Lecture----数学院晨兴数学中心

Title:	Congruences and special values of L-functions
Speaker:	Olivier Fouquet ()
Time:	2019-3-4, 15:00
Place:	N817
Abstract:	Conjectures on special values of L-functions, like the Birch and Swinnerton-Dyer conjecture, predict the value of L-functions of elliptic curves, abelian varieties, modular forms and more generally motives at integers. In this talk, I discuss the following question: suppose two motives are congruent modulo a prime p and suppose we know conjectures on special values of L-functions are true for the first one, can we deduce that they are also true for the second one? I show that this is the case (under mild hypotheses) if the two motives come from eigencuspforms.
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