16 citations · 77 across the 37 of their papers we have counts for
4 papers · 1 filter
Witten Genus and String Complete Intersections
Qingtao Chen, Fei Han
In this note, we prove that the Witten genus of nonsingular string complete intersections in product of complex projective spaces vanishes. Our result generalizes a known result of…
Elliptic Genera, Transgression and Loop Space Chern-Simons Forms
Qingtao Chen, Fei Han
We compute the Chern-Simons transgressed forms of some modularly invariant characteristic forms, which are related to the elliptic genera. We study the modularity properties of the…
Even Dimensional Manifolds and Generalized Anomaly Cancellation Formulas
Fei Han, Xiaoling Huang
We give a direct proof of a cancellation formula raised in [7] on the level of differential forms. We also obtain more cancellation formulas for even dimensional Riemannian manifol…
Modular Invariance and Twisted Anomaly Cancellations of Characteristic Numbers
Qingtao Chen, Fei Han
By studying modular invariance properties of some characteristic forms, we obtain twisted anomaly cancellation formulas. We apply these twisted cancellation formulas to study divis…