Edit Profile (opens in new tab) Izuchi, Keiji Co-Author Distance Author ID: izuchi.keiji Published as: Izuchi, Keiji; Izuchi, Kei Ji; Izuchi, K.; Izuchi, Kei-Ji; Izuchi, Key Ji; Keiji, Izuchi more...less Documents Indexed: 178 Publications since 1971 3 Contributions as Editor · 2 Further Contributions Co-Authors: 38 Co-Authors with 126 Joint Publications 499 Co-Co-Authors all top 5 Co-Authors 57 single-authored 48 Izuchi, Yuko 36 Izuchi, Kou Hei 19 Ohno, Shûichi 6 Gorkin, Pamela B. 5 Chen, Yong 5 Guillory, Carroll J. 5 Lee, Young Joo 5 Matsugu, Yasuo 4 Hosokawa, Takuya 4 Ishii, Takashi 4 Nakazi, Takahiko 3 Hatori, Osamu 3 Hirasawa, Go 3 Mortini, Raymond 3 Takagi, Hiroyuki 3 Takahasi, Sin-Ei 3 Watanabe, Seiji 3 Yang, Rongwei 2 Choa, Jun Soo 2 Guo, Kunyu 2 Jimbo, Toshiya 2 Kasuga, Kazuhiro 2 Naito, Masatoshi 2 Seto, Michio 2 Tsurumi, Kazuyuki 2 Younis, Rahman M. 2 Zheng, Dechao 1 Arai, Hitoshi 1 Canoy, Sergio jun. 1 Chen, Xiaoman 1 Choda, Marie 1 Enomoto, Masatoshi 1 Hasumim, Morisuke 1 Hayashi, Mikihiro 1 Hiai, Fumio 1 Homma, Katsumi 1 Kayano, Takashi 1 Kim, Hong Oh 1 Luo, Shuaibing 1 Mochizuki, Nozomu 1 Nakai, Mitsuru 1 Nakamura, Yoshihiro 1 Nakazato, Hiroshi 1 Narita, Junichiro 1 Nguyen Quang Dieu 1 Niwa, Norio 1 Saitô, Kazuyuki 1 Saito, Kichisuke 1 Sarason, Donald Erik 1 Shimizu, Tetsuhiro 1 Stroethoff, Karel 1 Suárez, Fernando Daniel 1 Wada, Junzo 1 Watanabe, Keiichi 1 Yale, Keith 1 Yamamoto, Takanori all top 5 Serials 12 Proceedings of the American Mathematical Society 8 Journal of Mathematical Analysis and Applications 8 Acta Scientiarum Mathematicarum 8 Integral Equations and Operator Theory 7 Journal of Functional Analysis 7 RIMS Kokyuroku 6 Archiv der Mathematik 5 Houston Journal of Mathematics 5 Canadian Journal of Mathematics 5 Journal of the Mathematical Society of Japan 5 Michigan Mathematical Journal 4 Studia Mathematica 4 Journal of the Korean Mathematical Society 4 Reports of Faculty of Engineering. Kanagawa University 4 Science Reports of Research Institute for Engineering 4 Complex Variables. Theory and Application 4 Nihonkai Mathematical Journal 4 Complex Variables and Elliptic Equations 3 Rocky Mountain Journal of Mathematics 3 Colloquium Mathematicum 3 Mathematica Japonica 3 Pacific Journal of Mathematics 3 Transactions of the American Mathematical Society 3 Yokohama Mathematical Journal 3 Journal of Operator Theory 3 Science Reports of the Tokyo Kyoiku Daigaku, Section A 2 Canadian Mathematical Bulletin 2 Glasgow Mathematical Journal 2 Hokkaido Mathematical Journal 2 Indiana University Mathematics Journal 2 Journal of Approximation Theory 2 Journal of the London Mathematical Society. Second Series 2 Journal für die Reine und Angewandte Mathematik 2 Topology and its Applications 2 Bulletin of the Korean Mathematical Society 2 The New York Journal of Mathematics 2 Mathematical Proceedings of the Royal Irish Academy 2 Computational Methods and Function Theory 2 Complex Analysis and Operator Theory 2 RIMS Kokyuroku 1 Journal d’Analyse Mathématique 1 Acta Mathematica Vietnamica 1 Bulletin of the London Mathematical Society 1 Duke Mathematical Journal 1 Illinois Journal of Mathematics 1 The Journal of the Indian Mathematical Society. New Series 1 Mathematica Scandinavica 1 Mathematische Zeitschrift 1 Rendiconti del Circolo Matemàtico di Palermo. Serie II 1 Tôhoku Mathematical Journal. Second Series 1 Tokyo Journal of Mathematics 1 Approximation Theory and its Applications 1 Revista Matemática Iberoamericana 1 Sugaku Expositions 1 Proceedings of the Royal Irish Academy. Section A, Mathematical and Physical Sciences 1 Bulletin of the Polish Academy of Sciences, Mathematics 1 Far East Journal of Mathematical Sciences 1 Acta Mathematica Sinica. English Series 1 Journal of the Australian Mathematical Society 1 Acta Mathematica Scientia. Series B. (English Edition) 1 Central European Journal of Mathematics 1 Operators and Matrices 1 Banach Journal of Mathematical Analysis 1 International Journal of Functional Analysis, Operator Theory and Applications 1 Annals of Functional Analysis all top 5 Fields 100 Functional analysis (46-XX) 85 Operator theory (47-XX) 68 Functions of a complex variable (30-XX) 39 Several complex variables and analytic spaces (32-XX) 18 Abstract harmonic analysis (43-XX) 12 Approximations and expansions (41-XX) 5 General and overarching topics; collections (00-XX) 5 Harmonic analysis on Euclidean spaces (42-XX) 4 Topological groups, Lie groups (22-XX) 3 Measure and integration (28-XX) 3 Potential theory (31-XX) 1 Real functions (26-XX) 1 General topology (54-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 108 Publications have been cited 561 times in 285 Documents Cited by ▼ Year ▼ Topological structure of the space of weighted composition operators on \(H^\infty\). Zbl 1098.47025 Hosokawa, Takuya; Izuchi, Keiji; Ohno, Shûichi 39 2005 Isolated points and essential components of composition operators on \(H^\infty\). Zbl 1008.47031 Hosokawa, Takuya; Izuchi, Keiji; Zheng, Dechao 36 2002 Backward shift invariant subspaces in the bidisc. II. Zbl 1055.47009 Izuchi, Keiji; Nakazi, Takahiko; Seto, Michio 33 2004 Composition operators on Fock type spaces. Zbl 1199.30273 Guo, Kunyu; Izuchi, Keiji 30 2008 Interpolating Blaschke products and division in Douglas algebras. Zbl 0559.46022 Guillory, Carroll; Izuchi, Keiji; Sarason, Donald 26 1984 Essential norms of differences of composition operators on \(H^{\infty}\). Zbl 1100.47022 Hosokawa, Takuya; Izuchi, Keiji 16 2005 \(N_\phi\)-type quotient modules on the torus. Zbl 1175.47007 Izuchi, Keiji; Yang, Rongwei 15 2008 Ranks of invariant subspaces of the Hardy space over the bidisk. Zbl 1234.47002 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 13 2011 Higher order hulls in \(H^\infty\). II. Zbl 0982.46035 Gorkin, Pamela; Izuchi, Keiji; Mortini, Raymond 12 2000 Rank-one commutators on invariant subspaces of the Hardy space on the bidisk. Zbl 1099.47003 Izuchi, Keiji; Izuchi, Kou Hei 12 2006 Wandering subspaces and the Beurling type theorem. I. Zbl 1219.47017 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 12 2010 Countably generated Douglas algebras. Zbl 0608.46028 Keiji, Izuchi 11 1987 Blaschke products and the rank of backward shift invariant subspaces over the bidisk. Zbl 1228.32006 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 11 2011 Unitary equivalence of invariant subspaces in the polydisk. Zbl 0649.47005 Izuchi, Keiji 10 1987 Path connected components in weighted composition operators on \(h^\infty\) and \(H^\infty\) with the operator norm. Zbl 1282.47048 Izuchi, Kei Ji; Izuchi, Yuko; Ohno, Shûichi 10 2013 Bourgain algebras of Douglas algebras. Zbl 0763.46046 Gorkin, Pamela; Izuchi, Keiji; Mortini, Raymond 10 1992 Linear combinations of composition operators on \(H^{\infty }\). Zbl 1151.47035 Izuchi, Kei Ji; Ohno, Shûichi 10 2008 Backward shift invariant subspaces in the bidisc. III. Zbl 1087.47007 Izuchi, Keiji; Nakazi, Takahiko; Seto, Michio 9 2004 Wandering subspaces and the Beurling type theorem. II. Zbl 1220.47010 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 9 2010 Backward shift invariant subspaces in the bidisc. Zbl 1055.47008 Izuchi, Keiji; Nakazi, Takahiko 8 2004 Some counterexamples in subalgebras of \(L^ \infty{} (D)\). Zbl 0745.46055 Gorkin, Pamela; Izuchi, Keiji 8 1991 Interpolating Blaschke products and factorization theorems. Zbl 0830.46042 Izuchi, Keiji 7 1994 QC-level sets and quotients of Douglas algebras. Zbl 0579.46037 Izuchi, Keiji 7 1986 Factorization of Blaschke products. Zbl 0783.30028 Izuchi, Keiji 7 1993 Strictly contractive compression on backward shift invariant subspaces over the torus. Zbl 1062.47017 Izuchi, Keiji; Yang, Rongwei 7 2004 Rank-one commutators on invariant subspaces of the hardy space on the bidisk. II. Zbl 1164.47012 Izuchi, Key Ji; Izuchi, Kou Hei 7 2008 Algebras of bounded analytic functions containing the disk algebra. Zbl 0575.46046 Izuchi, Keiji; Izuchi, Yuko 5 1986 Topological structure of the space of weighted composition operators between different Hardy spaces. Zbl 1302.47050 Izuchi, Kei Ji; Ohno, Shûichi 5 2014 Selfadjoint commutators and invariant subspaces on the torus. Zbl 0847.47006 Izuchi, Keiji; Ohno, Shûichi 5 1994 Weighted composition operators on the space of bounded harmonic functions. Zbl 1241.47023 Izuchi, Kei Ji; Izuchi, Yuko; Ohno, Shûichi 5 2011 Ranks of backward shift invariant subspaces of the Hardy space over the bidisk. Zbl 1281.47004 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 5 2013 A Coburn type theorem on the Hardy space of the bidisk. Zbl 06897108 Chen, Yong; Izuchi, Kei Ji; Lee, Young Joo 4 2018 Compact perturbations of Hankel operators. Zbl 1090.47017 Chen, Xiaoman; Guo, Kunyu; Izuchi, Keiji; Zheng, Dechao 4 2005 Extreme and exposed points in quotients of Douglas algebras by \(H^{\infty}\) or \(H^{\infty}+C\). Zbl 0573.46030 Izuchi, Keiji; Izuchi, Yuko 4 1984 Zero sets of interpolating Blaschke products. Zbl 0579.46036 Izuchi, Keiji 4 1985 Kernels of Toeplitz operators on the Hardy space over the bidisk. Zbl 06695418 Chen, Yong; Izuchi, Kei Ji; Lee, Young Joo 4 2017 Interpolating sequences in the maximal ideal space of \(H^ \infty\). II. Zbl 0799.46062 Izuchi, Keiji 4 1992 Sequential BKW-operators and function algebras. Zbl 0861.41014 Izuchi, Keiji; Takagi, Hiroyuki; Watanabe, Seiji 4 1996 The Bochner-Schoenberg-Eberlein theorem and spaces of analytic functions on the open unit disc. Zbl 0754.30038 Izuchi, Keiji 4 1992 Rank-one cross commutators on backward shift invariant subspaces on the bidisk. Zbl 1193.47011 Izuchi, Kei Ji; Izuchi, Kou Hei 4 2009 Commutativity in two-variable Jordan blocks on the Hardy space. Zbl 1275.47015 Izuchi, Kei Ji; Izuchi, Kou Hei 4 2012 Composition operators on the space of bounded harmonic functions. Zbl 1155.47027 Choa, Jun Soo; Izuchi, Kei Ji; Ohno, Shûichi 4 2008 Quasi-wandering subspaces in the Bergman space. Zbl 1219.47016 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 4 2010 Hilbert-schmidtness of some finitely generated submodules in \(H^2(\mathbb{D}^2)\). Zbl 06879567 Luo, Shuaibing; Izuchi, Kei Ji; Yang, Rongwei 3 2018 Trivial points in the maximal ideal space of \(H^\infty\). Zbl 0982.46036 Ishii, Takashi; Izuchi, Keiji 3 1999 Douglas algebras which admit codimension 1 linear isometries. Zbl 0977.46029 Izuchi, Keiji 3 2001 Weak infinite powers of Blaschke products. Zbl 0914.30022 Izuchi, Keiji 3 1998 Annihilating measures for Douglas algebras. Zbl 0573.46031 Izuchi, Keiji; Izuchi, Yuko 3 1984 Extreme points of unit balls of quotients of \(L^{\infty}\) by Douglas algebras. Zbl 0575.46048 Izuchi, Keiji 3 1986 Inner functions and division in Douglas algebras. Zbl 0614.46045 Izuchi, Keiji; Izuchi, Yuko 3 1986 Bourgain algebras of spaces of harmonic functions. Zbl 0916.46043 Izuchi, Keiji; Stroethoff, Karel; Yale, Keith 3 1994 Selfadjoint commutators and invariant subspaces on the torus. II. Zbl 0899.47005 Izuchi, Keiji; Ohno, Shûichi 3 1997 Cross commutators on backward shift invariant subspaces over the bidisk. Zbl 1115.47004 Izuchi, Kei Ji; Izuchi, Kou Hey 3 2006 Bourgain algebras of the disk, polydisk, and ball algebras. Zbl 0806.46061 Izuchi, Keiji 3 1992 On a class of closed prime ideals in \(H^{\infty}\). Zbl 1088.30028 Izuchi, Keiji; Izuchi, Yuko 3 2005 \(K\)-hulls of \(QC\)-level sets. Zbl 1038.46043 Izuchi, Keiji 3 2003 Factorization of Blaschke products and primary ideals in \(H^{\infty }\). Zbl 1207.46045 Izuchi, Kei Ji; Izuchi, Yuko 3 2010 Composition operators induced by analytic maps to the polydisk. Zbl 1257.47027 Izuchi, Kei Ji; Nguyen, Quang Dieu; Ohno, Shûichi 3 2012 Convolution powers of singular-symmetric measures. Zbl 0396.43004 Izuchi, Keiji 2 1979 Sequential Korovkin type theorems and weighted composition operators. Zbl 0858.41019 Izuchi, K.; Takagi, H.; Watanabe, S. 2 1996 Singular inner functions of \(L^1\)-type. II. Zbl 0982.46037 Izuchi, Keiji 2 2001 Sequences of powers of Toeplitz operators on the Hardy space. Zbl 07027296 Chen, Yong; Izuchi, Kei Ji; Lee, Young Joo 2 2018 Outer functions and invariant subspaces on the torus. Zbl 0822.47008 Izuchi, Keiji; Matsugu, Yasuo 2 1994 Exposed and strongly exposed points in quotient spaces of Douglas algebras. Zbl 0573.46032 Izuchi, Keiji 2 1984 A geometrical characterization of singly generated Douglas algebras. Zbl 0577.46056 Izuchi, Keiji 2 1986 Path connected components in weighted composition operators on \(h^\infty\) and \(H^\infty\) with the essential operator norm. Zbl 1303.47045 Izuchi, Kei Ji; Izuchi, Yuko; Ohno, Shûichi 2 2014 Boundary vs. interior conditions associated with weighted composition operators. Zbl 1307.47033 Izuchi, Kei Ji; Izuchi, Yuko; Ohno, Shûichi 2 2014 Minimal envelopes of Douglas algebras and Bourgain algebras. Zbl 0816.46048 Guillory, Carroll; Izuchi, Keiji 2 1993 Common zero sets of equivalent singular inner functions. Zbl 1074.46034 Izuchi, Keiji 2 2004 Interpolating sequences in the maximal ideal space of \(H^{\infty{}}\). Zbl 0754.46037 Izuchi, Keiji 2 1991 Gleason parts and countably generated closed ideals in \(H^\infty\). Zbl 1279.30055 Izuchi, Kei Ji; Izuchi, Yuko 2 2013 Mixed invariant subspaces over the bidisk. Zbl 1275.32007 Izuchi, Kei Ji; Izuchi, Kou Hei; Naito, Masatoshi 2 2011 Mutually prime sequences of inner functions and the ranks of subspaces over the bidisk. Zbl 1264.47012 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 2 2012 The structure of the maximal ideal space of \(H^\infty\). Zbl 1279.30054 Izuchi, Keiji 2 2004 Factorization of Blaschke products and ideal theory in \(H^{\infty }\). Zbl 1250.30049 Izuchi, Kei Ji; Izuchi, Yuko 2 2011 Ranks of cross commutators on backward shift invariant subspaces over the bidisk. Zbl 1202.47006 Izuchi, Kei Ji; Izuchi, Kou Hei 2 2010 On a problem of J. L. Taylor. Zbl 0319.43003 Izuchi, Keiji 1 1975 A remark on a certain measure in Rad \(L_1(G)\). Zbl 0354.43004 Izuchi, Keiji 1 1976 Zero based invariant subspaces and fringe operators over the bidisk. Zbl 1353.47008 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 1 2016 BKW-operators on the interval and the sequence spaces. Zbl 0861.41015 Izuchi, Keiji; Takahasi, Sin-Ei 1 1996 Spreading Blaschke products and homeomorphic parts. Zbl 1019.46032 Izuchi, Keiji 1 2000 Weak infinite products of Blaschke products. Zbl 0998.46022 Izuchi, Keiji 1 2001 Trivial points in the maximal ideal space of \(H^\infty\). II. Zbl 1211.46059 Ishii, Takashi; Izuchi, Keiji 1 2001 Fredholm indices of some fringe operators over the bidisk. Zbl 1413.47018 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 1 2017 Interpolating Blaschke products of type \(G\). Zbl 0865.30054 Guillory, Carroll; Izuchi, Keiji 1 1996 Closed subalgebras of bounded analytic functions containing the disk algebra. Zbl 0587.46047 Izuchi, Keiji 1 1981 Restricted left invertible Toeplitz operators on multiply connected domains. Zbl 0622.47024 Izuchi, Keiji; Ohno, Shûichi 1 1987 Interpolating sequences in a homeomorphic part of \(H^{\infty}\). Zbl 0726.46034 Izuchi, Keiji 1 1991 Rank of finite Rudin type backward shift invariant subspaces over the bidisk. Zbl 1422.47015 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 1 2017 Splitting invariant subspaces in the Hardy space over the bidisk. Zbl 1422.47016 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 1 2017 Weighted composition operators between Hilbert spaces of analytic functions in the operator norm and Hilbert-Schmidt norm topologies. Zbl 1297.47026 Hosokawa, Takuya; Izuchi, Kei Ji; Ohno, Shûichi 1 2015 Weighted composition operators whose ranges contain the disk algebra. Zbl 1319.47021 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 1 2015 Path-connected components in weighted composition operators on the disk algebra with the essential operator norm. Zbl 1325.30052 Izuchi, Kei Ji; Izuchi, Yuko 1 2015 Inner functions and division in Douglas algebras. II. Zbl 0663.46048 Izuchi, K.; Izuchi, Y. 1 1988 The one-radius theorem is not true for bounded real-analytic functions. Zbl 0673.31002 Izuchi, K. 1 1988 Interpolating Blaschke products and nonanalytic sets. Zbl 0795.30031 Guillory, Carroll; Izuchi, Keiji 1 1993 BKW-operators on the interval \([0,1]\). Zbl 0897.41014 Izuchi, Keiji; Takahasi, Sin-Ei 1 1997 Bourgain algebras on the maximal ideal space of \(H^ \infty\). Zbl 0843.46037 Gorkin, Pamela; Izuchi, Keiji 1 1995 A note on maximal inner spaces of the Bergman space. Zbl 1079.47005 Choa, Jun Soo; Izuchi, Keiji 1 2005 Sums of weighted composition operators on \(H^\infty\). Zbl 1229.47035 Izuchi, Kei Ji; Ohno, Shûichi 1 2011 A Coburn type theorem on the Hardy space of the bidisk. Zbl 06897108 Chen, Yong; Izuchi, Kei Ji; Lee, Young Joo 4 2018 Hilbert-schmidtness of some finitely generated submodules in \(H^2(\mathbb{D}^2)\). Zbl 06879567 Luo, Shuaibing; Izuchi, Kei Ji; Yang, Rongwei 3 2018 Sequences of powers of Toeplitz operators on the Hardy space. Zbl 07027296 Chen, Yong; Izuchi, Kei Ji; Lee, Young Joo 2 2018 Kernels of Toeplitz operators on the Hardy space over the bidisk. Zbl 06695418 Chen, Yong; Izuchi, Kei Ji; Lee, Young Joo 4 2017 Fredholm indices of some fringe operators over the bidisk. Zbl 1413.47018 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 1 2017 Rank of finite Rudin type backward shift invariant subspaces over the bidisk. Zbl 1422.47015 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 1 2017 Splitting invariant subspaces in the Hardy space over the bidisk. Zbl 1422.47016 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 1 2017 Zero based invariant subspaces and fringe operators over the bidisk. Zbl 1353.47008 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 1 2016 Weighted composition operators between Hilbert spaces of analytic functions in the operator norm and Hilbert-Schmidt norm topologies. Zbl 1297.47026 Hosokawa, Takuya; Izuchi, Kei Ji; Ohno, Shûichi 1 2015 Weighted composition operators whose ranges contain the disk algebra. Zbl 1319.47021 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 1 2015 Path-connected components in weighted composition operators on the disk algebra with the essential operator norm. Zbl 1325.30052 Izuchi, Kei Ji; Izuchi, Yuko 1 2015 Topological structure of the space of weighted composition operators between different Hardy spaces. Zbl 1302.47050 Izuchi, Kei Ji; Ohno, Shûichi 5 2014 Path connected components in weighted composition operators on \(h^\infty\) and \(H^\infty\) with the essential operator norm. Zbl 1303.47045 Izuchi, Kei Ji; Izuchi, Yuko; Ohno, Shûichi 2 2014 Boundary vs. interior conditions associated with weighted composition operators. Zbl 1307.47033 Izuchi, Kei Ji; Izuchi, Yuko; Ohno, Shûichi 2 2014 Path connected components in weighted composition operators on \(h^\infty\) and \(H^\infty\) with the operator norm. Zbl 1282.47048 Izuchi, Kei Ji; Izuchi, Yuko; Ohno, Shûichi 10 2013 Ranks of backward shift invariant subspaces of the Hardy space over the bidisk. Zbl 1281.47004 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 5 2013 Gleason parts and countably generated closed ideals in \(H^\infty\). Zbl 1279.30055 Izuchi, Kei Ji; Izuchi, Yuko 2 2013 Sums of weighted composition operators on COP. Zbl 1264.47027 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 1 2013 Commutativity in two-variable Jordan blocks on the Hardy space. Zbl 1275.47015 Izuchi, Kei Ji; Izuchi, Kou Hei 4 2012 Composition operators induced by analytic maps to the polydisk. Zbl 1257.47027 Izuchi, Kei Ji; Nguyen, Quang Dieu; Ohno, Shûichi 3 2012 Mutually prime sequences of inner functions and the ranks of subspaces over the bidisk. Zbl 1264.47012 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 2 2012 Wandering subspaces and the Beurling type theorem. III. Zbl 1248.47008 Izuchi, Kei-Ji; Izuchi, Kou-Hei; Izuchi, Yuko 1 2012 Cross commutators on backward shift invariant subspaces over the bidisk. II. Zbl 1233.47005 Izuchi, Kei Ji; Izuchi, Kou Hei 1 2012 Ranks of invariant subspaces of the Hardy space over the bidisk. Zbl 1234.47002 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 13 2011 Blaschke products and the rank of backward shift invariant subspaces over the bidisk. Zbl 1228.32006 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 11 2011 Weighted composition operators on the space of bounded harmonic functions. Zbl 1241.47023 Izuchi, Kei Ji; Izuchi, Yuko; Ohno, Shûichi 5 2011 Mixed invariant subspaces over the bidisk. Zbl 1275.32007 Izuchi, Kei Ji; Izuchi, Kou Hei; Naito, Masatoshi 2 2011 Factorization of Blaschke products and ideal theory in \(H^{\infty }\). Zbl 1250.30049 Izuchi, Kei Ji; Izuchi, Yuko 2 2011 Sums of weighted composition operators on \(H^\infty\). Zbl 1229.47035 Izuchi, Kei Ji; Ohno, Shûichi 1 2011 Wandering subspaces and the Beurling type theorem. I. Zbl 1219.47017 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 12 2010 Wandering subspaces and the Beurling type theorem. II. Zbl 1220.47010 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 9 2010 Quasi-wandering subspaces in the Bergman space. Zbl 1219.47016 Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko 4 2010 Factorization of Blaschke products and primary ideals in \(H^{\infty }\). Zbl 1207.46045 Izuchi, Kei Ji; Izuchi, Yuko 3 2010 Ranks of cross commutators on backward shift invariant subspaces over the bidisk. Zbl 1202.47006 Izuchi, Kei Ji; Izuchi, Kou Hei 2 2010 Rank-one cross commutators on backward shift invariant subspaces on the bidisk. Zbl 1193.47011 Izuchi, Kei Ji; Izuchi, Kou Hei 4 2009 Equivalence classes of mixed invariant subspaces over the bidisk. Zbl 1200.47010 Izuchi, Kei Ji; Naito, Masatoshi 1 2009 Composition operators on Fock type spaces. Zbl 1199.30273 Guo, Kunyu; Izuchi, Keiji 30 2008 \(N_\phi\)-type quotient modules on the torus. Zbl 1175.47007 Izuchi, Keiji; Yang, Rongwei 15 2008 Linear combinations of composition operators on \(H^{\infty }\). Zbl 1151.47035 Izuchi, Kei Ji; Ohno, Shûichi 10 2008 Rank-one commutators on invariant subspaces of the hardy space on the bidisk. II. Zbl 1164.47012 Izuchi, Key Ji; Izuchi, Kou Hei 7 2008 Composition operators on the space of bounded harmonic functions. Zbl 1155.47027 Choa, Jun Soo; Izuchi, Kei Ji; Ohno, Shûichi 4 2008 Common zero sets of equivalent singular inner functions II. Zbl 1142.46023 Izuchi, Keiji 1 2007 Rank-one commutators on invariant subspaces of the Hardy space on the bidisk. Zbl 1099.47003 Izuchi, Keiji; Izuchi, Kou Hei 12 2006 Cross commutators on backward shift invariant subspaces over the bidisk. Zbl 1115.47004 Izuchi, Kei Ji; Izuchi, Kou Hey 3 2006 Topological structure of the space of weighted composition operators on \(H^\infty\). Zbl 1098.47025 Hosokawa, Takuya; Izuchi, Keiji; Ohno, Shûichi 39 2005 Essential norms of differences of composition operators on \(H^{\infty}\). Zbl 1100.47022 Hosokawa, Takuya; Izuchi, Keiji 16 2005 Compact perturbations of Hankel operators. Zbl 1090.47017 Chen, Xiaoman; Guo, Kunyu; Izuchi, Keiji; Zheng, Dechao 4 2005 On a class of closed prime ideals in \(H^{\infty}\). Zbl 1088.30028 Izuchi, Keiji; Izuchi, Yuko 3 2005 A note on maximal inner spaces of the Bergman space. Zbl 1079.47005 Choa, Jun Soo; Izuchi, Keiji 1 2005 Backward shift invariant subspaces in the bidisc. II. Zbl 1055.47009 Izuchi, Keiji; Nakazi, Takahiko; Seto, Michio 33 2004 Backward shift invariant subspaces in the bidisc. III. Zbl 1087.47007 Izuchi, Keiji; Nakazi, Takahiko; Seto, Michio 9 2004 Backward shift invariant subspaces in the bidisc. Zbl 1055.47008 Izuchi, Keiji; Nakazi, Takahiko 8 2004 Strictly contractive compression on backward shift invariant subspaces over the torus. Zbl 1062.47017 Izuchi, Keiji; Yang, Rongwei 7 2004 Common zero sets of equivalent singular inner functions. Zbl 1074.46034 Izuchi, Keiji 2 2004 The structure of the maximal ideal space of \(H^\infty\). Zbl 1279.30054 Izuchi, Keiji 2 2004 \(K\)-hulls of \(QC\)-level sets. Zbl 1038.46043 Izuchi, Keiji 3 2003 Sequences separating fibers in the spectrum of \(H^{\infty}\). Zbl 1030.46061 Gorkin, Pamela; Izuchi, Keiji; Mortini, Raymond 1 2003 Isolated points and essential components of composition operators on \(H^\infty\). Zbl 1008.47031 Hosokawa, Takuya; Izuchi, Keiji; Zheng, Dechao 36 2002 Douglas algebras which admit codimension 1 linear isometries. Zbl 0977.46029 Izuchi, Keiji 3 2001 Singular inner functions of \(L^1\)-type. II. Zbl 0982.46037 Izuchi, Keiji 2 2001 Weak infinite products of Blaschke products. Zbl 0998.46022 Izuchi, Keiji 1 2001 Trivial points in the maximal ideal space of \(H^\infty\). II. Zbl 1211.46059 Ishii, Takashi; Izuchi, Keiji 1 2001 Higher order hulls in \(H^\infty\). II. Zbl 0982.46035 Gorkin, Pamela; Izuchi, Keiji; Mortini, Raymond 12 2000 Spreading Blaschke products and homeomorphic parts. Zbl 1019.46032 Izuchi, Keiji 1 2000 Trivial points in the maximal ideal space of \(H^\infty\). Zbl 0982.46036 Ishii, Takashi; Izuchi, Keiji 3 1999 Weak infinite powers of Blaschke products. Zbl 0914.30022 Izuchi, Keiji 3 1998 Selfadjoint commutators and invariant subspaces on the torus. II. Zbl 0899.47005 Izuchi, Keiji; Ohno, Shûichi 3 1997 BKW-operators on the interval \([0,1]\). Zbl 0897.41014 Izuchi, Keiji; Takahasi, Sin-Ei 1 1997 Sequential BKW-operators and function algebras. Zbl 0861.41014 Izuchi, Keiji; Takagi, Hiroyuki; Watanabe, Seiji 4 1996 Sequential Korovkin type theorems and weighted composition operators. Zbl 0858.41019 Izuchi, K.; Takagi, H.; Watanabe, S. 2 1996 BKW-operators on the interval and the sequence spaces. Zbl 0861.41015 Izuchi, Keiji; Takahasi, Sin-Ei 1 1996 Interpolating Blaschke products of type \(G\). Zbl 0865.30054 Guillory, Carroll; Izuchi, Keiji 1 1996 Bourgain algebras on the maximal ideal space of \(H^ \infty\). Zbl 0843.46037 Gorkin, Pamela; Izuchi, Keiji 1 1995 Interpolating Blaschke products and factorization theorems. Zbl 0830.46042 Izuchi, Keiji 7 1994 Selfadjoint commutators and invariant subspaces on the torus. Zbl 0847.47006 Izuchi, Keiji; Ohno, Shûichi 5 1994 Bourgain algebras of spaces of harmonic functions. Zbl 0916.46043 Izuchi, Keiji; Stroethoff, Karel; Yale, Keith 3 1994 Outer functions and invariant subspaces on the torus. Zbl 0822.47008 Izuchi, Keiji; Matsugu, Yasuo 2 1994 Factorization of Blaschke products. Zbl 0783.30028 Izuchi, Keiji 7 1993 Minimal envelopes of Douglas algebras and Bourgain algebras. Zbl 0816.46048 Guillory, Carroll; Izuchi, Keiji 2 1993 Interpolating Blaschke products and nonanalytic sets. Zbl 0795.30031 Guillory, Carroll; Izuchi, Keiji 1 1993 Bourgain algebras of Douglas algebras. Zbl 0763.46046 Gorkin, Pamela; Izuchi, Keiji; Mortini, Raymond 10 1992 Interpolating sequences in the maximal ideal space of \(H^ \infty\). II. Zbl 0799.46062 Izuchi, Keiji 4 1992 The Bochner-Schoenberg-Eberlein theorem and spaces of analytic functions on the open unit disc. Zbl 0754.30038 Izuchi, Keiji 4 1992 Bourgain algebras of the disk, polydisk, and ball algebras. Zbl 0806.46061 Izuchi, Keiji 3 1992 Maximal Douglas subalgebras and minimal support points. Zbl 0760.46046 Guillory, Carroll; Izuchi, Keiji 1 1992 Some counterexamples in subalgebras of \(L^ \infty{} (D)\). Zbl 0745.46055 Gorkin, Pamela; Izuchi, Keiji 8 1991 Interpolating sequences in the maximal ideal space of \(H^{\infty{}}\). Zbl 0754.46037 Izuchi, Keiji 2 1991 Interpolating sequences in a homeomorphic part of \(H^{\infty}\). Zbl 0726.46034 Izuchi, Keiji 1 1991 Orbits in the maximal ideal space of \(H^ \infty\). Zbl 0760.46048 Izuchi, Keiji 1 1991 Inner functions and division in Douglas algebras. II. Zbl 0663.46048 Izuchi, K.; Izuchi, Y. 1 1988 The one-radius theorem is not true for bounded real-analytic functions. Zbl 0673.31002 Izuchi, K. 1 1988 Countably generated Douglas algebras. Zbl 0608.46028 Keiji, Izuchi 11 1987 Unitary equivalence of invariant subspaces in the polydisk. Zbl 0649.47005 Izuchi, Keiji 10 1987 Restricted left invertible Toeplitz operators on multiply connected domains. Zbl 0622.47024 Izuchi, Keiji; Ohno, Shûichi 1 1987 QC-level sets and quotients of Douglas algebras. Zbl 0579.46037 Izuchi, Keiji 7 1986 Algebras of bounded analytic functions containing the disk algebra. Zbl 0575.46046 Izuchi, Keiji; Izuchi, Yuko 5 1986 Extreme points of unit balls of quotients of \(L^{\infty}\) by Douglas algebras. Zbl 0575.46048 Izuchi, Keiji 3 1986 Inner functions and division in Douglas algebras. Zbl 0614.46045 Izuchi, Keiji; Izuchi, Yuko 3 1986 A geometrical characterization of singly generated Douglas algebras. Zbl 0577.46056 Izuchi, Keiji 2 1986 Zero sets of interpolating Blaschke products. Zbl 0579.46036 Izuchi, Keiji 4 1985 ...and 8 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 207 Authors 58 Izuchi, Keiji 26 Izuchi, Yuko 25 Izuchi, Kou Hei 17 Mortini, Raymond 15 Gorkin, Pamela B. 14 Ohno, Shûichi 10 Sarkar, Jaydeb 10 Wolf, Elke 8 Lê Hai Khôi 7 Nakazi, Takahiko 7 Phạm Trọng Tiến 7 Yu, Tao 7 Zhou, Zehua 6 Guo, Kunyu 6 Hosokawa, Takuya 6 Wang, Maofa 6 Yang, Rongwei 6 Yang, Yixin 5 Colonna, Flavia 5 Krishna Das, B. 5 Lindström, Mikael 5 Mengestie, Tesfa Y. 5 Wu, Changhui 5 Younis, Rahman M. 5 Zheng, Dechao 4 Bonet Solves, José 4 Chattopadhyay, Arup 4 Chen, Yong 4 Lee, Young Joo 4 Lu, Yufeng 4 Nicolau, Artur 4 Seyoum, Werkaferahu 4 Sharma, Ajay Kumar 4 Stević, Stevo 3 Dai, Jineng 3 Easley, Glenn R. 3 Han, Kaikai 3 Ivanov, Oleg Vladimirovich 3 Krishan, Ram 3 Seto, Michio 3 Wang, Penghui 3 Zhao, Liankuo 2 Abanin, Aleksandr Vasil’evich 2 Abkar, Ali 2 Allen, Robert F. 2 Amiri, Mitra 2 Araujo, Jesús 2 Axler, Sheldon Jay 2 Beltrán-Meneu, María J. 2 Bhattacharyya, Tirthankar 2 Bickel, Kelly 2 Bouya, Brahim 2 Burdak, Zbigniew 2 Chen, Cui 2 Choe, Boo Rim 2 Ezzahraoui, Hamid 2 Fang, Zhongshan 2 Feeman, Timothy G. 2 Galindo, Pablo 2 Gallardo-Gutiérrez, Eva Antonia 2 Gamelin, Theodore W. 2 Guillory, Carroll J. 2 Guo, Xin 2 Hartmann, Andreas 2 He, Wei 2 Jiang, Zhijie 2 Koo, Hyungwoon 2 Liang, Yuxia 2 Liaw, Constanze 2 Luo, Shuaibing 2 Massaneda, Xavier 2 Mbekhta, Mostafa 2 Nieminen, Pekka J. 2 Qin, Jie 2 Qin, Yueshi 2 Rejali, Ali 2 Sakhnovich, Alexander L. 2 Sarkar, Srijan 2 Sharma, Mehak 2 Stankov, Dimcho K. 2 Suárez, Fernando Daniel 2 Taş, Emre 2 Tong, Cezhong 2 Wang, Zhijie 2 Wick, Brett Duane 2 Xu, Anjian 2 Yan, Yi 2 Yao, Xingxing 2 Zarrabi, Mohamed 2 Zerouali, El Hassan 2 Zhu, Senhua 2 Zou, Hong 1 Al Ghafri, Mohammed Said 1 Ball, Joseph Anthony 1 Bolotnikov, Vladimir 1 Cao, Guangfu 1 Carroll, Tom 1 Chen, Renyu 1 Cheng, Guozheng 1 Cheng, Shuqing ...and 107 more Authors all top 5 Cited in 85 Serials 26 Journal of Mathematical Analysis and Applications 22 Journal of Functional Analysis 18 Integral Equations and Operator Theory 17 Proceedings of the American Mathematical Society 13 Archiv der Mathematik 13 Complex Analysis and Operator Theory 11 Transactions of the American Mathematical Society 8 Complex Variables and Elliptic Equations 6 Acta Mathematica Sinica. 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RACSAM 2 Concrete Operators 2 Journal of Function Spaces 1 Analysis Mathematica 1 Mathematical Proceedings of the Cambridge Philosophical Society 1 Acta Mathematica Vietnamica 1 Annales de l’Institut Fourier 1 Canadian Mathematical Bulletin 1 Collectanea Mathematica 1 Duke Mathematical Journal 1 Inventiones Mathematicae 1 Journal of the Mathematical Society of Japan 1 Kyungpook Mathematical Journal 1 Numerical Functional Analysis and Optimization 1 Results in Mathematics 1 Bulletin of the Korean Mathematical Society 1 Chinese Annals of Mathematics. Series A 1 International Journal of Mathematics 1 The Journal of Geometric Analysis 1 Journal of Contemporary Mathematical Analysis. Armenian Academy of Sciences 1 Linear Algebra and its Applications 1 Proceedings of the Royal Society of Edinburgh. Section A. 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Series of Physical-Technical and Mathematical Sciences 1 Asian-European Journal of Mathematics 1 Communications in Mathematical Research 1 Analysis and Mathematical Physics 1 Palestine Journal of Mathematics 1 Open Mathematics 1 Advances in Operator Theory all top 5 Cited in 21 Fields 209 Operator theory (47-XX) 147 Functional analysis (46-XX) 101 Functions of a complex variable (30-XX) 65 Several complex variables and analytic spaces (32-XX) 6 Approximations and expansions (41-XX) 6 Abstract harmonic analysis (43-XX) 4 Harmonic analysis on Euclidean spaces (42-XX) 3 Linear and multilinear algebra; matrix theory (15-XX) 3 General topology (54-XX) 2 Combinatorics (05-XX) 2 Measure and integration (28-XX) 2 Sequences, series, summability (40-XX) 1 General and overarching topics; collections (00-XX) 1 History and biography (01-XX) 1 Commutative algebra (13-XX) 1 Topological groups, Lie groups (22-XX) 1 Potential theory (31-XX) 1 Dynamical systems and ergodic theory (37-XX) 1 Difference and functional equations (39-XX) 1 Global analysis, analysis on manifolds (58-XX) 1 Probability theory and stochastic processes (60-XX) Citations by Year