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Dive into the research topics where Naoto Komuro is active.

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Featured researches published by Naoto Komuro.


Applied Mathematics and Computation | 2011

Extremal structure of absolute normalized norms on R2 and the James constant

Naoto Komuro; Kichi-Suke Saito; Ken-Ichi Mitani

Abstract We denote by AN2 the set of all absolute normalized norms on R 2 . The set AN2 has a convex structure with respect to the usual operation. In this paper we calculate the James constant of ( R 2 , ‖ · ‖ ) when ∥·∥ is an extreme point of AN2.


Journal of Mathematical Analysis and Applications | 2010

Extremal structure of the set of absolute norms on R2 and the von Neumann–Jordan constant

Naoto Komuro; Kichi-Suke Saito; Ken-Ichi Mitani


Mathematische Nachrichten | 2016

On the class of Banach spaces with James constant 2

Naoto Komuro; Kichi-Suke Saito; Ryotaro Tanaka


Journal of Mathematical Inequalities | 2013

ANOTHER APPROACH TO BECKNER'S INEQUALITY

Ryotaro Tanaka; K Ichi-Suke Saito; Naoto Komuro


Journal of Mathematical Analysis and Applications | 2018

Symmetric points for (strong) Birkhoff orthogonality in von Neumann algebras with applications to preserver problems

Naoto Komuro; Kichi-Suke Saito; Ryotaro Tanaka


Mathematical Inequalities & Applications | 2017

On the class of Banach spaces with James constant √2, III

Naoto Komuro; Kichi-Suke Saito; Ryotaro Tanaka


Mediterranean Journal of Mathematics | 2016

On the Class of Banach Spaces with James Constant {\sqrt{2}} : Part II

Naoto Komuro; Kichi-Suke Saito; Ryotaro Tanaka


Tokyo Journal of Mathematics | 2018

A Sufficient Condition That

Naoto Komuro; Kichi-Suke Saito; Ryotaro Tanaka


Bulletin of The Australian Mathematical Society | 2018

J(X^*)=J(X)

Naoto Komuro; Kichi-Suke Saito; Ryotaro Tanaka


Mediterranean Journal of Mathematics | 2017

Holds for a Banach Space

Naoto Komuro; Ken-Ichi Mitani; Kichi-Suke Saito; Ryotaro Tanaka; Yukino Tomizawa

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Ken-Ichi Mitani

Niigata Institute of Technology

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