2 citations · 3 across the 3 of their papers we have counts for
5 papers
A comparison between the Bismut-Lott torsion and the Igusa-Klein torsion
Martin Puchol, Yeping Zhang, Jialin Zhu
We consider a fibration with compact fiber together with a unitarily flat complex vector bundle over the total space. Under the assumption that the fiberwise cohomology admits a fi…
Sub-Riemannian geometry on some step-two Carnot groups
Hong-Quan Li, Ye Zhang
This paper is a continuation of the previous work of the first author. We characterize a class of step-two groups introduced in \cite{Li19}, saying GM-groups, via some basic sub-Ri…
An extension of BCOV invariant
Yeping Zhang
Bershadsky, Cecotti, Ooguri and Vafa constructed a real valued invariant for Calabi-Yau manifolds, which is called the BCOV invariant. In this paper, we consider a pair , wh…
BCOV invariant for Calabi-Yau pairs
Yeping Zhang
We construct BCOV invariant for Calabi-Yau pairs. The construction covers the classical BCOV invariant and certain equivariant BCOV invariant. The BCOV invariant obtained is expect…
The direct image of a flat fibration with complex fibers
Yeping Zhang
We consider a proper flat fibration with real base and complex fibers. First we construct odd characteristic classes for such fibrations by a method that generalizes constructions…