皆様

下記のようにKobe Logic Seminarを開催しますので、お知らせいたします。 （神戸大学 桔梗宏孝）

Kobe Logic Seminar https://www.edu.kobe-u.ac.jp/csi-lsi/seminar/kls.html

Date: Tuesday, December 26, 2023 Time: 15:10-16:10 Speaker: Koki Okura (University of Tsukuba) Place:　Kobe University, Science and Technology Research Building 3, Room 421, (4th Floor)

日時：2023年12月26日（火）15:10~16:10 講演者：大倉　昂貴　氏 （筑波大学 数理物質科学研究群） 場所：神戸大学自然科学総合研究棟3号館4階421室（プレゼンテーション室）

============================================================

Title ：On rationality of Poincaré series in expansions of the p-adic fields

Abstract： Researches in model theory focus on algebraic or more general structures, that is, a set with some functions and relations on it, and also focus on subsets definable by those functions and relations. Various "good" properties of definable sets have been introduced. Some properties describe concrete forms of definable sets while others are more abstract and combinatoric ones applicable without respect to the sort of structures. Recently, the relation of concrete properties and abstract ones have been revealed for several structures. For instance, o-minimality and dp-minimality coincide for expansions of the real field. In this talk, we will deal with the rationality of Poincaré series of definable sets in expansions of the p-adic fields as a concrete property, and see some positive and negative results of tries to connect it to several abstract properties. ========================================================

交通：阪急六甲駅またはJR六甲道駅から神戸市バス36系統「鶴甲団地」 行きに乗車，「神大本部工学部前」停留所下車，徒歩すぐ． (次の地図で[65]の建物) https://www.kobe-u.ac.jp/guid/access/rokko/rokkodai-dai2.html