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Author ID: takahasi.sin-ei Recent zbMATH articles by "Takahasi, Sin-Ei"
Published as: Takahasi, Sin-Ei; Takahasi, Sin-ei; Takahasi, S.-E.; Takahasi, Sın-Eı; Takahasi, S.-e.; Takahasi, S-E.; Takahasi, S.
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Serials

19 Bulletin of the Faculty of Science. Series A. Mathematics
14 Journal of Inequalities and Applications
13 RIMS Kokyuroku
9 International Journal of Mathematics and Mathematical Sciences
8 Mathematical Inequalities & Applications
7 Mathematica Japonica
5 Journal of Mathematical Analysis and Applications
5 Journal of Approximation Theory
4 Semigroup Forum
4 Journal of Nonlinear and Convex Analysis
4 Nihonkai Mathematical Journal
4 Scientiae Mathematicae Japonicae
3 Communications in Algebra
3 Rocky Mountain Journal of Mathematics
3 Journal of the Korean Mathematical Society
3 Mathematische Nachrichten
3 Proceedings of the American Mathematical Society
3 Publicationes Mathematicae Debrecen
3 Tokyo Journal of Mathematics
3 Bulletin of the Korean Mathematical Society
3 Taiwanese Journal of Mathematics
3 Journal of Mathematical Inequalities
2 Canadian Journal of Mathematics
2 Manuscripta Mathematica
2 Proceedings of the Edinburgh Mathematical Society. Series II
2 Nonlinear Functional Analysis and Applications
2 The Australian Journal of Mathematical Analysis and Applications
2 Linear and Nonlinear Analysis
1 Periodica Mathematica Hungarica
1 Revue Roumaine de Mathématiques Pures et Appliquées
1 Acta Scientiarum Mathematicarum
1 Journal of Functional Analysis
1 Mathematical Journal of Okayama University
1 Mathematica Scandinavica
1 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods
1 Pacific Journal of Mathematics
1 Rendiconti del Circolo Matemàtico di Palermo. Serie II
1 Results in Mathematics
1 Tôhoku Mathematical Journal. Second Series
1 Transactions of the American Mathematical Society
1 Utilitas Mathematica
1 Yokohama Mathematical Journal
1 Soochow Journal of Mathematics
1 Applied Mathematics Letters
1 Linear Algebra and its Applications
1 Tamsui Oxford Journal of Mathematical Sciences
1 Journal of Analysis and Applications
1 Banach Journal of Mathematical Analysis
1 Asian-European Journal of Mathematics
1 Constructive Mathematical Analysis

Publications by Year

Citations contained in zbMATH Open

85 Publications have been cited 746 times in 411 Documents Cited by Year
On the Hyers-Ulam stability of the Banach space-valued differential equation \(y'=\lambda y\). Zbl 1011.34046
Takahasi, Sin-Ei; Miura, Takeshi; Miyajima, Shizuo
112
2002
A characterization of Hyers-Ulam stability of first order linear differential operators. Zbl 1045.47037
Miura, Takeshi; Miyajima, Shizuo; Takahasi, Sin-Ei
97
2003
Hyers-Ulam stability of linear differential operator with constant coefficients. Zbl 1039.34054
Miura, Takeshi; Miyajima, Shizuo; Takahasi, Sin-Ei
63
2003
The Hyers–Ulam stability constants of first order linear differential operators. Zbl 1074.47022
Takahasi, Sin-Ei; Takagi, Hiroyuki; Miura, Takeshi; Miyajima, Shizuo
38
2004
Hyers-Ulam-Rassias stability of the Banach space valued linear differential equations \(y'=\lambda y\). Zbl 1069.34079
Miura, Takeshi; Jung, Soon-Mo; Takahasi, Sin-Ei
36
2004
On the Hyers-Ulam stability of real continuous function valued differentiable map. Zbl 1002.39039
Miura, Takeshi; Takahasi, Sin-ei; Choda, Hisashi
36
2001
A perturbation of ring derivations on Banach algebras. Zbl 1104.39025
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei
29
2006
Commutative Banach algebras which satisfy a Bochner-Schoenberg-Eberlein- type theorem. Zbl 0722.46025
Takahasi, Sin-Ei; Hatori, Osamu
26
1990
Essential norms and stability constants of weighted composition operators on \(C(X)\). Zbl 1060.47033
Takagi, Hiroyuki; Miura, Takeshi; Takahasi, Sin-Ei
21
2003
On the best constant of Hyers-Ulam stability. Zbl 1079.39025
Hatori, Osamu; Kobayashi, Kiyotaka; Miura, Takeshi; Takagi, Hiroyuki; Takahasi, Sin-Ei
20
2004
Hyers-Ulam-Rassias stability of Jordan homomorphisms on Banach algebras. Zbl 1104.39026
Miura, Takeshi; Takahasi, Sin-Ei; Hirasawa, Go
18
2005
A refinement of various mean inequalities. Zbl 0917.26017
Hara, Takuya; Uchiyama, Mitsuru; Takahasi, Sin-Ei
17
1998
Real-linear isometries between subspaces of continuous functions. Zbl 1328.46018
Koshimizu, Hironao; Miura, Takeshi; Takagi, Hiroyuki; Takahasi, Sin-Ei
17
2014
On convergence of a recursive sequence \(x_{n+1}= f(x_{n-1},x_n)\). Zbl 1100.39001
Takahasi, Sin-Ei; Miura, Yasuhide; Miura, Takeshi
16
2006
Inequalities of Furuta and Mond-Pečarić. Zbl 0924.47013
Mićić, Jadranka; Seo, Yuki; Takahasi, Sin-Ei; Tominaga, Masaru
13
1999
Commutative Banach algebras and BSE-inequalities. Zbl 0795.46040
Takahasi, Sin-Ei; Hatori, Osamu
10
1992
Characterization of a generalized triangle inequality in normed spaces. Zbl 1242.46029
Dadipour, Farzad; Moslehian, Mohammad Sal; Rassias, John M.; Takahasi, Sin-Ei
9
2012
On characterizations of the image of the Gelfand transform of commutative Banach algebras. Zbl 1116.46037
Inoue, Jyunji; Takahasi, Sin-Ei
9
2007
Classification of three-dimensional zeropotent algebras over an algebraically closed field. Zbl 1414.17001
Kobayashi, Yuji; Shirayanagi, Kiyoshi; Takahasi, Sin-Ei; Tsukada, Makoto
7
2017
Constructions of bounded weak approximate identities for Segal algebras on LCA groups. Zbl 0980.46038
Inoue, Jyunji; Takahasi, Sin-Ei
7
2000
Operator inequalities and covariance in noncommutative probability. Zbl 0902.47014
Fujii, Masatoshi; Furuta, Takayuki; Nakamoto, Ritsuo; Takahasi, Sin-Ei
6
1997
Commutative Banach algebras and BSE-norm. Zbl 0897.46044
Takahasi, Sin-Ei; Takahashi, Yasuji; Hatori, Osamu; Tanahashi, Kôtarô
5
1997
Superstability of multipliers and ring derivations on Banach algebras. Zbl 1129.46040
Miura, Takeshi; Oka, Hirokazu; Hirasawa, Go; Takahasi, Sin-Ei
5
2007
Exponential type functional equation and its Hyers-Ulam stability. Zbl 1154.39304
Takahasi, Sin-Ei; Miura, Takeshi; Takagi, Hiroyuki
5
2007
Norm equality condition in triangular inequality. Zbl 1031.46059
Nakamoto, Ritsuo; Takahasi, Sin-Ei
5
2002
\((T,E)\)-Korovkin closures in normed spaces and BKW-operators. Zbl 0865.47008
Takahasi, Sin-Ei
4
1995
Stability of the Banach space valued Chebyshev differential equation. Zbl 1257.34043
Miura, Takeshi; Takahasi, Sin-Ei; Hayata, Takahiro; Tanahashi, Kotaro
4
2012
Ger-type and Hyers–Ulam stabilities for the first-order linear differential operators of entire functions. Zbl 1079.47050
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei
4
2004
Bohman-Korovkin-Wulpert operators on normed spaces. Zbl 0778.41008
Takahasi, Sin-Ei
4
1993
Continuous semigroup structures on \(\mathbb R\), cancellative semigroups and bands. Zbl 1321.22005
Kobayashi, Yuji; Nakasuji, Yasuo; Takahasi, Sin-Ei; Tsukada, Makoto
4
2015
Segal algebras in commutative Banach algebras. Zbl 1319.46040
Inoue, Jyunji; Takahasi, Sin-Ei
4
2014
Korovkin’s theorems for C*-algebras. Zbl 0428.41014
Takahasi, Sin-ei
3
1979
Cooper’s approach to chaotic operator means. Zbl 1117.47013
Fujii, Jun Ichi; Nakamura, Masahiro; Takahasi, Sin-Ei
3
2006
Refined generalizations of the triangle inequality on Banach spaces. Zbl 1205.26034
Takahasi, Sin-Ei; Rassias, John M.; Saitoh, Saburou; Takahashi, Yasuji
3
2010
Stability of multipliers on Banach algebras. Zbl 1085.47048
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei
3
2004
A reconsideration of Hua’s inequality. Zbl 1081.26018
Takagi, Hiroyuki; Miura, Takeshi; Kanzo, Tadashi; Takahasi, Sin-Ei
3
2005
On Wirtinger’s inequality and its elementary proof. Zbl 1171.26333
Takahasi, Sin-Ei; Miura, Takeshi; Hayata, Takahiro
3
2007
On a Hyers-Ulam-Aoki-Rassias type stability and a fixed point theorem. Zbl 1209.39006
Takahasi, Sin-Ei; Miura, Takeshi; Takagi, Hiroyuki
3
2010
Continuously differentiable means. Zbl 1133.26323
Fujii, Jun Ichi; Fujii, Masatoshi; Miura, Takeshi; Takagi, Hiroyuki; Takahasi, Sin-Ei
3
2006
Hyers-Ulam stability of the first order linear differential equation for Banach space-valued holomorphic mappings. Zbl 1143.34059
Miura, Takeshi; Oka, Hirokazu; Takahasi, Sin-Ei; Niwa, Norio
3
2007
Reflections and a generalization of the Mazur-Ulam theorem. Zbl 1250.46008
Hatori, Osamu; Kobayashi, Kiyotaka; Miura, Takeshi; Takahasi, Sin-Ei
3
2012
Semigroup operations distributed by the ordinary multiplication or addition on the real numbers. Zbl 1413.22003
Takahasi, Sin-Ei; Takagi, Hiroyuki; Miura, Takeshi; Oka, Hirokazu
3
2017
Classification of three-dimensional zeropotent algebras over the real number field. Zbl 1414.17002
Shirayanagi, Kiyoshi; Takahasi, Sin-Ei; Tsukada, Makoto; Kobayashi, Yuji
3
2018
The Arens product and quasi-multipliers. Zbl 0608.46026
Vasudevan, R.; Goel, Satya; Takahasi, S.
2
1985
An inverse type of Jensen’s inequality. Zbl 0934.26006
Takahasi, Sin-Ei; Tsukada, Makoto; Tanahashi, Kôtarô; Ogiwara, Toshiko
2
1999
Convex sets and inequalities. Zbl 1081.26019
Takahasi, Sin-Ei; Takahashi, Yasuji; Miyajima, Shizuo; Takagi, Hiroyuki
2
2005
The best possibility of the bound for the Kantorovich inequality and some remarks. Zbl 0934.26010
Tsukada, M.; Takahasi, Sin-Ei
2
1997
A new interpretation of Jensen’s inequality and geometric properties of \(\phi\)-means. Zbl 1275.26054
Nakasuji, Yasuo; Kumahara, Keisaku; Takahasi, Sin-Ei
2
2011
BSE Banach modules and multipliers. Zbl 0848.46034
Takahasi, Sin-Ei
2
1994
Quasi-centrality of Banach algebras and approximate identity. Zbl 0522.46032
Takahasi, Sin-ei
2
1983
An extension of Hlawka’s inequality. Zbl 0949.26012
Takahasi, Sin-Ei; Takahashi, Yasuji; Wada, Shuhei
2
2000
Bohman-Korovkin-Wulbert operators on \(C[0,1]\) for \(\{1,x,x^2,x^3,x^4\}\). Zbl 0956.41501
Takahasi, Sin-ei
2
1990
A new interpretation of Djoković’s inequality. Zbl 0978.26008
Takahasi, Sin-ei; Takahashi, Yasuji; Honda, Aoi
2
2000
A structure of ring homomorphisms on commutative Banach algebras. Zbl 0918.46050
Takahasi, Sin-Ei; Hatori, Osamu
2
1999
Classification of semisimple commutative Banach algebras of type I. Zbl 1439.46041
Inoue, Jyunji; Miura, Takeshi; Takagi, Hiroyuki; Takahasi, Sin-Ei
2
2019
Characterization of distributive semigroup operations on the positive real numbers. Zbl 1440.22005
Takahasi, Sin-Ei; Miura, Takeshi; Oka, Hirokazu
2
2020
A construction of a BSE-algebra of type I which is isomorphic to no \( C^\ast\)-algebras. Zbl 1395.46035
Inoue, Jyunji; Takahasi, Sin-Ei
2
2017
Commutative semigroup operations on \(R^2\) compatible with the ordinary additive operation. Zbl 1327.22002
Anbe, Seiji; Takahasi, Sin-Ei; Tsukada, Makoto; Miura, Takeshi
2
2015
Classification of continuous fractional binary operations on the real and complex fields. Zbl 1364.30005
Takahasi, Sin-Ei; Tsukada, Makoto; Kobayashi, Yuji
2
2015
A reconsideration of Jensen’s inequality and its applications. Zbl 1285.39009
Nakasuji, Yasuo; Takahasi, Sin-Ei
2
2013
Equivalent conditions for the general Stone-Weierstrass problem. Zbl 0579.46040
Fujimoto, Ichiro; Takahasi, Sin-Ei
1
1985
Finite dimensionality in socle of Banach algebras. Zbl 0581.46043
Takahasi, Sin-Ei
1
1984
A note on the largest regular subalgebra of a Banach algebra. Zbl 0806.46052
Inoue, Jyunji; Takahasi, Sin-Ei
1
1992
A note on finite codimensional linear isometries of \(C(X)\) into \(C(Y)\). Zbl 0844.46008
Takahasi, Sin-Ei; Okayasu, Takateru
1
1995
A spectral mapping theorem for some representation of compact abelian groups. Zbl 0738.46025
Takahasi, Sin-Ei; Inoue, Jyunji
1
1992
A characterization of the stability of a system of the Banach space valued differential equations. Zbl 1288.34055
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei; Hayata, Takahiro
1
2013
BKW-operators on the interval and the sequence spaces. Zbl 0861.41015
Izuchi, Keiji; Takahasi, Sin-Ei
1
1996
Polynomial identities that imply commutativity for rings. Zbl 1001.17003
Takagi, Hiroyuki; Takahasi, Sin-Ei; Miura, Takeshi
1
2002
On weighted extensions of Carleman’s inequality and Hardy’s inequality. Zbl 1046.26008
Hara, Takuya; Takahasi, Sin-Ei
1
2003
The Hyers-Ulam stability of a weighted composition operator on a uniform algebra. Zbl 1070.47014
Takagi, Hiroyuki; Miura, Takeshi; Takahasi, Sin-Ei
1
2004
Note on the Hyers-Ulam-Rassias stability of the first order linear differential equation. Zbl 1121.34062
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei
1
2006
A reconsideration of Hua’s inequality. II. Zbl 1133.26312
Takagi, Hiroyuki; Miura, Takeshi; Hayata, Takahiro; Takahasi, Sin-Ei
1
2006
Banach function algebras of \(n\)-times continuously differentiable functions on \(\mathbf{R}^d\) vanishing at infinity and their BSE-extensions. Zbl 1442.46036
Inoue, Jyunji; Takahasi, Sin-Ei
1
2019
Ulam type stability problems for alternative homomorphisms. Zbl 1372.39033
Takahasi, Sin-Ei; Tsukada, Makoto; Miura, Takeshi; Takagi, Hiroyuki; Tanahashi, Kotaro
1
2014
On the structure of the solution set of a third kind boundary value problem. Zbl 1048.34039
Takahasi, Sin-Ei; Oka, Hirokazu; Miura, Takeshi
1
2003
An extension of Müntz-Szasz theorem and Hwang-Pan-Wu theorem. Zbl 0451.42020
Takahasi, Sin-ei
1
1980
A perturbation of normal operators on a Hilbert space. Zbl 1162.47022
Miura, Takeshi; Uchiyama, Atsushi; Oka, Hirokazu; Hirasawa, Go; Takahasi, Sin-Ei; Niwa, Norio
1
2008
Korovkin type theorem on \(C[0,1]\). Zbl 0939.41519
Takahasi, Sin-ei
1
1990
Inequalities of Furuta and Mond-Pečarić on the Hadamard product. Zbl 0969.47016
Seo, Yuki; Takahasi, Sin-Ei; Pečarić, Josip; Mićić, Jadranka
1
2000
A Cauchy-Euler type factorization of operators. Zbl 1181.47015
Takahasi, Sin-Ei; Oka, Hirokazu; Miura, Takeshi; Takagi, Hiroyuki
1
2008
A general Hlawka inequality and its reverse inequality. Zbl 1177.26050
Takahashi, Yasuji; Takahasi, Sin-Ei; Wada, Shuhei
1
2009
Dixmier’s representation theorem of central double centralizers on Banach algebras. Zbl 0423.46036
Takahasi, Sin-Ei
1
1979
Semigroup operations distributed by natural noncancellative semigroup operations on the positive real numbers. Zbl 1468.22006
Oka, Hirokazu; Miura, Takeshi; Takahasi, Sin-Ei
1
2020
Stability problems for generalized additive mappings and Euler-Lagrange type mappings. Zbl 1245.39020
Todoroki, M.; Kumahara, K.; Miura, T.; Takahasi, S.-E.
1
2012
A note on the stability of an integral equation. Zbl 1248.45008
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei; Hayata, Takahiro
1
2011
Characterization of distributive semigroup operations on the positive real numbers. Zbl 1440.22005
Takahasi, Sin-Ei; Miura, Takeshi; Oka, Hirokazu
2
2020
Semigroup operations distributed by natural noncancellative semigroup operations on the positive real numbers. Zbl 1468.22006
Oka, Hirokazu; Miura, Takeshi; Takahasi, Sin-Ei
1
2020
Classification of semisimple commutative Banach algebras of type I. Zbl 1439.46041
Inoue, Jyunji; Miura, Takeshi; Takagi, Hiroyuki; Takahasi, Sin-Ei
2
2019
Banach function algebras of \(n\)-times continuously differentiable functions on \(\mathbf{R}^d\) vanishing at infinity and their BSE-extensions. Zbl 1442.46036
Inoue, Jyunji; Takahasi, Sin-Ei
1
2019
Classification of three-dimensional zeropotent algebras over the real number field. Zbl 1414.17002
Shirayanagi, Kiyoshi; Takahasi, Sin-Ei; Tsukada, Makoto; Kobayashi, Yuji
3
2018
Classification of three-dimensional zeropotent algebras over an algebraically closed field. Zbl 1414.17001
Kobayashi, Yuji; Shirayanagi, Kiyoshi; Takahasi, Sin-Ei; Tsukada, Makoto
7
2017
Semigroup operations distributed by the ordinary multiplication or addition on the real numbers. Zbl 1413.22003
Takahasi, Sin-Ei; Takagi, Hiroyuki; Miura, Takeshi; Oka, Hirokazu
3
2017
A construction of a BSE-algebra of type I which is isomorphic to no \( C^\ast\)-algebras. Zbl 1395.46035
Inoue, Jyunji; Takahasi, Sin-Ei
2
2017
Continuous semigroup structures on \(\mathbb R\), cancellative semigroups and bands. Zbl 1321.22005
Kobayashi, Yuji; Nakasuji, Yasuo; Takahasi, Sin-Ei; Tsukada, Makoto
4
2015
Commutative semigroup operations on \(R^2\) compatible with the ordinary additive operation. Zbl 1327.22002
Anbe, Seiji; Takahasi, Sin-Ei; Tsukada, Makoto; Miura, Takeshi
2
2015
Classification of continuous fractional binary operations on the real and complex fields. Zbl 1364.30005
Takahasi, Sin-Ei; Tsukada, Makoto; Kobayashi, Yuji
2
2015
Real-linear isometries between subspaces of continuous functions. Zbl 1328.46018
Koshimizu, Hironao; Miura, Takeshi; Takagi, Hiroyuki; Takahasi, Sin-Ei
17
2014
Segal algebras in commutative Banach algebras. Zbl 1319.46040
Inoue, Jyunji; Takahasi, Sin-Ei
4
2014
Ulam type stability problems for alternative homomorphisms. Zbl 1372.39033
Takahasi, Sin-Ei; Tsukada, Makoto; Miura, Takeshi; Takagi, Hiroyuki; Tanahashi, Kotaro
1
2014
A reconsideration of Jensen’s inequality and its applications. Zbl 1285.39009
Nakasuji, Yasuo; Takahasi, Sin-Ei
2
2013
A characterization of the stability of a system of the Banach space valued differential equations. Zbl 1288.34055
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei; Hayata, Takahiro
1
2013
Characterization of a generalized triangle inequality in normed spaces. Zbl 1242.46029
Dadipour, Farzad; Moslehian, Mohammad Sal; Rassias, John M.; Takahasi, Sin-Ei
9
2012
Stability of the Banach space valued Chebyshev differential equation. Zbl 1257.34043
Miura, Takeshi; Takahasi, Sin-Ei; Hayata, Takahiro; Tanahashi, Kotaro
4
2012
Reflections and a generalization of the Mazur-Ulam theorem. Zbl 1250.46008
Hatori, Osamu; Kobayashi, Kiyotaka; Miura, Takeshi; Takahasi, Sin-Ei
3
2012
Stability problems for generalized additive mappings and Euler-Lagrange type mappings. Zbl 1245.39020
Todoroki, M.; Kumahara, K.; Miura, T.; Takahasi, S.-E.
1
2012
A new interpretation of Jensen’s inequality and geometric properties of \(\phi\)-means. Zbl 1275.26054
Nakasuji, Yasuo; Kumahara, Keisaku; Takahasi, Sin-Ei
2
2011
A note on the stability of an integral equation. Zbl 1248.45008
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei; Hayata, Takahiro
1
2011
Refined generalizations of the triangle inequality on Banach spaces. Zbl 1205.26034
Takahasi, Sin-Ei; Rassias, John M.; Saitoh, Saburou; Takahashi, Yasuji
3
2010
On a Hyers-Ulam-Aoki-Rassias type stability and a fixed point theorem. Zbl 1209.39006
Takahasi, Sin-Ei; Miura, Takeshi; Takagi, Hiroyuki
3
2010
A general Hlawka inequality and its reverse inequality. Zbl 1177.26050
Takahashi, Yasuji; Takahasi, Sin-Ei; Wada, Shuhei
1
2009
A perturbation of normal operators on a Hilbert space. Zbl 1162.47022
Miura, Takeshi; Uchiyama, Atsushi; Oka, Hirokazu; Hirasawa, Go; Takahasi, Sin-Ei; Niwa, Norio
1
2008
A Cauchy-Euler type factorization of operators. Zbl 1181.47015
Takahasi, Sin-Ei; Oka, Hirokazu; Miura, Takeshi; Takagi, Hiroyuki
1
2008
On characterizations of the image of the Gelfand transform of commutative Banach algebras. Zbl 1116.46037
Inoue, Jyunji; Takahasi, Sin-Ei
9
2007
Superstability of multipliers and ring derivations on Banach algebras. Zbl 1129.46040
Miura, Takeshi; Oka, Hirokazu; Hirasawa, Go; Takahasi, Sin-Ei
5
2007
Exponential type functional equation and its Hyers-Ulam stability. Zbl 1154.39304
Takahasi, Sin-Ei; Miura, Takeshi; Takagi, Hiroyuki
5
2007
On Wirtinger’s inequality and its elementary proof. Zbl 1171.26333
Takahasi, Sin-Ei; Miura, Takeshi; Hayata, Takahiro
3
2007
Hyers-Ulam stability of the first order linear differential equation for Banach space-valued holomorphic mappings. Zbl 1143.34059
Miura, Takeshi; Oka, Hirokazu; Takahasi, Sin-Ei; Niwa, Norio
3
2007
A perturbation of ring derivations on Banach algebras. Zbl 1104.39025
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei
29
2006
On convergence of a recursive sequence \(x_{n+1}= f(x_{n-1},x_n)\). Zbl 1100.39001
Takahasi, Sin-Ei; Miura, Yasuhide; Miura, Takeshi
16
2006
Cooper’s approach to chaotic operator means. Zbl 1117.47013
Fujii, Jun Ichi; Nakamura, Masahiro; Takahasi, Sin-Ei
3
2006
Continuously differentiable means. Zbl 1133.26323
Fujii, Jun Ichi; Fujii, Masatoshi; Miura, Takeshi; Takagi, Hiroyuki; Takahasi, Sin-Ei
3
2006
Note on the Hyers-Ulam-Rassias stability of the first order linear differential equation. Zbl 1121.34062
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei
1
2006
A reconsideration of Hua’s inequality. II. Zbl 1133.26312
Takagi, Hiroyuki; Miura, Takeshi; Hayata, Takahiro; Takahasi, Sin-Ei
1
2006
Hyers-Ulam-Rassias stability of Jordan homomorphisms on Banach algebras. Zbl 1104.39026
Miura, Takeshi; Takahasi, Sin-Ei; Hirasawa, Go
18
2005
A reconsideration of Hua’s inequality. Zbl 1081.26018
Takagi, Hiroyuki; Miura, Takeshi; Kanzo, Tadashi; Takahasi, Sin-Ei
3
2005
Convex sets and inequalities. Zbl 1081.26019
Takahasi, Sin-Ei; Takahashi, Yasuji; Miyajima, Shizuo; Takagi, Hiroyuki
2
2005
The Hyers–Ulam stability constants of first order linear differential operators. Zbl 1074.47022
Takahasi, Sin-Ei; Takagi, Hiroyuki; Miura, Takeshi; Miyajima, Shizuo
38
2004
Hyers-Ulam-Rassias stability of the Banach space valued linear differential equations \(y'=\lambda y\). Zbl 1069.34079
Miura, Takeshi; Jung, Soon-Mo; Takahasi, Sin-Ei
36
2004
On the best constant of Hyers-Ulam stability. Zbl 1079.39025
Hatori, Osamu; Kobayashi, Kiyotaka; Miura, Takeshi; Takagi, Hiroyuki; Takahasi, Sin-Ei
20
2004
Ger-type and Hyers–Ulam stabilities for the first-order linear differential operators of entire functions. Zbl 1079.47050
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei
4
2004
Stability of multipliers on Banach algebras. Zbl 1085.47048
Miura, Takeshi; Hirasawa, Go; Takahasi, Sin-Ei
3
2004
The Hyers-Ulam stability of a weighted composition operator on a uniform algebra. Zbl 1070.47014
Takagi, Hiroyuki; Miura, Takeshi; Takahasi, Sin-Ei
1
2004
A characterization of Hyers-Ulam stability of first order linear differential operators. Zbl 1045.47037
Miura, Takeshi; Miyajima, Shizuo; Takahasi, Sin-Ei
97
2003
Hyers-Ulam stability of linear differential operator with constant coefficients. Zbl 1039.34054
Miura, Takeshi; Miyajima, Shizuo; Takahasi, Sin-Ei
63
2003
Essential norms and stability constants of weighted composition operators on \(C(X)\). Zbl 1060.47033
Takagi, Hiroyuki; Miura, Takeshi; Takahasi, Sin-Ei
21
2003
On weighted extensions of Carleman’s inequality and Hardy’s inequality. Zbl 1046.26008
Hara, Takuya; Takahasi, Sin-Ei
1
2003
On the structure of the solution set of a third kind boundary value problem. Zbl 1048.34039
Takahasi, Sin-Ei; Oka, Hirokazu; Miura, Takeshi
1
2003
On the Hyers-Ulam stability of the Banach space-valued differential equation \(y'=\lambda y\). Zbl 1011.34046
Takahasi, Sin-Ei; Miura, Takeshi; Miyajima, Shizuo
112
2002
Norm equality condition in triangular inequality. Zbl 1031.46059
Nakamoto, Ritsuo; Takahasi, Sin-Ei
5
2002
Polynomial identities that imply commutativity for rings. Zbl 1001.17003
Takagi, Hiroyuki; Takahasi, Sin-Ei; Miura, Takeshi
1
2002
On the Hyers-Ulam stability of real continuous function valued differentiable map. Zbl 1002.39039
Miura, Takeshi; Takahasi, Sin-ei; Choda, Hisashi
36
2001
Constructions of bounded weak approximate identities for Segal algebras on LCA groups. Zbl 0980.46038
Inoue, Jyunji; Takahasi, Sin-Ei
7
2000
An extension of Hlawka’s inequality. Zbl 0949.26012
Takahasi, Sin-Ei; Takahashi, Yasuji; Wada, Shuhei
2
2000
A new interpretation of Djoković’s inequality. Zbl 0978.26008
Takahasi, Sin-ei; Takahashi, Yasuji; Honda, Aoi
2
2000
Inequalities of Furuta and Mond-Pečarić on the Hadamard product. Zbl 0969.47016
Seo, Yuki; Takahasi, Sin-Ei; Pečarić, Josip; Mićić, Jadranka
1
2000
Inequalities of Furuta and Mond-Pečarić. Zbl 0924.47013
Mićić, Jadranka; Seo, Yuki; Takahasi, Sin-Ei; Tominaga, Masaru
13
1999
An inverse type of Jensen’s inequality. Zbl 0934.26006
Takahasi, Sin-Ei; Tsukada, Makoto; Tanahashi, Kôtarô; Ogiwara, Toshiko
2
1999
A structure of ring homomorphisms on commutative Banach algebras. Zbl 0918.46050
Takahasi, Sin-Ei; Hatori, Osamu
2
1999
A refinement of various mean inequalities. Zbl 0917.26017
Hara, Takuya; Uchiyama, Mitsuru; Takahasi, Sin-Ei
17
1998
Operator inequalities and covariance in noncommutative probability. Zbl 0902.47014
Fujii, Masatoshi; Furuta, Takayuki; Nakamoto, Ritsuo; Takahasi, Sin-Ei
6
1997
Commutative Banach algebras and BSE-norm. Zbl 0897.46044
Takahasi, Sin-Ei; Takahashi, Yasuji; Hatori, Osamu; Tanahashi, Kôtarô
5
1997
The best possibility of the bound for the Kantorovich inequality and some remarks. Zbl 0934.26010
Tsukada, M.; Takahasi, Sin-Ei
2
1997
BKW-operators on the interval and the sequence spaces. Zbl 0861.41015
Izuchi, Keiji; Takahasi, Sin-Ei
1
1996
\((T,E)\)-Korovkin closures in normed spaces and BKW-operators. Zbl 0865.47008
Takahasi, Sin-Ei
4
1995
A note on finite codimensional linear isometries of \(C(X)\) into \(C(Y)\). Zbl 0844.46008
Takahasi, Sin-Ei; Okayasu, Takateru
1
1995
BSE Banach modules and multipliers. Zbl 0848.46034
Takahasi, Sin-Ei
2
1994
Bohman-Korovkin-Wulpert operators on normed spaces. Zbl 0778.41008
Takahasi, Sin-Ei
4
1993
Commutative Banach algebras and BSE-inequalities. Zbl 0795.46040
Takahasi, Sin-Ei; Hatori, Osamu
10
1992
A note on the largest regular subalgebra of a Banach algebra. Zbl 0806.46052
Inoue, Jyunji; Takahasi, Sin-Ei
1
1992
A spectral mapping theorem for some representation of compact abelian groups. Zbl 0738.46025
Takahasi, Sin-Ei; Inoue, Jyunji
1
1992
Commutative Banach algebras which satisfy a Bochner-Schoenberg-Eberlein- type theorem. Zbl 0722.46025
Takahasi, Sin-Ei; Hatori, Osamu
26
1990
Bohman-Korovkin-Wulbert operators on \(C[0,1]\) for \(\{1,x,x^2,x^3,x^4\}\). Zbl 0956.41501
Takahasi, Sin-ei
2
1990
Korovkin type theorem on \(C[0,1]\). Zbl 0939.41519
Takahasi, Sin-ei
1
1990
The Arens product and quasi-multipliers. Zbl 0608.46026
Vasudevan, R.; Goel, Satya; Takahasi, S.
2
1985
Equivalent conditions for the general Stone-Weierstrass problem. Zbl 0579.46040
Fujimoto, Ichiro; Takahasi, Sin-Ei
1
1985
Finite dimensionality in socle of Banach algebras. Zbl 0581.46043
Takahasi, Sin-Ei
1
1984
Quasi-centrality of Banach algebras and approximate identity. Zbl 0522.46032
Takahasi, Sin-ei
2
1983
An extension of Müntz-Szasz theorem and Hwang-Pan-Wu theorem. Zbl 0451.42020
Takahasi, Sin-ei
1
1980
Korovkin’s theorems for C*-algebras. Zbl 0428.41014
Takahasi, Sin-ei
3
1979
Dixmier’s representation theorem of central double centralizers on Banach algebras. Zbl 0423.46036
Takahasi, Sin-Ei
1
1979
all top 5

Cited by 425 Authors

41 Jung, Soon-Mo
27 Takahasi, Sin-Ei
18 Eshaghi Gordji, Madjid
18 Popa, Dorian
16 Miura, Takeshi
14 Park, Choonkil
13 Stević, Stevo
12 Zada, Akbar
10 Brzdęk, Janusz
10 Li, Yongjin
10 Wang, Jinrong
9 Dragomir, Sever Silvestru
9 Rasa, Ioan
9 Roh, Jaiok
9 Shen, Yonghong
8 Onitsuka, Masakazu
8 Rassias, Themistocles Michael
7 Chang, Ick-Soon
7 Kamali, Zeinab
7 Sady, Fereshteh
7 Takagi, Hiroyuki
7 Tsukada, Makoto
7 Zivari-Kazempour, Abbas
6 Alizadeh, Badrkhan
6 Ghaemi, Mohammad Bagher
6 Hosseini, Maliheh
6 Kobayashi, Yuji
6 Moslehian, Mohammad Sal
6 Pečarić, Josip
5 Baias, Alina-Ramona
5 Ciepliński, Krzysztof
5 Ebadian, Ali
5 Eghbali, Nasrin
5 Jamshidi, Arya
5 Mićić, Jadranka
5 Rassias, John Michael
4 Abtahi, Fatemeh
4 Agarwal, Ravi P.
4 Arambašić, Ljiljana
4 Font, Juan J.
4 Inoue, Jyunji
4 Jung, Yong-Soo
4 Kawamura, Kazuhiro
4 Li, XueZhu
4 Murali, Ramdoss
4 Oka, Hirokazu
4 Selvan, Arumugam Ponmana
4 Shirayanagi, Kiyoshi
4 Ulger, Ali
4 Zhou, Yong
3 Arumugam, Ponmana Selvan
3 Bami, Mahmood Lashkarizadeh
3 Cădariu, Liviu I.
3 Chen, Wei
3 Choi, Ginkyu
3 Chu, Yuming
3 Fechner, Włodzimierz
3 Fečkan, Michal
3 Fošner, Ajda
3 Fukutaka, Ryuma
3 Hatori, Osamu
3 Izumida, Tamotsu
3 Kaĭgorodov, Ivan B.
3 Kalvandi, Vida
3 Khodaei, Hamid
3 Kim, Byungbae
3 Lau, Anthony To-Ming
3 Min, Seungwook
3 Najati, Abbas
3 Rajić, Rajna
3 Ramdoss, Murali
3 Rezaei, Hamid
3 Seo, Yuki
3 Shah, Kamal
3 Wei, Guiwu
2 Abdollahpour, Mohammad Reza
2 Alghamdi, Maryam A.
2 Ali, Wajid
2 Alinejad, Ahmad
2 Anderson, Douglas Robert
2 Ansari-Piri, Esmaeil
2 Başcı, Yasemin
2 Ben Makhlouf, Abdellatif
2 Bodaghi, Abasalt
2 Bohner, Martin J.
2 Cîmpean, Dalia Sabina
2 Dabhi, Prakash A.
2 Dadipour, Farzad
2 El-hady, El-sayed
2 Faisal, Shah
2 Forrest, Brian E.
2 Fozouni, Mohammad
2 Fujii, Jun Ichi
2 Gao, Hui
2 Ghobadipour, Norouz
2 Hamza, Alaa E.
2 Hayata, Takahiro
2 Hiai, Fumio
2 Huang, Jinghao
2 Iričanin, Bratislav D.
...and 325 more Authors
all top 5

Cited in 140 Serials

30 Journal of Inequalities and Applications
24 Journal of Mathematical Analysis and Applications
19 Abstract and Applied Analysis
18 Applied Mathematics Letters
15 Linear Algebra and its Applications
13 Discrete Dynamics in Nature and Society
13 Journal of Function Spaces
12 Advances in Difference Equations
10 Mediterranean Journal of Mathematics
8 Applied Mathematics and Computation
8 Results in Mathematics
6 Tokyo Journal of Mathematics
6 AIMS Mathematics
5 Rendiconti del Circolo Matemàtico di Palermo. Serie II
5 Acta Mathematica Hungarica
5 Aequationes Mathematicae
5 Mathematical Inequalities & Applications
5 Symmetry
4 Communications in Algebra
4 Computers & Mathematics with Applications
4 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods
4 Proceedings of the American Mathematical Society
4 Semigroup Forum
4 Applied Mathematics E-Notes
4 Bulletin of the Malaysian Mathematical Sciences Society. Second Series
4 Journal of Mathematical Extension
3 Bulletin of the Australian Mathematical Society
3 Fuzzy Sets and Systems
3 International Journal of Mathematics and Mathematical Sciences
3 Manuscripta Mathematica
3 Bulletin des Sciences Mathématiques
3 Acta Mathematica Sinica. English Series
3 Qualitative Theory of Dynamical Systems
3 Kragujevac Journal of Mathematics
3 Journal of Applied Mathematics and Computing
3 Central European Journal of Mathematics
3 Journal of Mathematical Inequalities
2 Journal of Mathematical Physics
2 Mathematical Notes
2 Ukrainian Mathematical Journal
2 Annali di Matematica Pura ed Applicata. Serie Quarta
2 Canadian Mathematical Bulletin
2 Journal of Approximation Theory
2 Journal of Computational and Applied Mathematics
2 Proceedings of the Japan Academy. Series A
2 Quaestiones Mathematicae
2 Transactions of the American Mathematical Society
2 Expositiones Mathematicae
2 Indagationes Mathematicae. New Series
2 Filomat
2 The Journal of Fourier Analysis and Applications
2 International Journal of Nonlinear Sciences and Numerical Simulation
2 Nonlinear Functional Analysis and Applications
2 Nihonkai Mathematical Journal
2 Journal of Intelligent and Fuzzy Systems
2 Hacettepe Journal of Mathematics and Statistics
2 Journal of Function Spaces and Applications
2 International Journal of Geometric Methods in Modern Physics
2 Fixed Point Theory and Applications
2 Complex Analysis and Operator Theory
2 Differential Equations and Applications
2 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM
2 Afrika Matematika
1 Analysis Mathematica
1 Indian Journal of Pure & Applied Mathematics
1 Linear and Multilinear Algebra
1 Periodica Mathematica Hungarica
1 Rocky Mountain Journal of Mathematics
1 Chaos, Solitons and Fractals
1 Advances in Mathematics
1 Annales Universitatis Mariae Curie-Skłodowska. Sectio A. Mathematica
1 Archiv der Mathematik
1 Dissertationes Mathematicae
1 Journal of the Korean Mathematical Society
1 Journal of Multivariate Analysis
1 Journal of Number Theory
1 Kyungpook Mathematical Journal
1 Mathematische Nachrichten
1 Monatshefte für Mathematik
1 Numerical Functional Analysis and Optimization
1 Proceedings of the Edinburgh Mathematical Society. Series II
1 Publications de l’Institut Mathématique. Nouvelle Série
1 Tamkang Journal of Mathematics
1 Tôhoku Mathematical Journal. Second Series
1 Topology and its Applications
1 Bulletin of the Korean Mathematical Society
1 Acta Applicandae Mathematicae
1 Constructive Approximation
1 Proceedings of the Indian Academy of Sciences. Mathematical Sciences
1 Tatra Mountains Mathematical Publications
1 Topology Proceedings
1 Computational and Applied Mathematics
1 Opuscula Mathematica
1 Journal of Difference Equations and Applications
1 Sbornik: Mathematics
1 Discrete and Continuous Dynamical Systems
1 Mathematical Problems in Engineering
1 Differential Equations and Dynamical Systems
1 Honam Mathematical Journal
1 Positivity
...and 40 more Serials
all top 5

Cited in 42 Fields

125 Difference and functional equations (39-XX)
121 Functional analysis (46-XX)
118 Ordinary differential equations (34-XX)
111 Operator theory (47-XX)
43 Real functions (26-XX)
22 Partial differential equations (35-XX)
21 Approximations and expansions (41-XX)
19 Abstract harmonic analysis (43-XX)
15 Integral equations (45-XX)
14 Topological groups, Lie groups (22-XX)
12 Dynamical systems and ergodic theory (37-XX)
10 Linear and multilinear algebra; matrix theory (15-XX)
8 Nonassociative rings and algebras (17-XX)
7 Integral transforms, operational calculus (44-XX)
5 Harmonic analysis on Euclidean spaces (42-XX)
5 General topology (54-XX)
5 Numerical analysis (65-XX)
5 Game theory, economics, finance, and other social and behavioral sciences (91-XX)
4 Combinatorics (05-XX)
4 Associative rings and algebras (16-XX)
4 Functions of a complex variable (30-XX)
4 Differential geometry (53-XX)
4 Biology and other natural sciences (92-XX)
3 Mathematical logic and foundations (03-XX)
3 Probability theory and stochastic processes (60-XX)
2 General and overarching topics; collections (00-XX)
2 Order, lattices, ordered algebraic structures (06-XX)
2 Group theory and generalizations (20-XX)
2 Sequences, series, summability (40-XX)
2 Calculus of variations and optimal control; optimization (49-XX)
2 Global analysis, analysis on manifolds (58-XX)
2 Statistics (62-XX)
2 Mechanics of particles and systems (70-XX)
2 Operations research, mathematical programming (90-XX)
1 Number theory (11-XX)
1 Field theory and polynomials (12-XX)
1 Commutative algebra (13-XX)
1 Algebraic geometry (14-XX)
1 Potential theory (31-XX)
1 Computer science (68-XX)
1 Mechanics of deformable solids (74-XX)
1 Fluid mechanics (76-XX)

Citations by Year