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1

A new interpretation of Jensen's inequality and geometric properties ofφ-means

Yasuo Nakasuji, Keisaku Kumahara, Sin-Ei Takahasi

Journal:

Journal of Inequalities and Applications

Year:

2011

Language:

english

File:

PDF, 230 KB

english, 2011

2

A Note on the Largest Regular Subalgebra of a Banach Algebra

Jyunji Inoue and Sin-Ei Takahasi

Journal:

Proceedings of the American Mathematical Society

Year:

1992

Language:

english

File:

PDF, 94 KB

english, 1992

3

Continuous semigroup structures on\(\mathbb {R}\), cancellative semigroups and bands

Kobayashi, Yuji, Nakasuji, Yasuo, Takahasi, Sin-Ei, Tsukada, Makoto

Journal:

Semigroup Forum

Year:

2015

Language:

english

File:

PDF, 210 KB

english, 2015

4

Commutative Banach Algebras Which Satisfy a Bochner-Schoenberg-Eberlein-Type Theorem

Takahasi, Sin-Ei, Hatori, Osamu

Journal:

Proceedings of the American Mathematical Society

Year:

1990

Language:

english

File:

PDF, 359 KB

english, 1990

5

Dixmier's Representation Theorem of Central Double Centralizers on Banach Algebras

Sin-Ei Takahasi

Journal:

Transactions of the American Mathematical Society

Year:

1979

Language:

english

File:

PDF, 396 KB

english, 1979

6

A note on the largest regular subalgebra of a Banach algebra

Inoue, Jyunji, Takahasi, Sin-ei

Journal:

Proceedings of the American Mathematical Society

Year:

1992

Language:

english

File:

PDF, 168 KB

english, 1992

7

Commutative Banach algebras which satisfy a Bochner-Schoenberg-Eberlein type-theorem

Takahasi, Sin-ei, Hatori, Osamu

Journal:

Proceedings of the American Mathematical Society

Year:

1990

Language:

english

File:

PDF, 845 KB

english, 1990

8

On the Hyers-Ulam Stability of Real Continuous Function Valued Differentiable Map

MIURA, Takeshi, TAKAHASI, Sin-ei, CHODA, Hisashi

Journal:

Tokyo Journal of Mathematics

Year:

2001

Language:

english

File:

PDF, 617 KB

english, 2001

9

On characterizations of the image of the Gelfand transform of commutative Banach algebras

Jyunji Inoue, Sin-Ei Takahasi

Journal:

Mathematische Nachrichten

Year:

2007

Language:

english

File:

PDF, 285 KB

english, 2007

10

A Discrete Korovkin Theorem and BKW-Operators

Ryotaro Sato, Sin-Ei Takahasi

Journal:

Journal of Approximation Theory

Year:

1996

Language:

english

File:

PDF, 580 KB

english, 1996

11

BKW-Operators on the Interval and the Sequence Spaces

Keiji Izuchi, Sin-Ei Takahasi

Journal:

Journal of Approximation Theory

Year:

1996

Language:

english

File:

PDF, 354 KB

english, 1996

12

Korovkin's theorems for C∗-algebras

Sin-ei Takahasi

Journal:

Journal of Approximation Theory

Year:

1979

Language:

english

File:

PDF, 334 KB

english, 1979

13

The Hyers–Ulam stability constants of first order linear differential operators

Sin-Ei Takahasi, Hiroyuki Takagi, Takeshi Miura, Shizuo Miyajima

Journal:

Journal of Mathematical Analysis and Applications

Year:

2004

Language:

english

File:

PDF, 94 KB

english, 2004

14

A perturbation of ring derivations on Banach algebras

Takeshi Miura, Go Hirasawa, Sin-Ei Takahasi

Journal:

Journal of Mathematical Analysis and Applications

Year:

2006

Language:

english

File:

PDF, 105 KB

english, 2006

15

Exponential type functional equation and its Hyers–Ulam stability

Sin-Ei Takahasi, Takeshi Miura, Hiroyuki Takagi

Journal:

Journal of Mathematical Analysis and Applications

Year:

2007

Language:

english

File:

PDF, 144 KB

english, 2007

16

Polynomial identities that imply commutativity for rings

Hiroyuki Takagi, Sin-Ei Takahasi, Takeshi Miura

Journal:

Linear Algebra and its Applications

Year:

2002

Language:

english

File:

PDF, 83 KB

english, 2002

17

Remarks on quasicentral approximate identities

Sin-ei Takahasi

Journal:

manuscripta mathematica

Year:

1984

Language:

english

File:

PDF, 138 KB

english, 1984

18

BKW-operators on the interval [0,1]

Keiji Izuchi, Sin-Ei Takahasi

Journal:

Rendiconti del Circolo Matematico di Palermo (1952 -)

Year:

1997

Language:

english

File:

PDF, 397 KB

english, 1997

19

A characterization of Hyers–Ulam stability of first order linear differential operators

Takeshi Miura, Shizuo Miyajima, Sin-Ei Takahasi

Journal:

Journal of Mathematical Analysis and Applications

Year:

2003

Language:

english

File:

PDF, 202 KB

english, 2003

20

Characterization of a generalized triangle inequality in normed spaces

Farzad Dadipour, Mohammad Sal Moslehian, John M. Rassias, Sin-Ei Takahasi

Journal:

Nonlinear Analysis: Theory, Methods & Applications

Year:

2012

Language:

english

File:

PDF, 227 KB

english, 2012

21

Stability of the Banach space valued Chebyshev differential equation

Takeshi Miura, Sin-Ei Takahasi, Takahiro Hayata, Kotaro Tanahashi

Journal:

Applied Mathematics Letters

Year:

2012

Language:

english

File:

PDF, 194 KB

english, 2012

22

A reconsideration of Jensen’s inequality and its applications

Nakasuji, Yasuo, Takahasi, Sin-Ei

Journal:

Journal of Inequalities and Applications

Year:

2013

Language:

english

File:

PDF, 186 KB

english, 2013

23

Real-linear isometries between subspaces of continuous functions

Koshimizu, Hironao, Miura, Takeshi, Takagi, Hiroyuki, Takahasi, Sin-Ei

Journal:

Journal of Mathematical Analysis and Applications

Year:

2014

Language:

english

File:

PDF, 333 KB

english, 2014

24

Ulam type stability problems for alternative homomorphisms

Takahasi, Sin-Ei, Tsukada, Makoto, Miura, Takeshi, Takagi, Hiroyuki, Tanahashi, Kotaro

Journal:

Journal of Inequalities and Applications

Year:

2014

Language:

english

File:

PDF, 328 KB

english, 2014

25

The Ulam Type Stability of a Generalized Additive Mapping and Concrete Examples

Oda, Hiroyoshi, Tsukada, Makoto, Miura, Takeshi, Kobayashi, Yuji, Takahasi, Sin-Ei

Journal:

International Journal of Mathematics and Mathematical Sciences

Year:

2013

Language:

english

File:

PDF, 139 KB

english, 2013

26

A new order-preserving average function on a quotient space of strictly monotone functions and its applications

Nakasuji, Yasuo, Takahasi, Sin-Ei

Journal:

Journal of Inequalities and Applications

Year:

2014

Language:

english

File:

PDF, 651 KB

english, 2014

27

Superstability of Generalized Multiplicative Functionals

Miura, Takeshi, Takagi, Hiroyuki, Tsukada, Makoto, Takahasi, Sin-Ei

Journal:

Journal of Inequalities and Applications

Year:

2009

Language:

english

File:

PDF, 148 KB

english, 2009

28

A Structure of Ring Homomorphisms on Commutative Banach Algebras

Sin-Ei Takahasi and Osamu Hatori

Journal:

Proceedings of the American Mathematical Society

Year:

1999

Language:

english

File:

PDF, 196 KB

english, 1999

29

Continuously differentiable means

Fujii, Jun Ichi, Fujii, Masatoshi, Miura, Takeshi, Takagi, Hiroyuki, Takahasi, Sin-Ei

Journal:

Journal of Inequalities and Applications

Year:

2006

Language:

english

File:

PDF, 252 KB

english, 2006

30

A reconsideration of Hua's inequality. Part II

Takagi, Hiroyuki, Miura, Takeshi, Hayata, Takahiro, Takahasi, Sin-Ei

Journal:

Journal of Inequalities and Applications

Year:

2006

Language:

english

File:

PDF, 223 KB

english, 2006

31

A reconsideration of Hua's inequality

Takagi, Hiroyuki, Miura, Takeshi, Kanzo, Tadashi, Takahasi, Sin-Ei

Journal:

Journal of Inequalities and Applications

Year:

2005

Language:

english

File:

PDF, 562 KB

english, 2005

32

Hyers-Ulam-Rassias stability of Jordan homomorphisms on Banach algebras

Miura, Takeshi, Takahasi, Sin-Ei, Hirasawa, Go

Journal:

Journal of Inequalities and Applications

Year:

2005

Language:

english

File:

PDF, 518 KB

english, 2005

33

Convex sets and inequalities

Takahasi, Sin-Ei, Takahashi, Yasuji, Miyajima, Shizuo, Takagi, Hiroyuki

Journal:

Journal of Inequalities and Applications

Year:

2005

Language:

english

File:

PDF, 213 KB

english, 2005

34

Segal algebras in commutative Banach algebras

Inoue, Jyunji, Takahasi, Sin-Ei

Journal:

Rocky Mountain Journal of Mathematics

Year:

2014

Language:

english

File:

PDF, 352 KB

english, 2014

35

Superstability of multipliers and ring derivations on Banach algebras

Miura, Takeshi, Oka, Hirokazu, Hirasawa, Go, Takahasi, Sin-Ei

Journal:

Banach Journal of Mathematical Analysis

Year:

2007

Language:

english

File:

PDF, 237 KB

english, 2007

36

Reflections and a generalization of the Mazur-Ulam theorem

Hatori, Osamu, Kobayashi, Kiyotaka, Miura, Takeshi, Takahasi, Sin-Ei

Journal:

Rocky Mountain Journal of Mathematics

Year:

2012

File:

PDF, 340 KB

2012

37

Classification of three-dimensional zeropotent algebras over an algebraically closed field

Kobayashi, Yuji, Shirayanagi, Kiyoshi, Takahasi, Sin-Ei, Tsukada, Makoto

Journal:

Communications in Algebra

Year:

2017

Language:

english

File:

PDF, 431 KB

english, 2017

38

A complete classification of continuous fractional operations on $$\mathbb {C}$$ C

Kobayashi, Yuji, Takahasi, Sin-Ei, Tsukada, Makoto

Journal:

Periodica Mathematica Hungarica

Year:

2017

Language:

english

File:

PDF, 391 KB

english, 2017

39

An Equality Condition of Arhippainen-Müller's Estimate and its Related Problem

Takahasi, Sin-Ei, Miura, Takeshi, Hayata, Takahiro

Journal:

Taiwanese Journal of Mathematics

Year:

2011

Language:

english

File:

PDF, 49 KB

english, 2011

40

Classification of three-dimensional zeropotent algebras over the real number field

Shirayanagi, Kiyoshi, Takahasi, Sin-Ei, Tsukada, Makoto, Kobayashi, Yuji

Journal:

Communications in Algebra

Year:

2018

Language:

english

File:

PDF, 448 KB

english, 2018

41

Classification of Continuous Fractional Binary Operations on the Real and Complex Fields

TAKAHASI, Sin-Ei, TSUKADA, Makoto, KOBAYASHI, Yuji

Journal:

Tokyo Journal of Mathematics

Year:

2015

Language:

english

File:

PDF, 95 KB

english, 2015

42

A construction of a BSE-algebra of type I which is isomorphic to no $\rm C^*$-algebras

Inoue, Jyunji, Takahasi, Sin-Ei

Journal:

Rocky Mountain Journal of Mathematics

Year:

2017

Language:

english

File:

PDF, 84 KB

english, 2017

43

Spatial numerical ranges of elements of subalgebras of

Takahasi, Sin-Ei

Journal:

International Journal of Mathematics and Mathematical Sciences

Year:

2000

Language:

english

File:

PDF, 1.80 MB

english, 2000

44

Finite dimensionality in scole of Banach algebras

Takahasi, Sin-Ei

Journal:

International Journal of Mathematics and Mathematical Sciences

Year:

1984

Language:

english

File:

PDF, 2.02 MB

english, 1984

45

A note on a class of Banach algebra-valued polynomials

Takahasi, Sin-Ei, Hatori, Osamu, Watanabe, Keiichi, Miura, Takeshi

Journal:

International Journal of Mathematics and Mathematical Sciences

Year:

2002

Language:

english

File:

PDF, 1.80 MB

english, 2002

46

Ring homomorphisms on real Banach algebras

Miura, Takeshi, Takahasi, Sin-Ei

Journal:

International Journal of Mathematics and Mathematical Sciences

Year:

2003

Language:

english

File:

PDF, 1.80 MB

english, 2003

47

Ger-type and Hyers-Ulam stabilities for the first-order linear differential operators of entire functions

Miura, Takeshi, Hirasawa, Go, Takahasi, Sin-Ei

Journal:

International Journal of Mathematics and Mathematical Sciences

Year:

2004

Language:

english

File:

PDF, 1.82 MB

english, 2004

48

into

Takahasi, Sin-Ei, Okayasu, Takateru

Journal:

International Journal of Mathematics and Mathematical Sciences

Year:

1995

Language:

english

File:

PDF, 2.01 MB

english, 1995

49

An extension of Helson-Edwards theorem to Banach Modules

Takahasi, Sin-Ei

Journal:

International Journal of Mathematics and Mathematical Sciences

Year:

1991

Language:

english

File:

PDF, 2.11 MB

english, 1991

50

A Note on the Peter-Weyl Theorem

TAKAHASI, Sin-ei

Journal:

Bulletin of the Faculty of Science Ibaraki University Series A Mathematics

Year:

1970

Language:

english

File:

PDF, 120 KB

english, 1970