中科院数学与系统科学研究院
数学研究所
数论研讨班
报告人: 扶 磊 教授(清华大学)
题 目:p-adic Gelfand-Kapranov -Zelevinsky systems
时 间:2019.01.16(星期三),17:00-18:00
地 点:数学院南楼N913室
摘 要:Using Dwork’s trace formula, we express the exponential sum associated to a Laurent polynomial as the trace of a chain map on a twisted de Rham complex for the torus over the p-adic field. Treating the coefficients of the polynomial as parameters, we obtain the p-adic Gelfand -Kapranov-Zelevinsky (GKZ) system, which is a complex of $D^{\dagger}$-modules with Frobenius structure.