Researcher Database

（Last updated : 2024-04-27 22:07:25）　

OSAKA Hiroyuki

Department / Course College of Science and Engineering Department of Mathematical Sciences

Title / Position Professor

Other Affiliations
1.	Graduate School of Science and Engineering
2.	Research Organization of Social Science (BKC) Research Center for Finance

Academic background
1.	～1992/03	Doctorial Course │ Mathematics │ Graduate School, Division of Science │ Tokyo Metropolitan University │ Completed Doctor of Science

Research activities
1.	1988/04 ～	The Mathematical Society of Japan

Research summary
Study on Simple C-algebra Classification Theorem Study on the classification problem of C-algebra, a structure of the multiplication of matrix algebras and function algebras, using the K-theory, the C-index theory, and the noncommutative dimension theory (Banach algebra version of dimension theory)

Present specialized field
Larger-area Analysis (Keyword：analysis (theory of operator algebras))

Books
1.	2022/08	Matrix Inequalities and Characterizations of Operator Monotone Functions │ Operator and Norm Inequalities and Related Topics │ ,pp.97-130 (Co-authored)
2.	2022/08	Perspectives, Means and their Inequalities │ Operator and Norm Inequalities and Related Topics │ ,pp.131-178 (Co-authored)

Papers
1.	2023	Stability of AN-operators under functional Calculus │ Analysis Math. │ 49 (3),pp.825-839 (Co-authored)
2.	2023	Stability of AN-property for the induced Aluthge transformations │ Linear Alg. Appl. │ 678,pp.206-226 (Co-authored)
3.	2022	Interpolation functions and inequalities │ Linear and Multilinear Algebras │ 70 (20),pp.4897-4906 (Co-authored)
4.	2022	On operators which attain their norm on every reducing subspace │ Ann. Funct. Anal. │ 13 (Co-authored)
5.	2022	Rokhlin Property for Group Actions on Hilbert $C^*$-modules │ Southeast Asian Bull. Math. │ 46,pp.151-171 (Co-authored)
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Academic conference presentation
1.	2023/11/07	Revisit the Powers-Stormer's inequality (Recent Progress in Operator Theory and its Applications, RIMS,)
2.	2023/07/08	Factorization property of positive maps on C*-algebras and its applications (International workshop on matrix anaysis and its applications)
3.	2023/06/19	Factorization property of positive maps on C*-algebras and its applications (Mathematical Structures in Quantum Mechanics, University of Gdansk)
4.	2023/03/17	A limit of induced Aluthuge transformation for centered operators (Mathematical Society of Japan 2022 Annual Meeting)
5.	2023/03/17	On a class of $K$-entanglement witnesses (Mathematical Society of Japan 2022 Annual Meeting)
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Winning science prize
1.	2022/01/18	Annals Funct. Annal The 2022-Best Paper Award Winner (Tracially sequentially-split -homomorphisms between C-algebras, Annals Funct. Annal, 12 (2021), no. 2, Paper No. 37, 23pp.)

Subject
1.	特殊講義