Basis log canonical thresholds, local intersection estimates, and asymptotically log del Pezzo surfaces

Ivan Cheltsov, Yanir A. Rubinstein, Kewei Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

The purpose of this article is to develop techniques for estimating basis log canonical thresholds on logarithmic surfaces. To that end, we develop new local intersection estimates that imply log canonicity. Our main motivation and application is to show the existence of Kahler–Einstein edge metrics on all but finitely many families of asymptotically log del Pezzo surfaces, partially confirming a conjecture of two of us. In an appendix we show that the basis log canonical threshold of Fujita–Odaka coincides with the greatest lower Ricci bound invariant of Tian.
Original languageEnglish
Number of pages36
JournalSelecta Mathematica (New Series)
DOIs
Publication statusPublished - 29 Apr 2019

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