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