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| Next Colloquium |
To be announced
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contact:
Hiraku Nozawa ; e-mail <hnozawaATfc.ritsumei.ac.jp>
e-mail <imamurayATfc.ritsumei.ac.jp>
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| Last Colloquium |
August 25, 2014 @WW 7-4, 11：00--12:00
Andreas M. Hinz （the University of Munich）
Title：On the Jörgens conjecture in spectral theory
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| Past Colloquiums |
| 2014 |
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.
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May 2, 2014 @Prism House P106, 16：30--18:10
--- 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.
--- 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.
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January 16, 2014 @P108, 16：30--18:40
--- 16:30 -- 17:30 ---
Tai-Ho Wang (City University of New York)
Title : Implied volatility from local volatility: A path integral approach
abstract
--- 17:40 -- 18:40 ---
André Martinez (Università di Bologna)
Title : Optimal estimates for the Helmholtz resonator
abstract
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| 2013 |
December 6, 2013 @WW 7-2, 16：30--17:30
Yasufumi Nitta（Tokyo Institute of Technology）
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November 8, 2013 @WW 7-2, 16：30--17:30
Toshiyuki Kikuta（Ritsumeikan Univ.）
Title : On congruences for modular forms with several variables
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October 21, 2013 @Forest House F106, 16：30--17:30
Noriaki Ikeda（Ritsumeikan Univ.）
Title : Cohomology theory as a gauge theory
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April 25, 2013 @Prism House P106, 16：30--18:10
16:30 -- 17:15 Takahiro Aoyama（Ritsumeikan Univ.）
Title : Multiple zeta functions and probability distributions on R^d
17:25 -- 18:10 Hiraku Nozawa（Ritsumeikan Univ.）
Title : Introduction to the geometry of foliations
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January 31, 2013 @WW 7-2, 16：30--17:30
Tetsuro Kamae (Osaka City University)
Title : An easy criterion for randomness
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| 2012 |
May 14, 2012 @WW 7-1, 16：30--18:15
--- 16:30 -- 17:15 ---
Takehiro Hasegawa ( Ritsumeikan Univ. )
Title : Some remarks on superspecial curves of low genus
--- 17:30 -- 18:15 ---
Takuya Okamoto ( Ritsumeikan Univ. )
Title : Extended parity result of a partial Mordell-Tornheim double zeta function
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February 20, 2012 @WW 7-3, 15：00--17:10
--- 15:00 -- 16:00 ---
M. Dimassi ( Université Bordeaux 1)
Title : Spectral shift function for Stark Hamiltonian
a joint work with S. Fujiié
--- 16:10 -- 17:10 ---
D.T. Hoa （ Duy Tan University ）
Title : Inequalities and characterizations of the traces on operator algebras
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January 11 @WW 7-4, 17：00--18:00
Hiroshi Yanagihara (Yamaguchi University)
Title :Covering properties of holomorphic functions and Bloch spaces
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| 2011 |
October 13 @WW 7-2, 17：00--18:00
Seung-Hyeok Kye (Seoul National University)
Title :Product vectors and entangled edge states with positive partial
transposes
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June 27 @WW 7-1, 16：30--17:30
Serge Richard (Universite de Lyon and Tsukuba University)
Title : Magnetic pseudodifferential calculus, twisted crossed product algebras
and quantization
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June 6 @WW 7-1, 16：30--17:30
Takashi Yoshinaga （Ritsumeikan Univ.）
Title : The solutions of quadratic Diophantine equations and the class
number
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May 9 @WW 7-1, 16：30--17:30
Kohatsu-higa arturo（Ritsumeikan Univ.）
Title : Infinite dimensional analysis for diffusion processes
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January 27 @WW 7-2, 16：00--17:00
G. Kerkyacharian（Universite Paris 7 et 10）
Title : Well localized frames, sampling, representation of function spaces,
and heat kernel estimates
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January 18 @WW 7-2, 18：00--19:00
Yousuke Araya（Ritsumeikan Univ.）
Title : Introduction to Vector Optimization
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| 2010 |
December 27 @WW 7-2, 15：30--17:15
--- 15:30--16:15 ---
André Martinez（Universita di Bologna）
Title : Estimates on the resonances
of the Helmoltz resonator (joint work with L. Nedelec)
--- 16:30--17:15 ---
Vania Sordoni（Universita di Bologna）
Title : Propagation of Gevrey-singularities
for microhyperbolic operator via FBI transform
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December 07 @WW 7-2, 18：00--19:00
Yasuhiko Sato (Ritsumeikan Univ.)
Title : Classification of amenable group actions on amenable $C^*$-algebras
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