5 papers
A Note on Jacobians with Prescribed Factors
Congling Qiu
Over an infinite field, we prove a refinement of Matsusaka's theorem in which the complementary isogeny factor can be made absolutely simple of arbitrarily large dimension. We also…
Theta correspondence and Springer correspondence
Jia-Jun Ma, Congling Qiu, Zhiwei Yun +1
In this paper, we obtain an explicit formula for the theta correspondence of unipotent principal-series representations between an even orthogonal and a symplectic group or between…
Hyperelliptic Shimura curves and -functions of central vanishing order at least 3
Congling Qiu
We use hyperelliptic Shimura curves to find triple product -functions of Hilbert newforms with central vanishing orders proved to be at least 3.
Faber--Pandharipande cycle, real multiplication and torsion points
Congling Qiu
A result of Green and Griffiths states that for the generic curve over of genus with a canonical divisor , its Faber--Pandharipande 0-cycle $K\times…
Non-vanishing of Ceresa and Gross--Kudla--Schoen cycles associated to modular curves
Matt Kerr, Wanlin Li, Congling Qiu +1
Associated to an algebraic curve , there are two canonically constructed homologically trivial algebraic -cycles, the Ceresa cycle in the Jacobian of , and the Gross-Kudla…