VOL. 26 · NO. 2 | 2015
 
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Front Matter
Nihonkai Math. J. 26 (2), (2015)
No abstract available
Nihonkai Math. J. 26 (2), (2015)
No abstract available
Nihonkai Math. J. 26 (2), (2015)
No abstract available
Articles
Tamotsu Izumida
Nihonkai Math. J. 26 (2), 75-83, (2015)
KEYWORDS: Generalized triangle inequality, ‎absolute norm, $\psi$-direct sums, generalized $\ell_p$-spaces, 49J53, ‎54C60‎, 90C29
Osamu Hatori
Nihonkai Math. J. 26 (2), 85-90, (2015)
KEYWORDS: The theorem of Fuglede-Putnam, normal elements, commutativity, 47B15, 15A27
Satomi Murakami, Hiroki Ohwa
Nihonkai Math. J. 26 (2), 91-101, (2015)
KEYWORDS: discontinuous maps, Periodic points, iteration, 26A65, 26A18
Kazuhiro Konno
Nihonkai Math. J. 26 (2), 103-120, (2015)
KEYWORDS: fibred surface, multiple fiber, gonality, 14D06, 14H10, 14J29
Osamu Hatori
Nihonkai Math. J. 26 (2), 121-125, (2015)
KEYWORDS: isometry, sphere, algebra of matrices, ‎unitarily invariant norm, strictly convex norm, 15A60, 15A86, 46B04
Matteo Dalla Riva, Sin-Ei Takahasi
Nihonkai Math. J. 26 (2), 127-134, (2015)
KEYWORDS: semigroup, Homomorphism, anti-homomorphism, inversion map, absorbing element, 20M15, 20M10
Yutaka Saito, Tamaki Tanaka
Nihonkai Math. J. 26 (2), 135-144, (2015)
KEYWORDS: Fan-Takahashi minimax inequality, Ricceri's theorem, scalarization method, set-relations, set-valued map, 49J53, ‎54C60‎, 90C29
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