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MATSUZAWA Yasumichi

Academic OrganizationAcademic Assembly School of Humanities and Social Sciences Institute of EducationTEL
Education and Research OrganizationFaculty of Education Mathematics EducationFAX
PositionAssociate professorMail Address
Address6-Ro, Nishinagano, Nagano City 380-8544Web sitehttps://sites.google.com/site/yasumichimatsuzawa/jp

Profile

Research Field
Analysis
Academic Societies
Academic Societies
The Mathematical Society of Japan

Research

Books, Articles, etc.
Articles
Large scale geometry of Banach-Lie groups
Transaction of the American Mathematical Society,375(4):2827-2881 2022(Apr.)
Author:Hiroshi Ando, Michal Doucha, Yasumichi Matsuzawa


Explicit Diagonalization of Pair Interaction Models
Analysis and Mathematical Physics,11 2021(Feb. 08)
Author:Yasumichi Matsuzawa, Itaru Sasaki, Kyosuke Usami


Polish groups of unitaries
Studia Mathematica,257:25-70 2021
Author:Ando Hiroshi, Yasumichi Matsuzawa


An index theorem for split-step quantum walks
Quantum Information Processing 2020(Jul. 03)
Author:Yasumichi Matsuzawa


Time operators for quantum walks
Letters in Mathematical Physics 2020(Jun. 20)
Author:Daiju Funakawa, Yasumichi Matsuzawa, Itaru Sasaki, Akito Suzuki, Noriaki Teranishi


Unitarizability, Maurey--Nikishin factorization, and Polish groups of finite type
Journal für die reine und angewandte Mathematik 2020(Jan. 01)
Author:Hiroshi Ando, Yasumichi Matsuzawa, Andreas Thom, Asger Törnquist


When does the Weyl-von Neumann Theorem hold?
Bulletin of the London Mathematical Society 2017(Aug.)
Author:Hiroshi Ando and Yasumichi Matsuzawa


Non-commutative hypergroup of order five
Journal of Algebra and Its Application 2017(Jul.)
Author:Yasumichi Matsuzawa, Hiromichi Ohno, Akito Suzuki, Tatsuya Tsurii, Satoe Yamanaka


Weyl-von Neumann Theorem and Borel Complexity of Unitary Equivalence Modulo Compacts of Self-Adjoint Operators
The Royal Society of Edinburgh Proceedings A (Mathematics),145:1115-1144 2015(Dec.)
Author:Hiroshi Ando, Yasumichi Matsuzawa


On Borel equivalence relations related to self-adjoint operators
Journal of Operator Theory,74(1):183-194 2015
Author:Hiroshi Ando, Yasumichi Matsuzawa


On Popa's Embedding Problem
Soryushiron Kenkyu,13:179-204 2012(Dec. 02)
Author:Hiroshi Ando, Matsuzawa Yasumichi


On Polish Groups of Finite Type
Publications of the ResearchInstitute for Mathematical Sciences,48巻:389-408 2012(Jun.)
Author:Hiroshi Ando, Yasumichi Matsuzawa


Lie Group-Lie Algebra Correspondences of Unitary Groups in Finite von Neumann Algebras
Hokkaido Mathematical Journal,41巻:31—99 2012(Feb.)
Author:Hiroshi Ando, Yasumichi Matsuzawa


Strong time operators associated with generalized Hamiltonians 
Letters in Mathematical Physics,87巻:115—123 2008(Dec.)
Author:Fumio Hiroshima, Sotaro Kuribayashi, Yasumichi Matsuzawa


Time Operators of a Hamiltonian with Purely Discrete Spectrum
Reviews in Mathematical Physics,20巻:951-978 2008(Sep.)
Author:Asao Arai, Yasumichi Matsuzawa


Construction of a Weyl Representation from a Weak Weyl Representation of the Canonical Commutation Relation
Letters in Mathematical Physics,83巻 :201—211 2008(Jan.)
Author:Asao Arai, Yasumichi Matsuzawa


Presentations
The Witten index of the split-step quantum walk
Workshop: Unitary operators: spectral and topological properties 2020(Sep. 29)
Presenter:Yasumichi Matsuzawa


Polish groups related to the unitary group of a Hilbert space
Workshop on Analysis and Group Theory 2018(Sep. 06)
Presenter:Yasumichi Matsuzawa


Popa’s embedding problem
Seminar "Algebra and Geometry" in Leipzig university 2011( 1月)
Presenter:Yasumichi Matsuzawa


Lie Group-Lie Algebra Correspondences of Unitary Groups in Finite von Neumann Algebras
Seminar "Algebra and Geometry" in Leipzig university 2010
Presenter:Yasumichi Matsuzawa


MISC
An Examination of Discipline-Based Epistemological Approaches in Special Needs Education (for Children with Intellectual Disabilities): From Graduate School Classes in Collaboration with Experts in Various Subject Fields
信州大学教育学部附属次世代型学び研究開発センター紀要 教育実践研究,20:149 2021(Dec. 24)
Author:宮地弘一郎,下山真衣,永松裕希,上村惠津子,奥村真依子,原洋平,桐原礼,志村佳名子,伊藤冬樹,間島秀徳,松澤泰道,藤田育郎,杉山俊一郎,八木雄一郎,小松孝太郎

Education

Lectures
2013 , 環論
2013 , 代数学続論
2013 , 微分方程式論
2013 , 代数学特論
2013 , 数学教育総論
2013 , 群論
2013 , 代数学基礎
2013 , 代数学特別演習
2013 , 教職実践演習E
2013 , 卒業研究
2013 , 代数学演習
2012 , 代数学基礎
2012 , 群論
2012 , 環論
2012 , 体論