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MATSUZAWA Yasumichi|Shinshu University Researcher List

MATSUZAWA Yasumichi

Academic Assembly School of Humanities and Social Sciences Institute of Education

Faculty of Education Mathematics Education 

Associate professor 

Researcher Information

Field Of Study

  • Basic analysis, Analysis
Research activity information

Paper

  • The Witten index for one-dimensional split-step quantum walks under the non-Fredholm condition
    Yasumichi Matsuzawa, Akito Suzuki, Yohei Tanaka, Noriaki Teranishi, Kazuyuki Wada
    Reviews in Mathematical Physics, 35(6), 23500, Jun. 2023, Refereed
  • Large scale geometry of Banach-Lie groups
    Hiroshi Ando, Michal Doucha, Yasumichi Matsuzawa
    Transaction of the American Mathematical Society, 375(4), 2827-2881, Apr. 2022, Refereed
  • Explicit diagonalization of pair interaction models
    Yasumichi Matsuzawa, Itaru Sasaki, Kyosuke Usami
    Analysis and Mathematical Physics, 11, 08 Feb. 2021, Refereed
  • Polish groups of unitaries
    Ando Hiroshi, Yasumichi Matsuzawa
    Studia Mathematica, 257, 25-70, 2021, Refereed
  • An index theorem for split-step quantum walks
    Yasumichi Matsuzawa
    Quantum Information Processing, 03 Jul. 2020
  • Time operators for quantum walks
    Daiju Funakawa, Yasumichi Matsuzawa, Itaru Sasaki, Akito Suzuki, Noriaki Teranishi
    LETTERS IN MATHEMATICAL PHYSICS, 20 Jun. 2020
  • Unitarizability, Maurey--Nikishin factorization, and Polish groups of finite type
    Hiroshi Ando, Yasumichi Matsuzawa, Andreas Thom, Asger Törnquist
    Journal für die reine und angewandte Mathematik, 01 Jan. 2020, Refereed
  • When does the Weyl-von Neumann Theorem hold?
    Hiroshi Ando and Yasumichi Matsuzawa
    Bulletin of the London Mathematical Society, Aug. 2017, Refereed
  • Non-commutative hypergroup of order five
    Yasumichi Matsuzawa, Hiromichi Ohno, Akito Suzuki, Tatsuya Tsurii, Satoe Yamanaka
    Journal of Algebra and Its Application, Jul. 2017, Refereed
  • Weyl-von Neumann Theorem and Borel Complexity of Unitary Equivalence Modulo Compacts of Self-Adjoint Operators
    Hiroshi Ando, Yasumichi Matsuzawa
    The Royal Society of Edinburgh Proceedings A (Mathematics), 145, 1115-1144, Dec. 2015, Refereed
  • On Borel equivalence relations related to self-adjoint operators
    Hiroshi Ando, Yasumichi Matsuzawa
    Journal of Operator Theory, 74(1), 183-194, 2015, Refereed
  • On Popa's Embedding Problem
    Hiroshi Ando, Matsuzawa Yasumichi
    Soryushiron Kenkyu, 13, 179-204, 02 Dec. 2012
  • On Polish Groups of Finite Type
    Hiroshi Ando, Yasumichi Matsuzawa
    Publications of the ResearchInstitute for Mathematical Sciences, 48巻, 389-408, Jun. 2012, Refereed
  • Lie Group-Lie Algebra Correspondences of Unitary Groups in Finite von Neumann Algebras
    Hiroshi Ando, Yasumichi Matsuzawa
    Hokkaido Mathematical Journal, 41巻, 31—99, Feb. 2012, Refereed
  • Strong time operators associated with generalized Hamiltonians 
    Fumio Hiroshima, Sotaro Kuribayashi, Yasumichi Matsuzawa
    LETTERS IN MATHEMATICAL PHYSICS, 87巻, 115—123, Dec. 2008, Refereed
  • Time Operators of a Hamiltonian with Purely Discrete Spectrum
    Asao Arai, Yasumichi Matsuzawa
    Reviews in Mathematical Physics, 20巻, 951-978, Sep. 2008, Refereed
  • Construction of a Weyl Representation from a Weak Weyl Representation of the Canonical Commutation Relation
    Asao Arai, Yasumichi Matsuzawa
    LETTERS IN MATHEMATICAL PHYSICS, 83巻 , 201—211, Jan. 2008, Refereed

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
    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
    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 - 158, 24 Dec. 2021

Lectures, oral presentations, etc.

  • 対相互作用模型の散乱理論について
    佐々木格,松澤泰道,泉真之介,井村航太
    2023年度日本数学会秋季総合分科会, 20 Sep. 2023
  • The Witten index of the split-step quantum walk
    Yasumichi Matsuzawa
    Workshop: Unitary operators: spectral and topological properties, 29 Sep. 2020, Invited
  • Polish groups related to the unitary group of a Hilbert space
    Yasumichi Matsuzawa
    Workshop on Analysis and Group Theory, 06 Sep. 2018, Invited
  • Popa’s embedding problem
    Yasumichi Matsuzawa
    Seminar "Algebra and Geometry" in Leipzig university, Nov. 2011
  • Lie Group-Lie Algebra Correspondences of Unitary Groups in Finite von Neumann Algebras
    Yasumichi Matsuzawa
    Seminar "Algebra and Geometry" in Leipzig university, Jun. 2010

Courses

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

Affiliated academic society

  • The Mathematical Society of Japan