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Given a curve over a dvr of mixed characteristic 0-p with smooth generic fiber and with semistable reduction, I will present a criterion for good reduction in terms of the (unipotent) p-adic étale fundamental group of its generic fiber.
此报告为"巴黎北京东京算术几何讨论班"的一次报告，该讨论班通过网络会议的形式在三地定期开展，原则上每月第二个周三，北京时间下午16:30或17:00开始，北京会场地址在晨兴中心110. | 
