As a candidate of the B-model mirror of genus one Gromov-Witten invariants, the so-called Bershadsky-Cecotti-Ooguri-Vafa (BCOV) invariant is a real-valued invariant of Calabi-Yau manifolds defined using analytic methods. In a joint work with Yeping Zhang, based his earlier work, we showed that birationally isomorphic Calabi-Yau manifolds have the same BCOV invariant, confirming a conjecture of Fang, Lu and Yoshikawa. Furthermore, we extended the definition, as well as the birational invariance, of the BCOV invariants to all varieties with numerically trivial canonical class and Kawamata log terminal singularities. I will emphasis the interesting parallel between our argument and Kontsevich's proof of the birational invariance of Hodge numbers of Calabi-Yau manifolds using motivic integration.

3月18日
4:00pm - 5:15pm
地点
https://hkust.zoom.us/j/9584764665(Passcode: 2022)
讲者/表演者
Dr. Lie FU
Radboud University, Netherlands
主办单位
Department of Mathematics
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对象
Alumni, Faculty and staff, PG students, UG students
语言
英语
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