报告人：叶澍阳 （柏林洪堡大学）

主持人：谢兵永

报告时间：10月23日 15：00-16：00 

报告地点： 数学楼 126

报告摘要：In this talk, I will first recall the notion of (phi,nabla)-modules over the Robba ring (i.e. finite free differential modules over the Robba ring with a Frobenius structure). I will then explain the p-adic local monodromy theorem, proven independently by Y. Andre, K. Kedlaya and Z. Mebkhout in 2000s, which states that every (phi,nabla)-module over the Robba ring is quasi-unipotent. Furthermore, I will consider G-versions of the above construction and theorem, where G denotes a connected reductive algebraic group over some local field.