News&Events

Math-Fi seminar on 26 Jun.

2014.06.20 Fri up
  • Date : 26 Jun. (Thu)
  • Place: W.W. 7th-floor, 3rd lab. 
  • Time : 16:30 – 18:00
  • Speaker: Takafumi Amaba (Ritsumeikan University)
  • Title: Coadjoint Orbits of Virasoro as a Hamiltonian System
≫ More

Math-Fi seminar on 19 Jun.

2014.06.13 Fri up
  • Date : 19 Jun. (Thu)
  • Place: W.W. 7th-floor, 3rd lab. 
  • Time : 16:30 – 18:00
  • Speaker: Hideyuki Tanaka (Ritsumeikan University)
  • Title: An introduction to asymptotic limits of some multiple (stochastic) integrals
≫ More

Colloquium [June 13, 2014]

2014.06.06 Fri up
June 13, 2014 @BKC campus, Forest House F106, 16：30–18:10
 
— 　16:30 — 17:10　 —　
Thierry Ramond （Univ. Paris-Sud, Ritsumeikan Univ.）
Title：Tunneling Effect, Quantum Resonances and Microlocal Analysis
 
 
— 　17:20 — 18:00　 —　
Koichi Kaizuka （Ritsumeikan Univ.）
Title: Scattering theory on symmetric spaces of noncompact type
 
Abstract: We construct the scattering theory for the Laplacian on symmetric spaces of noncompact type. We study an asymptotic expansion forthe Poisson operator and the resolvent of the Laplacian. Our approach is based on precise analysis for the Helgason Fourier transform and generalized spherical functions on symmetric spaces of noncompact type. 

Math-Fi seminar on 12 Jun.

2014.06.05 Thu up
  • Date : 12 Jun. (Thu)
  • Place: W.W. 7th-floor, 3rd lab. 
  • Time : 16:30 – 18:00
  • Speaker: Yoshihiro Ryu (Ritsumeikan University)
  • Title: An Introduction to Category Theory and Yoneda’s Lemma

Math-Fi seminar on 5 Jun.

2014.06.03 Tue up
  • Date : 5 Jun. (Thu)
  • Place: W.W. 7th-floor, 3rd lab. 
  • Time : 16:30 – 18:00
  • Speaker: Kenji Yasutomi (Ritusmeikan University)
  • Title:  Hölder continuity and finite variation

Math-Fi seminar on 29 May

2014.05.25 Sun up
  • Date : 29 May (Thu)
  • Place: W.W. 7th-floor, 3rd lab. 
  • Time : 16:30 – 18:00
  • Speaker: Dai Taguchi (Ritsumeikan university)
  • Title:  Parametrix approximation scheme for SDEs with unbounded and irregular coefficients and its error estimate

Math-Fi seminar on 22 May

2014.05.16 Fri up
  • Date : 22 May  (Thu)
  • Place: W.W. 7th-floor, 3rd lab. 
  • Time : 16:30 – 18:00
  • Speaker: Ju-Yi Yen (University of Cincinnati)
  • Title:  Some examples of Skorokhod embeddings and their applications

Seminar of Financial Mathematics [May 15, 2014]

2014.05.15 Thu up
Date: May 15, 2014
Place: West Wing 7F, 3rd lab. room
Speaker: Kenichi Arakawa (Resona Bank)
Titl: Mathematical Finance and Banking Works

Math-Fi seminar on 8 May

2014.05.03 Sat up
  • Date : 8 May  (Thu)
  • Place: W.W. 7th-floor, 3rd lab. 
  • Time : 16:30 – 18:00
  • Speaker: Jiro Akahori  (Ritsumeikan University)
  • Title:  TBA

Colloquium [May 2, 2014]

2014.04.28 Mon up
May 2, 2014 @Prism House P106, 16：30–18:10

1. Time: 16:30 — 17:10
Adachi Takanori （Ritsumeikan Univ.）
Title : Toward Categorical Risk Measure Theory
abstract:
We introduce a category that represents varying risk as well as ambiguity. We give a generalized conditional expectation as a presheaf for the category which not only works as a traditional conditional expectation given a σ-field but also is compatible with change of measure. Then, we reformulate dynamic monetary value measures as a presheaf for the category. We show how some axioms of dynamic monetary value measures in the classical setting are deduced as theorems in the new formulation, which is an evidence that the axioms are natural. Finally, we point out the possibility of giving a theoretical criteria with which we can pick up appropriate sets of axioms required for monetary value measures to be good, using a topology-as-axioms paradigm.

2. Time: 17:20 — 18:00
Noriko Wakabayashi （Ritsumeikan Univ.）
Title : Multiple zeta values and finite multiple zeta values
abstract : 
The multiple zeta values (MZVs for short), first considered by L. Euler, are natural generalization of Riemann zeta values. It is known that there are many Q-linear relations among these values with rational coefficients. The finite multiple zeta values (fMZVs for short) have been investigated mainly by M. Hoffman and refined by D. Zagier. In this talk, we discuss some facts, recent results and conjectures for fMZVs, comparing with those for MZVs. 

contact: 
Hiraku Nozawa ; e-mail <hnozawaATfc.ritsumei.ac.jp> 
Yuri Imamura ; e-mail <imamurayATfc.ritsumei.ac.jp>

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