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Seminar information archive
Seminar information archive ～07/01｜Today's seminar 07/02 | Future seminars 07/03～
2007/09/12
Algebraic Geometry Seminar
15:00-18:00 Room #117 (Graduate School of Math. Sci. Bldg.)
E. Lau (Univ. of Bielefeld) 15:00-15:45
Classification of p-divisible groups by displays and duality
T. Zink (Univ. of Bielefeld) 16:00-16:45
Applications of the theory of displays
E. Looijenga (Univ. of Utrecht) 17:00-18:00
Presentation of mapping class groups from algebraic geometry
E. Lau (Univ. of Bielefeld) 15:00-15:45
Classification of p-divisible groups by displays and duality
T. Zink (Univ. of Bielefeld) 16:00-16:45
Applications of the theory of displays
E. Looijenga (Univ. of Utrecht) 17:00-18:00
Presentation of mapping class groups from algebraic geometry
[ Abstract ]
A presentation of the mapping class group of a genus g surface with one hole is due to Wajnryb with later improvements due to M. Matsumoto. The generators are Dehn twists defined by 2g+1 closed curves on the surface. The relations involving only two Dehn twists are the familiar Artin relations, we show that those involving more than two can be derived from algebro-geometry considerations.
A presentation of the mapping class group of a genus g surface with one hole is due to Wajnryb with later improvements due to M. Matsumoto. The generators are Dehn twists defined by 2g+1 closed curves on the surface. The relations involving only two Dehn twists are the familiar Artin relations, we show that those involving more than two can be derived from algebro-geometry considerations.
Number Theory Seminar
15:00-18:00 Room #117 (Graduate School of Math. Sci. Bldg.)
E. Lau (Univ. of Bielefeld) 15:00-15:45
Classification of p-divisible groups by displays and duality
T. Zink (Univ. of Bielefeld) 16:00-16:45
Applications of the theory of displays
E. Looijenga (Univ. of Utrecht) 17:00-18:00
Presentation of mapping class groups from algebraic geometry
E. Lau (Univ. of Bielefeld) 15:00-15:45
Classification of p-divisible groups by displays and duality
T. Zink (Univ. of Bielefeld) 16:00-16:45
Applications of the theory of displays
E. Looijenga (Univ. of Utrecht) 17:00-18:00
Presentation of mapping class groups from algebraic geometry
[ Abstract ]
A presentation of the mapping class group of a genus g surface with one hole is due to Wajnryb with later improvements due to M. Matsumoto. The generators are Dehn twists defined by 2g+1 closed curves on the surface. The relations involving only two Dehn twists are the familiar Artin relations, we show that those involving more than two can be derived from algebro-geometry considerations.
A presentation of the mapping class group of a genus g surface with one hole is due to Wajnryb with later improvements due to M. Matsumoto. The generators are Dehn twists defined by 2g+1 closed curves on the surface. The relations involving only two Dehn twists are the familiar Artin relations, we show that those involving more than two can be derived from algebro-geometry considerations.
2007/09/05
PDE Real Analysis Seminar
10:30-11:30 Room #056 (Graduate School of Math. Sci. Bldg.)
Reinhard Farwig (Darmstadt University of Technology)
Reguarity of Weak Solutions to the Navier-Stokes System beyond Serrin's Criterion
http://coe.math.sci.hokudai.ac.jp/sympo/pde_ra/index.html
Reinhard Farwig (Darmstadt University of Technology)
Reguarity of Weak Solutions to the Navier-Stokes System beyond Serrin's Criterion
[ Abstract ]
Consider a weak instationary solution $u(x,t)$ of the Navier-Stokes equations in a domain $\\Omega \\subset \\mathbb{R}^3$ in the sense of Leray-Hopf. As is well-known, $u$ is is unique and regular if $u\\in L^s(0,T;L^q(\\Omega))$ satisfies the {\\it strong energy inequality} and $s,q$ satisfy Serrin's condition $\\frac{2}{s} + \\frac{3}{q}=1$, $s>2,\\, q>3$. Now consider $u$ such that $$u\\in L^r(0,T;L^q(\\Omega))\\quad \\mbox{ where }\\quad \\frac{2}{r} + \\frac{3}{q}>1$$ and has a sufficiently small norm in $L^r(0,T;L^q(\\Omega))$. Then we will prove that $u$ is regular. Similar results of local rather than global type in space will be proved provided that $u$ satisfies the {\\it localized energy inequality}. Finally H\\"older continuity of the kinetic energy in time will imply regularity.
The proofs use local in time regularity results which are based on the {\\it theory of very weak solutions} and on uniqueness arguments for weak solutions.
[ Reference URL ]Consider a weak instationary solution $u(x,t)$ of the Navier-Stokes equations in a domain $\\Omega \\subset \\mathbb{R}^3$ in the sense of Leray-Hopf. As is well-known, $u$ is is unique and regular if $u\\in L^s(0,T;L^q(\\Omega))$ satisfies the {\\it strong energy inequality} and $s,q$ satisfy Serrin's condition $\\frac{2}{s} + \\frac{3}{q}=1$, $s>2,\\, q>3$. Now consider $u$ such that $$u\\in L^r(0,T;L^q(\\Omega))\\quad \\mbox{ where }\\quad \\frac{2}{r} + \\frac{3}{q}>1$$ and has a sufficiently small norm in $L^r(0,T;L^q(\\Omega))$. Then we will prove that $u$ is regular. Similar results of local rather than global type in space will be proved provided that $u$ satisfies the {\\it localized energy inequality}. Finally H\\"older continuity of the kinetic energy in time will imply regularity.
The proofs use local in time regularity results which are based on the {\\it theory of very weak solutions} and on uniqueness arguments for weak solutions.
http://coe.math.sci.hokudai.ac.jp/sympo/pde_ra/index.html
2007/08/29
Algebraic Geometry Seminar
17:00-18:00 Room #128 (Graduate School of Math. Sci. Bldg.)
Valery Alexeev (Georgia大学)
Computations on the moduli spaces of weighted log pairs
Valery Alexeev (Georgia大学)
Computations on the moduli spaces of weighted log pairs
2007/08/27
Number Theory Seminar
16:30-17:30 Room #002 (Graduate School of Math. Sci. Bldg.)
Steven Zucker (Johns Hopkins大学)
The reductive Borel-Serre motive
Steven Zucker (Johns Hopkins大学)
The reductive Borel-Serre motive
2007/08/02
Algebraic Geometry Seminar
16:30-18:00 Room #126 (Graduate School of Math. Sci. Bldg.)
De-Qi Zhang (Singapore大学)
Dynamics of automorphisms on algebraic varieties
De-Qi Zhang (Singapore大学)
Dynamics of automorphisms on algebraic varieties
[ Abstract ]
The building blocks of automorphisms / endomorphisms of compact varieties are determined --- an algebro geometric approach towards dynamics.
The building blocks of automorphisms / endomorphisms of compact varieties are determined --- an algebro geometric approach towards dynamics.
2007/07/25
Seminar on Probability and Statistics
16:20-17:30 Room #122 (Graduate School of Math. Sci. Bldg.)
小林 景 (統計数理研究所, 学振特別研究員)
大規模ランダム行列のスペクトル理論とデータ解析への応用(Review)
https://www.ms.u-tokyo.ac.jp/~kengok/statseminar/2007/05.html
小林 景 (統計数理研究所, 学振特別研究員)
大規模ランダム行列のスペクトル理論とデータ解析への応用(Review)
[ Abstract ]
The empirical spectral distribution of random matrices have been studied since Wigner's pioneering work on the semicircular law in the 1950's. The result says that the empirical spectral distribution of a symmetric matrix with i.i.d. random elements converges to the semicircular law as the size of the matrix becomes large. Though this result is beautiful in theory, its application has been limited to a few problems in nuclear physics and coding theory. The next breakthrough was the Marcenko-Pastur (M-P) law for the asymptotic spectral distribution of sample covariance matrices. The M-P law has found more applications, in particular high dimensional statistical data analysis, than the semicircular law.
In this talk I will first review these two significant results. Each of them has three completely different proofs. Then I will explain several other theoretical results that have mostly been studied this decade. Finally, I will present some of the applications of these results. This review is partly based on lectures on random matrices given by P. Bickel, N. El-Karoui and A. Guionnet, and also some seminars at UC Berkeley.
(# This talk is almost the same as the talk I gave at ISM on June 1.)
[ Reference URL ]The empirical spectral distribution of random matrices have been studied since Wigner's pioneering work on the semicircular law in the 1950's. The result says that the empirical spectral distribution of a symmetric matrix with i.i.d. random elements converges to the semicircular law as the size of the matrix becomes large. Though this result is beautiful in theory, its application has been limited to a few problems in nuclear physics and coding theory. The next breakthrough was the Marcenko-Pastur (M-P) law for the asymptotic spectral distribution of sample covariance matrices. The M-P law has found more applications, in particular high dimensional statistical data analysis, than the semicircular law.
In this talk I will first review these two significant results. Each of them has three completely different proofs. Then I will explain several other theoretical results that have mostly been studied this decade. Finally, I will present some of the applications of these results. This review is partly based on lectures on random matrices given by P. Bickel, N. El-Karoui and A. Guionnet, and also some seminars at UC Berkeley.
(# This talk is almost the same as the talk I gave at ISM on June 1.)
https://www.ms.u-tokyo.ac.jp/~kengok/statseminar/2007/05.html
2007/07/20
Colloquium
16:30-17:30 Room #123 (Graduate School of Math. Sci. Bldg.)
和達三樹 (東京理科大学理学部物理学科)
ソリトン物理はおもしろい---スピノル型ボーズ・アインシュタイン凝縮体におけるソリトン
和達三樹 (東京理科大学理学部物理学科)
ソリトン物理はおもしろい---スピノル型ボーズ・アインシュタイン凝縮体におけるソリトン
2007/07/19
Seminar for Mathematical Past of Asia
17:00-18:30 Room #123 (Graduate School of Math. Sci. Bldg.)
李 佳女華 (東京大学大学院総合文化研究科)
幕末・明治初期の日本における西洋数学の導入と漢訳西洋数学書籍
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~kawazumi/asia.html
李 佳女華 (東京大学大学院総合文化研究科)
幕末・明治初期の日本における西洋数学の導入と漢訳西洋数学書籍
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~kawazumi/asia.html
Operator Algebra Seminars
16:30-18:00 Room #128 (Graduate School of Math. Sci. Bldg.)
小沢登高 (東大数理)
On a class of II$_1$ factors with at most one Cartan subalgebra
小沢登高 (東大数理)
On a class of II$_1$ factors with at most one Cartan subalgebra
2007/07/18
Number Theory Seminar
16:30-17:30 Room #117 (Graduate School of Math. Sci. Bldg.)
梶原 健 (横浜国立大学)
Tropical toric varieties
梶原 健 (横浜国立大学)
Tropical toric varieties
Seminar on Probability and Statistics
16:20-17:30 Room #122 (Graduate School of Math. Sci. Bldg.)
増田 弘毅 (九州大学大学院数理学研究院)
Easy full-joint estimators of stable processes
https://www.ms.u-tokyo.ac.jp/~kengok/statseminar/2007/04.html
増田 弘毅 (九州大学大学院数理学研究院)
Easy full-joint estimators of stable processes
[ Abstract ]
安定レヴィ過程からの高頻度観測に基づいた同時推定に関しては,尤度比確率場の漸近挙動は安易に二次項の観測情報量まで見ただけでは解明されず,最尤推定量の典型的な“良い漸近挙動”が保証されないことが分かっている.本発表では,標本メディアンおよび標本メディアンのプラグイン型統計量の漸近挙動に基づき,モデルに入る全パラメータの同時推定を可能とする計算容易な推定量の構成法を紹介し,正則な漸近共分散行列を有する漸近正規性を導出する.推定量の有限標本での挙動を数値実験で検証する.時間があれば,非対称安定レヴィ過程の場合に関して分かっている事柄についても触れる.
[ Reference URL ]安定レヴィ過程からの高頻度観測に基づいた同時推定に関しては,尤度比確率場の漸近挙動は安易に二次項の観測情報量まで見ただけでは解明されず,最尤推定量の典型的な“良い漸近挙動”が保証されないことが分かっている.本発表では,標本メディアンおよび標本メディアンのプラグイン型統計量の漸近挙動に基づき,モデルに入る全パラメータの同時推定を可能とする計算容易な推定量の構成法を紹介し,正則な漸近共分散行列を有する漸近正規性を導出する.推定量の有限標本での挙動を数値実験で検証する.時間があれば,非対称安定レヴィ過程の場合に関して分かっている事柄についても触れる.
https://www.ms.u-tokyo.ac.jp/~kengok/statseminar/2007/04.html
2007/07/17
Tuesday Seminar on Topology
16:30-18:00 Room #056 (Graduate School of Math. Sci. Bldg.)
松村 朝雄 (東京大学大学院数理科学研究科)
Orbifold Cohomology of Wreath Product Orbifolds and
Cohomological HyperKahler Resolution Conjecture
松村 朝雄 (東京大学大学院数理科学研究科)
Orbifold Cohomology of Wreath Product Orbifolds and
Cohomological HyperKahler Resolution Conjecture
[ Abstract ]
Chen-Ruan orbifold cohomology ring was introduced in 2000 as
the degree zero genus zero orbifold Gromov-Witten invariants with
three marked points. We will review its construction in the case of
global quotient orbifolds, following Fantechi-Gottsche and
Jarvis-Kaufmann-Kimura. We will describe the orbifold cohomology of
wreath product orbifolds and explain its application to Ruan's
cohomological hyperKahler resolution conjecture.
Chen-Ruan orbifold cohomology ring was introduced in 2000 as
the degree zero genus zero orbifold Gromov-Witten invariants with
three marked points. We will review its construction in the case of
global quotient orbifolds, following Fantechi-Gottsche and
Jarvis-Kaufmann-Kimura. We will describe the orbifold cohomology of
wreath product orbifolds and explain its application to Ruan's
cohomological hyperKahler resolution conjecture.
2007/07/12
Operator Algebra Seminars
16:30-18:00 Room #128 (Graduate School of Math. Sci. Bldg.)
酒匂宏樹 (東大数理)
Normalizers of MASAs and irreducible subfactors
酒匂宏樹 (東大数理)
Normalizers of MASAs and irreducible subfactors
2007/07/11
Number Theory Seminar
16:30-17:30 Room #117 (Graduate School of Math. Sci. Bldg.)
Andreas Rosenschon (University of Alberta)
Algebraic cycles on products of elliptic curves over p-adic fields
Andreas Rosenschon (University of Alberta)
Algebraic cycles on products of elliptic curves over p-adic fields
2007/07/10
Tuesday Seminar on Topology
16:30-18:00 Room #056 (Graduate School of Math. Sci. Bldg.)
Danny C. Calegari (California Institute of Technology)
Combable functions, quasimorphisms, and the central limit theorem
(joint with Koji Fujiwara)
Danny C. Calegari (California Institute of Technology)
Combable functions, quasimorphisms, and the central limit theorem
(joint with Koji Fujiwara)
[ Abstract ]
Quasimorphisms on groups are dual to stable commutator length,
and detect extremal phenomena in topology and dynamics. In typical groups
(even in a free group) stable commutator length is very difficult to
calculate, because the space of quasimorphisms is too large to study
directly without adding more structure.
In this talk, we show that a large class of quasimorphisms - the so-called
"counting quasimorphisms" on word-hyperbolic groups - can be effectively
described using simple machines called finite state automata. From this,
and from the ergodic theory of finite directed graphs, one can deduce a
number of properties about the statistical distribution of the values of a
counting quasimorphism on elements of the group.
Quasimorphisms on groups are dual to stable commutator length,
and detect extremal phenomena in topology and dynamics. In typical groups
(even in a free group) stable commutator length is very difficult to
calculate, because the space of quasimorphisms is too large to study
directly without adding more structure.
In this talk, we show that a large class of quasimorphisms - the so-called
"counting quasimorphisms" on word-hyperbolic groups - can be effectively
described using simple machines called finite state automata. From this,
and from the ergodic theory of finite directed graphs, one can deduce a
number of properties about the statistical distribution of the values of a
counting quasimorphism on elements of the group.
2007/07/09
Seminar on Geometric Complex Analysis
10:30-12:00 Room #128 (Graduate School of Math. Sci. Bldg.)
今野宏 (東京大学)
Geometry of hyperkahler quotients
今野宏 (東京大学)
Geometry of hyperkahler quotients
2007/07/06
Seminar on Probability and Statistics
15:00-16:10 Room #122 (Graduate School of Math. Sci. Bldg.)
Arturo KOHATSU-HIGA (大阪大学大学院基礎工学研究科)
Estimating multidimensional densities through the Malliavin-Thalmaier formula
https://www.ms.u-tokyo.ac.jp/~kengok/statseminar/2007/03.html
Arturo KOHATSU-HIGA (大阪大学大学院基礎工学研究科)
Estimating multidimensional densities through the Malliavin-Thalmaier formula
[ Abstract ]
TBA
[ Reference URL ]TBA
https://www.ms.u-tokyo.ac.jp/~kengok/statseminar/2007/03.html
2007/07/05
Operator Algebra Seminars
16:30-18:00 Room #128 (Graduate School of Math. Sci. Bldg.)
Rolf Dyre Svegstrup (東大数理)
Factorization in $C^*$-Algebras
Rolf Dyre Svegstrup (東大数理)
Factorization in $C^*$-Algebras
2007/07/04
PDE Real Analysis Seminar
10:30-11:30 Room #056 (Graduate School of Math. Sci. Bldg.)
Lars Diening (Universitat Freiburg)
The Lipschitz truncation method
http://coe.math.sci.hokudai.ac.jp/sympo/pde_ra/index.html
Lars Diening (Universitat Freiburg)
The Lipschitz truncation method
[ Abstract ]
We study the existence of weak solutions to the incompressible $p$-Navier Stokes equations. This system can be used to describe the flow of honey, ketchup, blood, suspensions, polymers, and glaciers. We are interested in small values of $p$, where the method of monotone operators fails. We establish weak solutions by means of the Lipschitz truncation technique, where Sobolev Functions are approximated by Lipschitz functions in a special way. We apply the technique also to electrorheological fluids, where the exponent $p$ depends on the electric field.
[ Reference URL ]We study the existence of weak solutions to the incompressible $p$-Navier Stokes equations. This system can be used to describe the flow of honey, ketchup, blood, suspensions, polymers, and glaciers. We are interested in small values of $p$, where the method of monotone operators fails. We establish weak solutions by means of the Lipschitz truncation technique, where Sobolev Functions are approximated by Lipschitz functions in a special way. We apply the technique also to electrorheological fluids, where the exponent $p$ depends on the electric field.
http://coe.math.sci.hokudai.ac.jp/sympo/pde_ra/index.html
Geometry Seminar
14:40-18:00 Room #056 (Graduate School of Math. Sci. Bldg.)
野田尚廣 (名古屋大学大学院多元数理科学研究科) 14:40-16:10
A Special Lagrangian Fibration in the TAUB-NUT Space
Symmetries in generalized complex geometry
野田尚廣 (名古屋大学大学院多元数理科学研究科) 14:40-16:10
A Special Lagrangian Fibration in the TAUB-NUT Space
[ Abstract ]
この講演では, Taub-NUT space における special Lagrangian fibration の具体的構成について述べるつもりである.Taub-NUT space は複素多様体としては二次元複素空間であるが,計量が通常と異なり完備で非平坦なリッチ平坦計量をもつ Hyper-Kahler 多様体として特徴づけられる.この空間の special Lagrangian fibration が,Ionel-Min Oo の手法を用いることで具体的に構成できることを見る.
新田泰文 (大阪大学大学院理学研究科) 16:30-18:00この講演では, Taub-NUT space における special Lagrangian fibration の具体的構成について述べるつもりである.Taub-NUT space は複素多様体としては二次元複素空間であるが,計量が通常と異なり完備で非平坦なリッチ平坦計量をもつ Hyper-Kahler 多様体として特徴づけられる.この空間の special Lagrangian fibration が,Ionel-Min Oo の手法を用いることで具体的に構成できることを見る.
Symmetries in generalized complex geometry
[ Abstract ]
一般化された複素構造という新しい幾何構造についてお話しします.これは複素構造とシンプレクティック構造を自然に含む非常に大きな枠組みで Hitchin が導入し,Gualtieri らによって複素幾何学的,シンプレクティック幾何学的な視点から盛んに研究されています.本講演では一般化された複素多様体への群作用について,シンプレクティック幾何的立場から解説いたします.一般化された複素多様体への Hamiltonian action という概念を導入し,その群作用に関する簡約定理や,一般化された運動量写像に関する凸性について説明します.
一般化された複素構造という新しい幾何構造についてお話しします.これは複素構造とシンプレクティック構造を自然に含む非常に大きな枠組みで Hitchin が導入し,Gualtieri らによって複素幾何学的,シンプレクティック幾何学的な視点から盛んに研究されています.本講演では一般化された複素多様体への群作用について,シンプレクティック幾何的立場から解説いたします.一般化された複素多様体への Hamiltonian action という概念を導入し,その群作用に関する簡約定理や,一般化された運動量写像に関する凸性について説明します.
2007/07/03
Tuesday Seminar on Topology
16:30-18:00 Room #056 (Graduate School of Math. Sci. Bldg.)
金 英子 (東京工業大学情報理工学研究科)
Two invariants of pseudo--Anosov mapping classes: hyperbolic volume vs dilatation
(joint work with Mitsuhiko Takasawa)
金 英子 (東京工業大学情報理工学研究科)
Two invariants of pseudo--Anosov mapping classes: hyperbolic volume vs dilatation
(joint work with Mitsuhiko Takasawa)
[ Abstract ]
We concern two invariants of pseudo-Anosov mapping classes.
One is the dilatation of pseudo--Anosov maps and the other is the volume
of mapping tori. To study how two invariants are related, fixing a surface
we represent a mapping class by using the standard generator set and compute
these two for all pseudo--Anosov mapping classes with up to some word length.
In the talk, we observe two properties:
(1) The ratio of the topological entropy (i.e. logarithm of the dilatation) to
the volume is bounded from below by some positive constant which only
depends on the surface.
(2) The conjugacy class having the minimal dilatation reaches the minimal volume.
On the observation (1), in case of the mapping class group of a once--punctured
torus, we give a concrete lower bound of the ratio.
We concern two invariants of pseudo-Anosov mapping classes.
One is the dilatation of pseudo--Anosov maps and the other is the volume
of mapping tori. To study how two invariants are related, fixing a surface
we represent a mapping class by using the standard generator set and compute
these two for all pseudo--Anosov mapping classes with up to some word length.
In the talk, we observe two properties:
(1) The ratio of the topological entropy (i.e. logarithm of the dilatation) to
the volume is bounded from below by some positive constant which only
depends on the surface.
(2) The conjugacy class having the minimal dilatation reaches the minimal volume.
On the observation (1), in case of the mapping class group of a once--punctured
torus, we give a concrete lower bound of the ratio.
2007/07/02
Seminar on Geometric Complex Analysis
10:30-12:00 Room #128 (Graduate School of Math. Sci. Bldg.)
飯田修一 (東大数理)
On the Meyer function for theta divisors
飯田修一 (東大数理)
On the Meyer function for theta divisors
2007/06/29
Lie Groups and Representation Theory
15:30-17:45 Room #122 (Graduate School of Math. Sci. Bldg.)
Salem Ben Said (Nancy大)
On the theory of Bessel functions associated with root systems
http://akagi.ms.u-tokyo.ac.jp/seminar.html
Salem Ben Said (Nancy大)
On the theory of Bessel functions associated with root systems
[ Abstract ]
The theory of spherical functions on Riemannian symmetric spaces G/K and on non-compactly causal symmetric spaces G/H has a long and rich history. In this talk we will show how one can use a limit transition approach to obtain generalized Bessel functions on flat symmetric spaces via the spherical functions. A similar approach can be applied to the theory of Heckman-Opdam hypergeometric functions to investigate generalized Bessel functions related to arbitrary root system. We conclude the talk by giving a conjecture about the nature and order of the singularities of the Bessel functions related to non-compactly causal symmetric spaces.
[ Reference URL ]The theory of spherical functions on Riemannian symmetric spaces G/K and on non-compactly causal symmetric spaces G/H has a long and rich history. In this talk we will show how one can use a limit transition approach to obtain generalized Bessel functions on flat symmetric spaces via the spherical functions. A similar approach can be applied to the theory of Heckman-Opdam hypergeometric functions to investigate generalized Bessel functions related to arbitrary root system. We conclude the talk by giving a conjecture about the nature and order of the singularities of the Bessel functions related to non-compactly causal symmetric spaces.
http://akagi.ms.u-tokyo.ac.jp/seminar.html
2007/06/28
Operator Algebra Seminars
16:30-18:00 Room #128 (Graduate School of Math. Sci. Bldg.)
谷本溶 (東大数理)
A new construction of causal nets of operator algebras
谷本溶 (東大数理)
A new construction of causal nets of operator algebras
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