NYJM Logo

New York Journal of Mathematics
Volume 30 (2024), 593-624

  

Yuxiang Ji

Small angle limits of negatively curved Kahler-Einstein metrics with crossing edge singularities

view    print


Published: April 15, 2024.
Keywords: Kahler-Einstein edge metrics, Poincare singularities, holomorphic bisectional curvature.
Subject [2010]: 32Q20, 53C21.

Abstract
Let (X,D) be a log smooth log canonical pair such that KX+D is ample. Extending a theorem of Guenancia and building on his techniques, we show that negatively curved Kahler-Einstein crossing edge metrics converge to Kahler-Einstein mixed cusp and edge metrics smoothly away from the divisor when some of the cone angles converge to 0. We further show that near the divisor such normalized Kahler-Einstein crossing edge metrics converge to a mixed cylinder and edge metric in the pointed Gromov-Hausdorff sense when some of the cone angles converge to 0 at (possibly) different speeds.

Acknowledgements

Research supported in part by the NSF grant DMS-1906370 and the Michael Brin Graduate Fellowship at the University of Maryland.


Author information

Yuxiang Ji
Department of Mathematics
University of Maryland
College Park, MD 20740, USA

yxji@umd.edu