Intersection number of Rankin–Selberg cycles on shtukas - lecture 2
De Zeyu Wang
The classical Rankin–Selberg integral formula (for G=GL(n) ×GL(n−1) and H=GL(n−1) ) relates integrals of Hecke eigenforms on G along H to the Rankin–Selberg L-function of the associated Galois representation. In this talk, I will present a generalization of this formula over function fields in the everywhere unramified setting, relating the self-intersection numbers of some cycles on the moduli of GShtukas to the higher derivatives of the Rankin–Selberg L-function. This can be viewed as a higher-dimensional analogue of the higher Gross–Zagier formula of Yun–Zhang. The talk will be based on my joint work with Shurui Liu.