Researcher Database

（Last updated : 2022-12-28 22:44:51）

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.	2022	Interpolation functions and inequalities │ Linear and Multilinear Algebras │ 70 (20),pp.4897-4906 (Co-authored)
2.	2022	On operators which attain their norm on every reducing subspace │ Ann. Funct. Anal. │ 13 (Co-authored)
3.	2022	Rokhlin Property for Group Actions on Hilbert $C^*$-modules │ Southeast Asian Bull. Math. │ 46,pp.151-171 (Co-authored)
4.	2021	On a subclass of norm attaining operators │ 87 (1-2),pp.247-263 (Co-authored)
5.	2021	The erratum: The Jiang-Su absorption for inclusion of C*-algebras │ Canad. Math. J. │ 73 (1),pp.293-295 (Co-authored)
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Academic conference presentation
1.	2022/06/04	On a class of K-entanglement witnesses (International Workshop on Matrix Analysis and Its Applications)
2.	2022/05/20	Factorization property of positive maps on C*-algebras and its applications (コロキウム)
3.	2022/04/07	Factorization property of positive maps on C*-algebras (ILAS Special Session on Matrix Analysis and Applications in Virtual Joint Mathematics Meetings)
4.	2021/10/16	Interpolation functions and inequalities (First Sibau-Nu workshop on Matrix Analysis and Linear Algebra)
5.	2021/09/23	On a subclass of norm attaining operators (Order Analysis and Related Problems of Mathematical Modelling, XVI. Operator Theory and Differential Equations.)
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