立命館大学数理科学科

幾何学セミナー

講演者：廣田祐士（麻布大学）
タイトル：A brief look at Poisson geometry
日時： 7月17日（金）16:30-18:00
場所： ウェストウィング7階　数学第３研究室
アブストラクト： The talk is an overview of Poisson geometry. We plan to deal with Poisson manifolds involving Lie groupoids/algebroids at the first half of the talk, and at the second half, will discuss Dirac structures which are useful frameworks to unify Poisson geometry and symplectic geometry.

日時： 7月14日(火) 16:30 — 17:30
場所： 立命館大学 BKC フォレストハウス1階 F111
講演者： Fabrice Baudoin 氏（パデュー大学）
講演題目： Hypocoercive diffusions

アブストラクト： In this talk, we will present a new method to study the convergence to equilibrium of hypocoercive diffusions. The method is based on local computations and parallels the Bakry-Emery approach to hypercontractivity.

• Date : 9 Jul. (Thu.)
• Place: W.W. 7th-floor, 4th lab.
• Time : 16:30-18:00
• Speaker: Takafumi Amaba (Ritsumeikan University)

講演者: Vania Sordoni(University of Bologna)
講演題目: Gevrey microhyperbolicity and FBI transform.
アブストラクト： We  study the  Gevrey singularities of the solution of  microhyperbolic  equations by using exponential weighted estimates in the phase space. In particular, we recover  some known results on the propagation of Gevrey regularity  in a elementary way, using microlocal exponential estimates

• Date : 25 Jun. (Thu)
• Place: W.W. 7th-floor, 4th lab.
• Time : 16:30-18:00
• Speaker: Yasushi Ishikawa (Ehime University)

• Date : 18 Jun. (Thu)
• Place: W.W. 7th-floor, 4th lab.
• Time : 16:30-18:00
• Speaker: Pham Hai Ha (Duy Tan University)

• Date : 11 Jun. (Thu)
• Place: W.W. 7th-floor, 4th lab.
• Time : 16:30-18:00
• Speaker: Kenji Yasutomi (Ritsumeikan University)

• Date : 4 Jun. (Thu)
• Place: W.W. 7th-floor, 4th lab.
• Time : 16:30-18:00
• Speaker: Jens Wittsten (Ritsumeikan University)

• Date : 21 May (Thu)
• Place: W.W. 7th-floor, 4th lab.
• Time : 16:30-18:00
• Speaker: Yasuhiro Tsubo (Ritsumeikan University)