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Infinite dimensional geometries on the space of Kahler metrics and applications to canonical metrics

Kähler Geometry, Einstein Metrics, and Generalizations March 21, 2016 - March 25, 2016

March 22, 2016 (02:00 PM PDT - 03:00 PM PDT)
Speaker(s): Tamas Darvas (University of Maryland)
Location: MSRI: Simons Auditorium
Tags/Keywords
  • algebraic geometry and GAGA

  • mathematical physics

  • complex differential geometry

  • Kahler metric

  • mirror symmetry

  • Finsler spaces

  • potential theory

  • gradient flows

Primary Mathematics Subject Classification
Secondary Mathematics Subject Classification No Secondary AMS MSC
Video

Abstract

we introduce the L^p Mabuchi-Finsler structures on the space of Kahler metrics and present the resulting path length geometries. All the metric completions are geodesic metric spaces that can be characterized using elements of finite energy pluripotential theory and we focus on three particular cases of interest. Using convexity in the L^\infty geometry, one may be able to obtain C^0 estimates for variational PDE problems arising in Kahler geometry. The L^2 geometry is non-positively curved and seems to be the ideal context to study metric properties of gradient flows of various convex functionals, including the Calabi flow and the J-flow. The L^1 geometry enjoys a compactness property and has metric growth prescribed by the J functional, making it a useful tool in the study of energy properness questions, leading  to the recent resolution of Tian's related conjectures

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Video/Audio Files

14464

H.264 Video 14464.mp4 357 MB video/mp4 rtsp://videos.msri.org/data/000/025/585/original/14464.mp4 Download
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