Edit Profile (opens in new tab) Jung, Il Bong Co-Author Distance Author ID: jung.il-bong Published as: Jung, Il Bong; Jung, I. B.; Jung, Ilbong; Jong, Il Bong; Jung Il Bong; Jung, I. more...less Homepage: https://sites.google.com/site/ilbongjung/ External Links: MGP Documents Indexed: 154 Publications since 1978, including 2 Books and 6 Additional arXiv Preprints 1 Contribution as Editor Co-Authors: 55 Co-Authors with 152 Joint Publications 1,587 Co-Co-Authors all top 5 Co-Authors 2 single-authored 35 Stochel, Jan 34 Ko, Eungil 34 Pearcy, Carl Mark Jr. 33 Exner, George R. 29 Jabłoński, Zenon Jan 11 Lee, Mi Ryeong 10 Foiaș, Ciprian 10 Jo, Young Soo 10 Li, Chunji 9 Budzyński, Piotr 9 Park, Sangsoo 8 Lee, Eun-Young 7 Kim, Yong Chan 6 Choi, Kunwook 5 Curto, Raúl Enrique 5 Lee, Woo Young 5 Park, Sun Hyun 4 Chavan, Sameer Laxman 4 Jin, Joo Young 4 Kim, Bok Ja 4 Lambert, Alan 4 Lee, Sanghun 3 Baek, Seunghwan 3 Burnap, Charles 3 Chevreau, Bernard 3 Chō, Muneo 3 Seo, Minjung 2 Cichoń, Dariusz 2 Jang, Mi Kyung 2 Kang, Joo Ho 2 Lee, Hunghwan 2 Lee, Jieun 2 Lee, Miyoung 2 Lim, Pil Sang 2 Srivastava, Hari Mohan 2 Yun, Hye Yeong 1 Ando, Tsuyoshi 1 Bae, Ju Youn 1 Bercovici, Hari 1 Chae, Younki 1 Do, Younghae 1 Dong, Yanwu 1 Furuta, Takayuki 1 Hoover, Thomas B. 1 Jeon, In Ho 1 Kubrusly, Carlos S. 1 Kwak, Jung Ah 1 Lee, Jun Ik 1 Moon, Gyung Young 1 Mortad, Mohammed Hichem 1 Park, Dongwan 1 Park, Jung Woi 1 Park, Yong Kil 1 Putinar, Mihai 1 Tanahashi, Kôtarô all top 5 Serials 23 Kyungpook Mathematical Journal 21 Journal of Mathematical Analysis and Applications 18 Integral Equations and Operator Theory 9 Proceedings of the American Mathematical Society 7 Journal of Operator Theory 5 Journal of the Korean Mathematical Society 5 Linear Algebra and its Applications 4 Studia Mathematica 4 Journal of Functional Analysis 3 Acta Scientiarum Mathematicarum 3 Indiana University Mathematics Journal 3 Journal of the Australian Mathematical Society 2 Bulletin of the Australian Mathematical Society 2 Annali di Matematica Pura ed Applicata. Serie Quarta 2 Archiv der Mathematik 2 Mathematica Japonica 2 Osaka Journal of Mathematics 2 Pacific Journal of Mathematics 2 Bulletin of the Korean Mathematical Society 2 Mathematics Journal of Toyama University 2 Complex Analysis and Operator Theory 2 Operators and Matrices 1 Houston Journal of Mathematics 1 Israel Journal of Mathematics 1 Revue Roumaine de Mathématiques Pures et Appliquées 1 Advances in Mathematics 1 Dissertationes Mathematicae 1 Glasgow Mathematical Journal 1 International Journal of Mathematics and Mathematical Sciences 1 Memoirs of the American Mathematical Society 1 Michigan Mathematical Journal 1 Transactions of the American Mathematical Society 1 Tsukuba Journal of Mathematics 1 Yokohama Mathematical Journal 1 Journal of the Australian Mathematical Society. Series A 1 Indagationes Mathematicae. New Series 1 Kyushu Journal of Mathematics 1 Filomat 1 Opuscula Mathematica 1 Mathematical Inequalities & Applications 1 RIMS Kokyuroku 1 Communications of the Korean Mathematical Society 1 Lecture Notes in Mathematics 1 Operator Theory: Advances and Applications all top 5 Fields 149 Operator theory (47-XX) 17 Integral transforms, operational calculus (44-XX) 11 Functional analysis (46-XX) 7 Combinatorics (05-XX) 4 Functions of a complex variable (30-XX) 1 General and overarching topics; collections (00-XX) 1 History and biography (01-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Real functions (26-XX) 1 Abstract harmonic analysis (43-XX) 1 Quantum theory (81-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 97 Publications have been cited 995 times in 468 Documents Cited by ▼ Year ▼ The Hardy space of analytic functions associated with certain one-parameter families of integral operators. Zbl 0774.30008 Jung, Il Bong; Kim, Yong Chan; Srivastava, H. M. 116 1993 Aluthge transforms of operators. Zbl 0996.47008 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 103 2000 Weighted shifts on directed trees. Zbl 1248.47033 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 53 2012 Spectral pictures of Aluthge transforms of operators. Zbl 1130.47300 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 34 2001 A non-hyponormal operator generating Stieltjes moment sequences. Zbl 1258.47026 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 33 2012 Complete contractivity of maps associated with the Aluthge and Duggal transforms. Zbl 1066.47037 Foiaş, Ciprian; Jung, Il Bong; Ko, Eungil; Pearcy, Carl 31 2003 Unbounded weighted composition operators in \(L^2\)-spaces. Zbl 1447.47005 Budzyński, Piotr; Jabłoński, Zenon; Jung, Il Bong; Stochel, Jan 28 2018 The iterated Aluthge transform of an operator. Zbl 1030.47021 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 27 2003 Separating partial normality classes with composition operators. Zbl 1114.47027 Burnap, Charles; Jung, Il Bong; Lambert, Alan 27 2005 On Aluthge transforms of \(p\)-hyponormal operators. Zbl 1155.47304 Chō, Muneo; Jung, Il Bong; Lee, Woo Young 19 2005 Unbounded quasinormal operators revisited. Zbl 1321.47050 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 19 2014 Quadratically hyponormal weighted shifts with two equal weights. Zbl 0961.47017 Curto, Raúl E.; Jung, Il Bong 16 2000 Quadratically hyponormal weighted shifts and their examples. Zbl 0962.47014 Jung, Il Bong; Park, Sang Soo 16 2000 A hyponormal weighted shift on a directed tree whose square has trivial domain. Zbl 1301.47043 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 16 2014 On unbounded composition operators in \(L^2\)-spaces. Zbl 1298.47034 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 16 2014 On rank-one perturbations of normal operators. Zbl 1134.47004 Foias, C.; Jung, I. B.; Ko, E.; Pearcy, C. 15 2007 Unbounded subnormal weighted shifts on directed trees. Zbl 1304.47042 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 15 2012 Subnormality of unbounded composition operators over one-circuit directed graphs: exotic examples. Zbl 1373.47022 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 15 2017 A formula for \(k\)-hyponormality of backstep extensions of subnormal weighted shifts. Zbl 0970.47019 Jung, Il Bong; Li, Chunji 14 2001 Unbounded subnormal composition operators in \(L^2\)-spaces. Zbl 1321.47056 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 14 2015 Composition operators with weak hyponormality. Zbl 1129.47023 Burnap, Charles; Jung, Il Bong 14 2008 Cubically hyponormal weighted shifts and their examples. Zbl 0959.47015 Jung, Il Bong; Park, Sang Soo 13 2000 Unbounded subnormal weighted shifts on directed trees. II. Zbl 1304.47043 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 12 2013 On rank-one perturbations of normal operators. II. Zbl 1166.47013 Foias, C.; Jung, I. B.; Ko, E.; Pearcy, C. 12 2008 Criteria for positively quadratically hyponormal weighted shifts. Zbl 1011.47017 Bae, Ju Youn; Jung, Il Bong; Exner, George R. 11 2002 On quasinilpotent operators. III. Zbl 1106.47008 Foiaş, Ciprian; Jung, Il Bong; Ko, Eungil; Pearcy, Carl 11 2005 On \(k\)-hyperexpansive operators. Zbl 1102.47012 Exner, George; Jung, Il Bong; Li, Chunji 11 2006 On \(n\)-contractive and \(n\)-hypercontractive operators. II. Zbl 1154.47016 Exner, George R.; Jung, Il Bong; Park, Sang Soo 11 2008 Some quadratically hyponormal weighted shifts. Zbl 1153.47023 Exner, George; Jung, Il Bong; Park, Dongwan 10 2008 Spectral decomposability of rank-one perturbations of normal operators. Zbl 1203.47012 Foias, C.; Jung, I. B.; Ko, E.; Pearcy, C. 9 2011 A subnormal weighted shift on a directed tree whose \(n\)th power has trivial domain. Zbl 1435.47033 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 9 2016 \(m\)-isometric operators and their local properties. Zbl 1442.47016 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 9 2020 Subnormal operators whose adjoints have rich point spectrum. Zbl 1216.47032 Jung, Il Bong; Stochel, Jan 9 2008 Normal extensions escape from the class of weighted shifts on directed trees. Zbl 1296.47029 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 8 2013 Hyperexpansive completion problem via alternating sequences; an application to subnormality. Zbl 1222.47028 Jabłoński, Zenon J.; Jung, Il Bong; Kwak, Jung Ah; Stochel, Jan 8 2011 Backward extensions of hyperexpansive operators. Zbl 1100.47018 Jabłoński, Zenon J.; Jung, Il Bong; Stochel, Jan 8 2006 Some nonhypertransitive operators. Zbl 1105.47009 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 8 2005 Taylor spectrum approach to Brownian-type operators with quasinormal entry. Zbl 1514.47042 Chavan, Sameer; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 8 2021 On quasinilpotent operators. Zbl 1060.47008 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 7 2003 Extensions and extremality of recursively generated weighted shifts. Zbl 1003.47025 Curto, Raúl E.; Jung, Il Bong; Lee, Woo Young 7 2002 On quasinilpotent operators. II. Zbl 1096.47008 Foiaş, Ciprian; Jung, Il Bong; Ko, Eungil; Pearcy, Carl 7 2004 On the iterated Duggal transforms. Zbl 1207.47018 Cho, Muneo; Jung, Il Bong; Lee, Woo Young 7 2009 Operators with absolute continuity properties: an application to quasinormality. Zbl 1283.47025 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 6 2013 On semi-weakly \(n\)-hyponormal weighted shifts. Zbl 1282.47026 Do, Younghae; Exner, George; Jung, Il Bong; Li, Chunji 6 2012 Normality via local spectral radii. Zbl 1199.47096 Cichoń, Dariusz; Jung Il Bong; Stochel, Jan 6 2009 Weakly \(n\)-hyponormal weighted shifts and their examples. Zbl 1104.47021 Exner, George; Jung, Il Bong; Park, Sang Soo 6 2006 On semi-cubically hyponormal weighted shifts with first two equal weights. Zbl 1370.47035 Baek, Seunghwan; Jung, Il Bong; Exner, George R.; Li, Chunji 6 2016 A characterization of \(k\)-hyponormality via weak subnormality. Zbl 1036.47011 Curto, Raúl E.; Jung, Il Bong; Park, Sang Soo 5 2003 Gaps of operators. Zbl 1077.47024 Jung, Il Bong; Lim, Pil Sang; Park, Sang Soo 5 2005 Gaps of operators. II. Zbl 1082.47016 Jung, Il Bong; Lee, Mi Ryeong; Lim, Pil Sang 5 2005 Joint spectra of \(n\)-tuples of generalized Aluthge transformations. Zbl 1031.47006 Chō, M.; Jeon, I. H.; Jung, I. B.; Lee, J. I.; Tanahashi, K. 5 2001 Backward extensions of hyponormal weighted shifts. Zbl 0974.47024 Jung, Il Bong; Li, Chunji 5 2000 Weighted shifts induced by Hamburger moment sequences. Zbl 1314.44006 Exner, George R.; Jin, Joo Young; Jung, Il Bong; Lee, Mi Ryeong 5 2015 A subnormal completion problem for weighted shifts on directed trees. Zbl 1443.47024 Exner, George R.; Jung, Il Bong; Stochel, Jan; Yun, Hye Yeong 5 2018 Block matrix operators and weak hyponormalities. Zbl 1197.47036 Exner, George; Jung, Il Bong; Lee, Mi Ryeong 5 2009 Quadratically hyponormal recursively generated weighted shifts. Zbl 1175.47022 Dong, Yanwu; Exner, George; Jung, Il Bong; Li, Chunji 5 2009 Conditional positive definiteness in operator theory. Zbl 1503.47027 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 5 2022 On normal products of selfadjoint operators. Zbl 1489.47041 Jung, Il Bong; Mortad, Mohammed Hichem; Stochel, Jan 5 2017 Moment sequences and backward extensions of subnormal weighted shifts. Zbl 1011.47016 Hoover, Thomas; Jung, Il Bong; Lambert, Alan 4 2002 Embry truncated complex moment problem. Zbl 1048.44001 Jung, Il Bong; Ko, Eungil; Li, Chunji; Park, Sang Soo 4 2003 Quadratically hyponormal weighted shifts with recursive tail. Zbl 1306.47020 Exner, George R.; Jung, Il Bong; Lee, Mi Ryeong; Park, Sun Hyun 4 2013 Hyperinvariant subspaces for some \(2\times 2\) operator matrices. Zbl 1435.47005 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 4 2018 A multiplicative property characterizes quasinormal composition operators in \(L^2\)-spaces. Zbl 1306.47034 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 3 2014 A subnormal completion problem for weighted shifts on directed trees. II. Zbl 1443.47025 Exner, George R.; Jung, Il Bong; Stochel, Jan; Yun, Hye Yeong 3 2020 On weighted adjacency operators associated to directed graphs. Zbl 1483.47038 Exner, George R.; Jung, Il Bong; Lee, Eun Young; Seo, Minjung 3 2017 Weak Hamburger-type weighted shifts and their examples. Zbl 1481.47045 Exner, George R.; Jin, Joo Young; Jung, Il Bong; Lee, Ji Eun 3 2018 Spectral properties of some operator matrices. Zbl 1059.47022 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 2 2003 Some multiplicities for contractions with Hilbert-Schmidt defect. Zbl 0913.47010 Exner, George R.; Jung, Il Bong 2 1998 Backward extensions of subnormal operators. Zbl 1072.47019 Jung, Il Bong; Lambert, Alan; Stochel, Jan 2 2004 Weak* continuous characters on dual algebras. Zbl 1079.47059 Chevreau, Bernard; Jung, Il Bong; Ko, Eungil; Pearcy, Carl 2 2005 Backward extensions of recursively generated weighted shifts and quadratic hyponormality. Zbl 1307.47017 Exner, George R.; Jung, Il Bong; Lee, Mi Ryeong; Park, Sun Hyun 2 2014 Rank-one perturbations of normal operators and hyponormality. Zbl 1331.47035 Jung, Il Bong; Lee, Eun Young 2 2014 An algorithm for quartically hyponormal weighted shifts. Zbl 1257.47023 Baek, Seunghwan; Jung, Il Bong; Moon, Gyung Young 2 2011 Gaps of operators via rank-one perturbations. Zbl 1208.47022 Exner, George R.; Jung, Il Bong; Lee, Eun Young; Lee, Mi Ryeong 2 2011 Complex moment matrices via Halmos-Bram and Embry conditions. Zbl 1131.44006 Li, Chunji; Jung, Il Bong; Park, Sang Soo 2 2007 A note on the spectral mapping theorem. Zbl 1153.47003 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 2 2007 Hyperinvariant subspaces for some subnormal operators. Zbl 1115.47003 Foias, C.; Jung, I. B.; Ko, E.; Pearcy, C. 2 2007 Hyperinvariant subspaces for some \(2 \times 2\) operator matrices. II. Zbl 1435.47006 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 2 2019 On the structure of conditionally positive definite algebraic operators. Zbl 1500.47035 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 2 2022 Criteria for algebraic operators to be unitary. Zbl 07706673 Jabłoński, Zenon Jan; Stochel, Jan; Jung, Il Bong 2 2023 Semi-cubic hyponormality of weighted shifts with Stampfli recursive tail. Zbl 06805234 Baek, Seunghwan; Exner, George R.; Jung, Il Bong; Li, Chunji 2 2017 Compressions of contractions in the classes \(\mathbb{A}_ n\). Zbl 0829.47035 Exner, George R.; Jung, Il Bong 1 1994 \(C_{\cdot 0}\) contractions: Dual operator algebras, Jordan models and multiplicity. Zbl 0837.47038 Exner, George R.; Jo, Young Soo; Jung, Il Bong 1 1995 Square roots of (BCP)-operators. Zbl 1067.47006 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 1 2004 Subclasses of univalent functions subordinate to convex functions. Zbl 0878.30018 Kim, Yong Chan; Jung, Il Bong 1 1997 Operators that admit a moment sequence. Zbl 1079.47023 Foias, Ciprian; Jung, Il Bong; Ko, Eungil; Pearcy, Carl 1 2005 Hamburger-type weighted shifts: jumping flatness and Aluthge transforms. Zbl 1520.47067 Exner, George R.; Jin, Joo Young; Jung, Il Bong; Lee, Ji Eun 1 2021 Dual subspaces of operators. Zbl 1192.46052 Chevreau, B.; Jung, I. B.; Ko, E.; Pearcy, C. 1 2010 Every operator almost commutes with a compact operator. Zbl 1152.47007 Jong, Il Bong; Ko, Eungil; Pearcy, Carl 1 2007 Separating classes of composition operators via subnormal condition. Zbl 1131.47020 Jung, Il Bong; Lee, Mi Ryeong; Park, Sang Soo 1 2007 Sub-\(n\)-normal operators. Zbl 1112.47015 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 1 2006 Conditionally positive definite unilateral weighted shifts. Zbl 07692869 Jabłoński, Zenon Jan; Jung, Il Bong; Lee, Eun Young; Stochel, Jan 1 2023 Rank-one perturbation of weighted shifts on a directed tree: partial normality and weak hyponormality. Zbl 06927821 Exner, George R.; Jung, Il Bong; Lee, Eun Young; Seo, Minjung 1 2018 Partially normal composition operators relevant to weighted directed trees. Zbl 06684645 Exner, George R.; Jung, Il Bong; Lee, Eun Young; Lee, Mi Ryeong 1 2017 Weighted shifts on directed trees with one branching vertex: \(n\)-contractivity and hyponormality. Zbl 07445040 Exner, George R.; Jung, Il Bong; Lee, Mi Ryeong 1 2021 Almost invariant half-spaces for operators on Hilbert space. Zbl 06825782 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 1 2018 Generalizations of the relation of quasisimilarity for operators. Zbl 1477.47018 Bercovici, H.; Jung, I. B.; Ko, E.; Pearcy, C. 1 2019 Criteria for algebraic operators to be unitary. Zbl 07706673 Jabłoński, Zenon Jan; Stochel, Jan; Jung, Il Bong 2 2023 Conditionally positive definite unilateral weighted shifts. Zbl 07692869 Jabłoński, Zenon Jan; Jung, Il Bong; Lee, Eun Young; Stochel, Jan 1 2023 Conditional positive definiteness in operator theory. Zbl 1503.47027 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 5 2022 On the structure of conditionally positive definite algebraic operators. Zbl 1500.47035 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 2 2022 Taylor spectrum approach to Brownian-type operators with quasinormal entry. Zbl 1514.47042 Chavan, Sameer; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 8 2021 Hamburger-type weighted shifts: jumping flatness and Aluthge transforms. Zbl 1520.47067 Exner, George R.; Jin, Joo Young; Jung, Il Bong; Lee, Ji Eun 1 2021 Weighted shifts on directed trees with one branching vertex: \(n\)-contractivity and hyponormality. Zbl 07445040 Exner, George R.; Jung, Il Bong; Lee, Mi Ryeong 1 2021 \(m\)-isometric operators and their local properties. Zbl 1442.47016 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 9 2020 A subnormal completion problem for weighted shifts on directed trees. II. Zbl 1443.47025 Exner, George R.; Jung, Il Bong; Stochel, Jan; Yun, Hye Yeong 3 2020 Hyperinvariant subspaces for some \(2 \times 2\) operator matrices. II. Zbl 1435.47006 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 2 2019 Generalizations of the relation of quasisimilarity for operators. Zbl 1477.47018 Bercovici, H.; Jung, I. B.; Ko, E.; Pearcy, C. 1 2019 Unbounded weighted composition operators in \(L^2\)-spaces. Zbl 1447.47005 Budzyński, Piotr; Jabłoński, Zenon; Jung, Il Bong; Stochel, Jan 28 2018 A subnormal completion problem for weighted shifts on directed trees. Zbl 1443.47024 Exner, George R.; Jung, Il Bong; Stochel, Jan; Yun, Hye Yeong 5 2018 Hyperinvariant subspaces for some \(2\times 2\) operator matrices. Zbl 1435.47005 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 4 2018 Weak Hamburger-type weighted shifts and their examples. Zbl 1481.47045 Exner, George R.; Jin, Joo Young; Jung, Il Bong; Lee, Ji Eun 3 2018 Rank-one perturbation of weighted shifts on a directed tree: partial normality and weak hyponormality. Zbl 06927821 Exner, George R.; Jung, Il Bong; Lee, Eun Young; Seo, Minjung 1 2018 Almost invariant half-spaces for operators on Hilbert space. Zbl 06825782 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 1 2018 Subnormality of unbounded composition operators over one-circuit directed graphs: exotic examples. Zbl 1373.47022 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 15 2017 On normal products of selfadjoint operators. Zbl 1489.47041 Jung, Il Bong; Mortad, Mohammed Hichem; Stochel, Jan 5 2017 On weighted adjacency operators associated to directed graphs. Zbl 1483.47038 Exner, George R.; Jung, Il Bong; Lee, Eun Young; Seo, Minjung 3 2017 Semi-cubic hyponormality of weighted shifts with Stampfli recursive tail. Zbl 06805234 Baek, Seunghwan; Exner, George R.; Jung, Il Bong; Li, Chunji 2 2017 Partially normal composition operators relevant to weighted directed trees. Zbl 06684645 Exner, George R.; Jung, Il Bong; Lee, Eun Young; Lee, Mi Ryeong 1 2017 A subnormal weighted shift on a directed tree whose \(n\)th power has trivial domain. Zbl 1435.47033 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 9 2016 On semi-cubically hyponormal weighted shifts with first two equal weights. Zbl 1370.47035 Baek, Seunghwan; Jung, Il Bong; Exner, George R.; Li, Chunji 6 2016 Unbounded subnormal composition operators in \(L^2\)-spaces. Zbl 1321.47056 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 14 2015 Weighted shifts induced by Hamburger moment sequences. Zbl 1314.44006 Exner, George R.; Jin, Joo Young; Jung, Il Bong; Lee, Mi Ryeong 5 2015 Unbounded quasinormal operators revisited. Zbl 1321.47050 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 19 2014 A hyponormal weighted shift on a directed tree whose square has trivial domain. Zbl 1301.47043 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 16 2014 On unbounded composition operators in \(L^2\)-spaces. Zbl 1298.47034 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 16 2014 A multiplicative property characterizes quasinormal composition operators in \(L^2\)-spaces. Zbl 1306.47034 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 3 2014 Backward extensions of recursively generated weighted shifts and quadratic hyponormality. Zbl 1307.47017 Exner, George R.; Jung, Il Bong; Lee, Mi Ryeong; Park, Sun Hyun 2 2014 Rank-one perturbations of normal operators and hyponormality. Zbl 1331.47035 Jung, Il Bong; Lee, Eun Young 2 2014 Unbounded subnormal weighted shifts on directed trees. II. Zbl 1304.47043 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 12 2013 Normal extensions escape from the class of weighted shifts on directed trees. Zbl 1296.47029 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 8 2013 Operators with absolute continuity properties: an application to quasinormality. Zbl 1283.47025 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 6 2013 Quadratically hyponormal weighted shifts with recursive tail. Zbl 1306.47020 Exner, George R.; Jung, Il Bong; Lee, Mi Ryeong; Park, Sun Hyun 4 2013 Weighted shifts on directed trees. Zbl 1248.47033 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 53 2012 A non-hyponormal operator generating Stieltjes moment sequences. Zbl 1258.47026 Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 33 2012 Unbounded subnormal weighted shifts on directed trees. Zbl 1304.47042 Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan 15 2012 On semi-weakly \(n\)-hyponormal weighted shifts. Zbl 1282.47026 Do, Younghae; Exner, George; Jung, Il Bong; Li, Chunji 6 2012 Spectral decomposability of rank-one perturbations of normal operators. Zbl 1203.47012 Foias, C.; Jung, I. B.; Ko, E.; Pearcy, C. 9 2011 Hyperexpansive completion problem via alternating sequences; an application to subnormality. Zbl 1222.47028 Jabłoński, Zenon J.; Jung, Il Bong; Kwak, Jung Ah; Stochel, Jan 8 2011 An algorithm for quartically hyponormal weighted shifts. Zbl 1257.47023 Baek, Seunghwan; Jung, Il Bong; Moon, Gyung Young 2 2011 Gaps of operators via rank-one perturbations. Zbl 1208.47022 Exner, George R.; Jung, Il Bong; Lee, Eun Young; Lee, Mi Ryeong 2 2011 Dual subspaces of operators. Zbl 1192.46052 Chevreau, B.; Jung, I. B.; Ko, E.; Pearcy, C. 1 2010 On the iterated Duggal transforms. Zbl 1207.47018 Cho, Muneo; Jung, Il Bong; Lee, Woo Young 7 2009 Normality via local spectral radii. Zbl 1199.47096 Cichoń, Dariusz; Jung Il Bong; Stochel, Jan 6 2009 Block matrix operators and weak hyponormalities. Zbl 1197.47036 Exner, George; Jung, Il Bong; Lee, Mi Ryeong 5 2009 Quadratically hyponormal recursively generated weighted shifts. Zbl 1175.47022 Dong, Yanwu; Exner, George; Jung, Il Bong; Li, Chunji 5 2009 Composition operators with weak hyponormality. Zbl 1129.47023 Burnap, Charles; Jung, Il Bong 14 2008 On rank-one perturbations of normal operators. II. Zbl 1166.47013 Foias, C.; Jung, I. B.; Ko, E.; Pearcy, C. 12 2008 On \(n\)-contractive and \(n\)-hypercontractive operators. II. Zbl 1154.47016 Exner, George R.; Jung, Il Bong; Park, Sang Soo 11 2008 Some quadratically hyponormal weighted shifts. Zbl 1153.47023 Exner, George; Jung, Il Bong; Park, Dongwan 10 2008 Subnormal operators whose adjoints have rich point spectrum. Zbl 1216.47032 Jung, Il Bong; Stochel, Jan 9 2008 On rank-one perturbations of normal operators. Zbl 1134.47004 Foias, C.; Jung, I. B.; Ko, E.; Pearcy, C. 15 2007 Complex moment matrices via Halmos-Bram and Embry conditions. Zbl 1131.44006 Li, Chunji; Jung, Il Bong; Park, Sang Soo 2 2007 A note on the spectral mapping theorem. Zbl 1153.47003 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 2 2007 Hyperinvariant subspaces for some subnormal operators. Zbl 1115.47003 Foias, C.; Jung, I. B.; Ko, E.; Pearcy, C. 2 2007 Every operator almost commutes with a compact operator. Zbl 1152.47007 Jong, Il Bong; Ko, Eungil; Pearcy, Carl 1 2007 Separating classes of composition operators via subnormal condition. Zbl 1131.47020 Jung, Il Bong; Lee, Mi Ryeong; Park, Sang Soo 1 2007 On \(k\)-hyperexpansive operators. Zbl 1102.47012 Exner, George; Jung, Il Bong; Li, Chunji 11 2006 Backward extensions of hyperexpansive operators. Zbl 1100.47018 Jabłoński, Zenon J.; Jung, Il Bong; Stochel, Jan 8 2006 Weakly \(n\)-hyponormal weighted shifts and their examples. Zbl 1104.47021 Exner, George; Jung, Il Bong; Park, Sang Soo 6 2006 Sub-\(n\)-normal operators. Zbl 1112.47015 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 1 2006 Separating partial normality classes with composition operators. Zbl 1114.47027 Burnap, Charles; Jung, Il Bong; Lambert, Alan 27 2005 On Aluthge transforms of \(p\)-hyponormal operators. Zbl 1155.47304 Chō, Muneo; Jung, Il Bong; Lee, Woo Young 19 2005 On quasinilpotent operators. III. Zbl 1106.47008 Foiaş, Ciprian; Jung, Il Bong; Ko, Eungil; Pearcy, Carl 11 2005 Some nonhypertransitive operators. Zbl 1105.47009 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 8 2005 Gaps of operators. Zbl 1077.47024 Jung, Il Bong; Lim, Pil Sang; Park, Sang Soo 5 2005 Gaps of operators. II. Zbl 1082.47016 Jung, Il Bong; Lee, Mi Ryeong; Lim, Pil Sang 5 2005 Weak* continuous characters on dual algebras. Zbl 1079.47059 Chevreau, Bernard; Jung, Il Bong; Ko, Eungil; Pearcy, Carl 2 2005 Operators that admit a moment sequence. Zbl 1079.47023 Foias, Ciprian; Jung, Il Bong; Ko, Eungil; Pearcy, Carl 1 2005 On quasinilpotent operators. II. Zbl 1096.47008 Foiaş, Ciprian; Jung, Il Bong; Ko, Eungil; Pearcy, Carl 7 2004 Backward extensions of subnormal operators. Zbl 1072.47019 Jung, Il Bong; Lambert, Alan; Stochel, Jan 2 2004 Square roots of (BCP)-operators. Zbl 1067.47006 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 1 2004 Complete contractivity of maps associated with the Aluthge and Duggal transforms. Zbl 1066.47037 Foiaş, Ciprian; Jung, Il Bong; Ko, Eungil; Pearcy, Carl 31 2003 The iterated Aluthge transform of an operator. Zbl 1030.47021 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 27 2003 On quasinilpotent operators. Zbl 1060.47008 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 7 2003 A characterization of \(k\)-hyponormality via weak subnormality. Zbl 1036.47011 Curto, Raúl E.; Jung, Il Bong; Park, Sang Soo 5 2003 Embry truncated complex moment problem. Zbl 1048.44001 Jung, Il Bong; Ko, Eungil; Li, Chunji; Park, Sang Soo 4 2003 Spectral properties of some operator matrices. Zbl 1059.47022 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 2 2003 Criteria for positively quadratically hyponormal weighted shifts. Zbl 1011.47017 Bae, Ju Youn; Jung, Il Bong; Exner, George R. 11 2002 Extensions and extremality of recursively generated weighted shifts. Zbl 1003.47025 Curto, Raúl E.; Jung, Il Bong; Lee, Woo Young 7 2002 Moment sequences and backward extensions of subnormal weighted shifts. Zbl 1011.47016 Hoover, Thomas; Jung, Il Bong; Lambert, Alan 4 2002 Spectral pictures of Aluthge transforms of operators. Zbl 1130.47300 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 34 2001 A formula for \(k\)-hyponormality of backstep extensions of subnormal weighted shifts. Zbl 0970.47019 Jung, Il Bong; Li, Chunji 14 2001 Joint spectra of \(n\)-tuples of generalized Aluthge transformations. Zbl 1031.47006 Chō, M.; Jeon, I. H.; Jung, I. B.; Lee, J. I.; Tanahashi, K. 5 2001 Aluthge transforms of operators. Zbl 0996.47008 Jung, Il Bong; Ko, Eungil; Pearcy, Carl 103 2000 Quadratically hyponormal weighted shifts with two equal weights. Zbl 0961.47017 Curto, Raúl E.; Jung, Il Bong 16 2000 Quadratically hyponormal weighted shifts and their examples. Zbl 0962.47014 Jung, Il Bong; Park, Sang Soo 16 2000 Cubically hyponormal weighted shifts and their examples. Zbl 0959.47015 Jung, Il Bong; Park, Sang Soo 13 2000 Backward extensions of hyponormal weighted shifts. Zbl 0974.47024 Jung, Il Bong; Li, Chunji 5 2000 Some multiplicities for contractions with Hilbert-Schmidt defect. Zbl 0913.47010 Exner, George R.; Jung, Il Bong 2 1998 Subclasses of univalent functions subordinate to convex functions. Zbl 0878.30018 Kim, Yong Chan; Jung, Il Bong 1 1997 \(C_{\cdot 0}\) contractions: Dual operator algebras, Jordan models and multiplicity. Zbl 0837.47038 Exner, George R.; Jo, Young Soo; Jung, Il Bong 1 1995 Compressions of contractions in the classes \(\mathbb{A}_ n\). Zbl 0829.47035 Exner, George R.; Jung, Il Bong 1 1994 The Hardy space of analytic functions associated with certain one-parameter families of integral operators. Zbl 0774.30008 Jung, Il Bong; Kim, Yong Chan; Srivastava, H. M. 116 1993 all cited Publications top 5 cited Publications all top 5 Cited by 421 Authors 60 Jung, Il Bong 38 Ko, Eungil 36 Stochel, Jan 26 Jabłoński, Zenon Jan 23 Exner, George R. 22 Srivastava, Hari Mohan 18 Aouf, Mohamed Kamal 17 Li, Chunji 16 Chavan, Sameer Laxman 16 Curto, Raúl Enrique 16 Yoon, Jasang 15 Budzyński, Piotr 14 Lee, Jieun 14 Lee, Mi Ryeong 10 Benhida, Chafiq 10 Jung, Sungeun 10 Lee, Mee-Jung 10 Lee, Sanghoon 10 Lee, Woo Young 10 Pearcy, Carl Mark Jr. 9 Mortad, Mohammed Hichem 9 Prajapat, Jugal Kishore 8 Chabbabi, Fadil 8 Mbekhta, Mostafa 8 Noor, Khalida Inayat 8 Pietrzycki, Paweł 7 Chō, Muneo 7 Kim, Jaewoong 7 Lee, Eun-Young 7 Raina, Ravinder Krishna 7 Seoudy, Tamer Mohamed 6 Darus, Maslina 6 Dymek, Piotr 6 El-Ashwah, Rabha Mohamed 6 Płaneta, Artur 6 Sharma, Poonam 6 Trivedi, Shailesh 6 Yamazaki, Takeaki 5 Attiya, Adel A. 5 Baek, Seunghwan 5 Bulboacă, Teodor 5 Cho, Nak Eun 5 Dehimi, Souheyb 5 Foiaș, Ciprian 5 Ghanim, Firas 4 Anand, Akash 4 Gaboury, Sébastien 4 Gallardo-Gutiérrez, Eva Antonia 4 Gu, Caixing 4 Kim, Yoenha 4 Kim, Yong Chan 4 Martínez-Avendaño, Rubén A. 4 Mostafa, Adela Osman 4 Park, Sun Hyun 4 Ptak, Marek 4 Rashid, Mohammad Hussein Mohammad 4 Stochel, Jerzy Bartłomiej 3 An, Il Ju 3 Antezana, Jorge 3 Bachir, Ahmed 3 Bulut, Serap 3 Dong, Yanwu 3 Feki, Kais 3 Gupta, Rajeev Kumar drrkbgupta yahoo. co. in 3 Jabbarzadeh, Mohammd Reza 3 Javier González-Doña, F. 3 Jin, Joo Young 3 Katsikis, Vasilios N. 3 Kośmider, Jakub 3 Liu, Jinlin 3 Murugusundaramoorthy, Gangadharan 3 Pappas, Dimitrios 3 Park, Sangsoo 3 Pujals, Enrique Ramiro 3 Reddy, Pinninti Thirupathi 3 Seo, Minjung 3 Stojanoff, Demetrio 3 Tang, Huo 3 Wang, Zhigang 3 Zerouali, El Hassan 2 Abd-Eltawab, Ahmed M. 2 Al-Shaqsi, Khalifa Zayid 2 Altwaijry, Najla A. 2 Ando, Tsuyoshi 2 Azimi, Mohammad Reza 2 Bag, Santanu 2 Bhunia, Pintu 2 Botelho, Fernanda 2 Braha, Naim Latif 2 Burnap, Charles 2 Çağlar, Murat 2 Cassier, Gilles 2 Çetinkaya, Asena 2 Chegeni, Morteza Sohrabi 2 Chevreau, Bernard 2 Deng, Guantie 2 Djordjević, Slaviša V. 2 Dragomir, Sever Silvestru 2 El Azhar, Hamza 2 Eskandari, Rasoul ...and 321 more Authors all top 5 Cited in 130 Serials 60 Journal of Mathematical Analysis and Applications 24 Integral Equations and Operator Theory 22 Linear Algebra and its Applications 16 Proceedings of the American Mathematical Society 14 Linear and Multilinear Algebra 14 Journal of Functional Analysis 12 Journal of Inequalities and Applications 12 Operators and Matrices 11 Integral Transforms and Special Functions 11 Mediterranean Journal of Mathematics 10 Filomat 9 Advances in Mathematics 9 Complex Analysis and Operator Theory 8 Computers & Mathematics with Applications 8 Mathematische Nachrichten 7 Studia Mathematica 7 Kyungpook Mathematical Journal 7 Banach Journal of Mathematical Analysis 6 Positivity 6 Mathematical Inequalities & Applications 6 Journal of Applied Mathematics & Informatics 5 Applied Mathematics and Computation 5 Abstract and Applied Analysis 5 Communications of the Korean Mathematical Society 4 Results in Mathematics 4 Transactions of the American Mathematical Society 4 Comptes Rendus. Mathématique. Académie des Sciences, Paris 4 Annals of Functional Analysis 4 Journal of Classical Analysis 3 Rocky Mountain Journal of Mathematics 3 Acta Scientiarum Mathematicarum 3 Annali di Matematica Pura ed Applicata. Serie Quarta 3 International Journal of Mathematics and Mathematical Sciences 3 Osaka Journal of Mathematics 3 Rendiconti del Circolo Matemàtico di Palermo. Serie II 3 Bulletin of the Korean Mathematical Society 3 Honam Mathematical Journal 3 Asian-European Journal of Mathematics 3 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 3 ISRN Mathematical Analysis 3 Arabian Journal of Mathematics 3 Electronic Journal of Mathematical Analysis and Applications EJMAA 3 Journal of Linear and Topological Algebra 3 Advances in Operator Theory 2 Analysis Mathematica 2 Bulletin of the Australian Mathematical Society 2 Bulletin of the London Mathematical Society 2 Canadian Mathematical Bulletin 2 Proceedings of the Japan Academy. Series A 2 Bulletin of the Iranian Mathematical Society 2 Mathematical and Computer Modelling 2 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 2 Turkish Journal of Mathematics 2 Bulletin des Sciences Mathématiques 2 Opuscula Mathematica 2 Acta Mathematica Sinica. English Series 2 Lobachevskii Journal of Mathematics 2 Nonlinear Functional Analysis and Applications 2 Journal of the Australian Mathematical Society 2 Boletim da Sociedade Paranaense de Matemática. Terceira Série 2 Concrete Operators 2 Korean Journal of Mathematics 2 AIMS Mathematics 1 Indian Journal of Pure & Applied Mathematics 1 Israel Journal of Mathematics 1 Journal of the Franklin Institute 1 Russian Mathematical Surveys 1 Annales Universitatis Mariae Curie-Skłodowska. Sectio A. Mathematica 1 Archiv der Mathematik 1 Canadian Journal of Mathematics 1 Dissertationes Mathematicae 1 Indiana University Mathematics Journal 1 Journal of Computational and Applied Mathematics 1 Journal of the London Mathematical Society. Second Series 1 Journal of the Mathematical Society of Japan 1 Le Matematiche 1 Mathematische Zeitschrift 1 Memoirs of the American Mathematical Society 1 Proceedings of the London Mathematical Society. Third Series 1 Publications de l’Institut Mathématique. Nouvelle Série 1 Quaestiones Mathematicae 1 Rendiconti dell’Istituto di Matematica dell’Università di Trieste 1 Tokyo Journal of Mathematics 1 Rendiconti di Matematica e delle sue Applicazioni. Serie VII 1 Chinese Annals of Mathematics. Series B 1 Acta Mathematica Hungarica 1 Revista Matemática Iberoamericana 1 International Journal of Mathematics 1 Aequationes Mathematicae 1 Journal de Mathématiques Pures et Appliquées. Neuvième Série 1 Bulletin of the Polish Academy of Sciences, Mathematics 1 New Zealand Journal of Mathematics 1 St. Petersburg Mathematical Journal 1 Annales Mathématiques Blaise Pascal 1 Journal of the Egyptian Mathematical Society 1 Georgian Mathematical Journal 1 The New York Journal of Mathematics 1 Buletinul Academiei de Științe a Republicii Moldova. Matematica 1 Journal of Applied Analysis 1 Mathematica Moravica ...and 30 more Serials all top 5 Cited in 32 Fields 339 Operator theory (47-XX) 122 Functions of a complex variable (30-XX) 43 Functional analysis (46-XX) 31 Integral transforms, operational calculus (44-XX) 24 Combinatorics (05-XX) 20 Linear and multilinear algebra; matrix theory (15-XX) 13 Number theory (11-XX) 12 Special functions (33-XX) 7 Real functions (26-XX) 6 Integral equations (45-XX) 4 Ordinary differential equations (34-XX) 4 Abstract harmonic analysis (43-XX) 3 Dynamical systems and ergodic theory (37-XX) 2 History and biography (01-XX) 2 Potential theory (31-XX) 2 Several complex variables and analytic spaces (32-XX) 2 Difference and functional equations (39-XX) 2 Systems theory; control (93-XX) 1 General and overarching topics; collections (00-XX) 1 Field theory and polynomials (12-XX) 1 Associative rings and algebras (16-XX) 1 Nonassociative rings and algebras (17-XX) 1 Topological groups, Lie groups (22-XX) 1 Measure and integration (28-XX) 1 Partial differential equations (35-XX) 1 Differential geometry (53-XX) 1 Algebraic topology (55-XX) 1 Probability theory and stochastic processes (60-XX) 1 Numerical analysis (65-XX) 1 Computer science (68-XX) 1 Quantum theory (81-XX) 1 Biology and other natural sciences (92-XX) Citations by Year