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Hwang, In Sung

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Author ID: hwang.in-sung Recent zbMATH articles by "Hwang, In Sung"
Published as: Hwang, I. S.; Hwang, In Sung
Documents Indexed: 42 Publications since 1998, including 1 Book

Publications by Year

Citations contained in zbMATH

29 Publications have been cited 252 times in 159 Documents Cited by Year
Quartic functional equations. Zbl 1072.39024
Lee, Sang Han; Im, Sung Mo; Hwang, In Sung
66
2005
The boundedness below of \(2\times 2\) upper triangular operator matrices. Zbl 0986.47004
Hwang, In Sung; Lee, Woo Young
33
2001
Hyponormality and subnormality of block Toeplitz operators. Zbl 1248.47029
Curto, Raúl E.; Hwang, In Sung; Lee, Woo Young
16
2012
Hyponormality of trigonometric Toeplitz operators. Zbl 1011.47023
Hwang, In Sung; Lee, Woo Young
14
2002
Hyponormality of Toeplitz operators with polynomial symbols. Zbl 0927.47018
Hwang, In Sung; Kim, In Hyoun; Lee, Woo Young
14
1999
Hyponormal Toeplitz operators on the Bergman space. Zbl 1085.47027
Hwang, In Sung
11
2005
The spectrum is continuous on the set of \(p\)-hyponormal operators. Zbl 0963.47002
Hwang, In Sung; Lee, Woo Young
11
2000
Which subnormal Toeplitz operators are either normal or analytic? Zbl 1263.47033
Curto, Raúl E.; Hwang, In Sung; Lee, Woo Young
10
2012
Hyponormal Toeplitz operators with rational symbols. Zbl 1122.47023
Hwang, In Sung; Lee, Woo Young
8
2006
Hyponormality of Toeplitz operators with rational symbols. Zbl 1129.47025
Hwang, In Sung; Lee, Woo Young
8
2006
Subnormal and quasinormal Toeplitz operators with matrix-valued rational symbols. Zbl 1318.47031
Curto, Raúl E.; Hwang, In Sung; Kang, Dong-O; Lee, Woo Young
7
2014
Hyponormality of Toeplitz operators with polynomial symbols: An extremal case. Zbl 1016.47024
Hwang, In Sung; Kim, In Hyoun; Lee, Woo Young
7
2001
Hyponormal Toeplitz operators on the weighted Bergman spaces. Zbl 1269.47021
Hwang, In Sung; Lee, Jongrak
6
2012
Block Toeplitz operators with rational symbols. Zbl 1135.47024
Hwang, In Sung; Lee, Woo Young
5
2008
A gap between hyponormality and subnormality for block Toeplitz operators. Zbl 1221.47052
Hwang, In Sung; Kang, Dong-O; Lee, Woo Young
4
2011
Joint hyponormality of rational Toeplitz pairs. Zbl 1207.47019
Hwang, In Sung; Lee, Woo Young
4
2009
Hyponormality of Toeplitz operators on the Bergman space. Zbl 1163.47017
Hwang, In Sung
4
2008
On the continuity of spectra of Toeplitz operators. Zbl 0910.47021
Hwang, In Sung; Lee, Woo Young
4
1998
Hyponormal Toeplitz operators with polynomial symbols on weighted Bergman spaces. Zbl 1447.47032
Hwang, In Sung; Lee, Jongrak; Park, Se Won
3
2014
Block Toeplitz operators with rational symbols. II. Zbl 1351.47026
Hwang, In Sung; Lee, Woo Young
3
2008
Normal singular Cauchy integral operators with operator-valued symbols. Zbl 1356.47053
Gu, Caixing; Hwang, In Sung; Kang, Dong-O; Lee, Woo Young
2
2017
Hyponormal Toeplitz operators with matrix-valued circulant symbols. Zbl 1300.47038
Hwang, In Sung; Kang, Dong-O.; Lee, Woo Young
2
2013
Hyponormal Toeplitz operators on the Bergman space. II. Zbl 1137.47023
Hwang, In Sung; Lee, Jongrak
2
2007
Hyponormality of Toeplitz operators with polynomial and symmetric-type symbols. Zbl 1087.47027
Hwang, In Sung; Lee, Woo Young
2
2004
Weak subnormality of operators. Zbl 1022.47013
Curto, Raúl E.; Hwang, In Sung; Lee, Woo Young
2
2002
Hyponormality of bounded-type Toeplitz operators. Zbl 1318.47032
Curto, Raúl E.; Hwang, In Sung; Lee, Woo Young
1
2014
Erratum to: Joint hyponormality of rational Toeplitz pairs. Zbl 1213.47023
Hwang, In Sung; Lee, Woo Young
1
2011
Hyponormality of Toeplitz operators with generalized circulant symbols. Zbl 1154.47021
Hwang, In Sung; Kim, In Hyoun
1
2009
On spectral properties of log-hyponormal operators. Zbl 0968.47514
Chō, Muneo; Hwang, In Sung; Lee, Jun Ik
1
2000
Normal singular Cauchy integral operators with operator-valued symbols. Zbl 1356.47053
Gu, Caixing; Hwang, In Sung; Kang, Dong-O; Lee, Woo Young
2
2017
Subnormal and quasinormal Toeplitz operators with matrix-valued rational symbols. Zbl 1318.47031
Curto, Raúl E.; Hwang, In Sung; Kang, Dong-O; Lee, Woo Young
7
2014
Hyponormal Toeplitz operators with polynomial symbols on weighted Bergman spaces. Zbl 1447.47032
Hwang, In Sung; Lee, Jongrak; Park, Se Won
3
2014
Hyponormality of bounded-type Toeplitz operators. Zbl 1318.47032
Curto, Raúl E.; Hwang, In Sung; Lee, Woo Young
1
2014
Hyponormal Toeplitz operators with matrix-valued circulant symbols. Zbl 1300.47038
Hwang, In Sung; Kang, Dong-O.; Lee, Woo Young
2
2013
Hyponormality and subnormality of block Toeplitz operators. Zbl 1248.47029
Curto, Raúl E.; Hwang, In Sung; Lee, Woo Young
16
2012
Which subnormal Toeplitz operators are either normal or analytic? Zbl 1263.47033
Curto, Raúl E.; Hwang, In Sung; Lee, Woo Young
10
2012
Hyponormal Toeplitz operators on the weighted Bergman spaces. Zbl 1269.47021
Hwang, In Sung; Lee, Jongrak
6
2012
A gap between hyponormality and subnormality for block Toeplitz operators. Zbl 1221.47052
Hwang, In Sung; Kang, Dong-O; Lee, Woo Young
4
2011
Erratum to: Joint hyponormality of rational Toeplitz pairs. Zbl 1213.47023
Hwang, In Sung; Lee, Woo Young
1
2011
Joint hyponormality of rational Toeplitz pairs. Zbl 1207.47019
Hwang, In Sung; Lee, Woo Young
4
2009
Hyponormality of Toeplitz operators with generalized circulant symbols. Zbl 1154.47021
Hwang, In Sung; Kim, In Hyoun
1
2009
Block Toeplitz operators with rational symbols. Zbl 1135.47024
Hwang, In Sung; Lee, Woo Young
5
2008
Hyponormality of Toeplitz operators on the Bergman space. Zbl 1163.47017
Hwang, In Sung
4
2008
Block Toeplitz operators with rational symbols. II. Zbl 1351.47026
Hwang, In Sung; Lee, Woo Young
3
2008
Hyponormal Toeplitz operators on the Bergman space. II. Zbl 1137.47023
Hwang, In Sung; Lee, Jongrak
2
2007
Hyponormal Toeplitz operators with rational symbols. Zbl 1122.47023
Hwang, In Sung; Lee, Woo Young
8
2006
Hyponormality of Toeplitz operators with rational symbols. Zbl 1129.47025
Hwang, In Sung; Lee, Woo Young
8
2006
Quartic functional equations. Zbl 1072.39024
Lee, Sang Han; Im, Sung Mo; Hwang, In Sung
66
2005
Hyponormal Toeplitz operators on the Bergman space. Zbl 1085.47027
Hwang, In Sung
11
2005
Hyponormality of Toeplitz operators with polynomial and symmetric-type symbols. Zbl 1087.47027
Hwang, In Sung; Lee, Woo Young
2
2004
Hyponormality of trigonometric Toeplitz operators. Zbl 1011.47023
Hwang, In Sung; Lee, Woo Young
14
2002
Weak subnormality of operators. Zbl 1022.47013
Curto, Raúl E.; Hwang, In Sung; Lee, Woo Young
2
2002
The boundedness below of \(2\times 2\) upper triangular operator matrices. Zbl 0986.47004
Hwang, In Sung; Lee, Woo Young
33
2001
Hyponormality of Toeplitz operators with polynomial symbols: An extremal case. Zbl 1016.47024
Hwang, In Sung; Kim, In Hyoun; Lee, Woo Young
7
2001
The spectrum is continuous on the set of \(p\)-hyponormal operators. Zbl 0963.47002
Hwang, In Sung; Lee, Woo Young
11
2000
On spectral properties of log-hyponormal operators. Zbl 0968.47514
Chō, Muneo; Hwang, In Sung; Lee, Jun Ik
1
2000
Hyponormality of Toeplitz operators with polynomial symbols. Zbl 0927.47018
Hwang, In Sung; Kim, In Hyoun; Lee, Woo Young
14
1999
On the continuity of spectra of Toeplitz operators. Zbl 0910.47021
Hwang, In Sung; Lee, Woo Young
4
1998
all top 5

Cited by 158 Authors

22 Hwang, In Sung
21 Park, Choonkil
19 Eshaghi Gordji, Madjid
19 Lee, Woo Young
13 Chen, Alatancang
9 Cho, Yeol Je
9 Huang, Junjie
9 Khodaei, Hamid
8 Curto, Raúl Enrique
8 Lee, Jung-Rye
7 Kang, Dong-Oh
7 Ko, Eungil
7 Zhang, Shifang
6 Hai, Guojun
6 Lee, Jun Ik
6 Wu, Xiufeng
6 Zhong, Huaijie
5 Alizadeh, Zahra
5 Kim, An-Hyun
5 Saadati, Reza
4 Du, Hongke
4 Gu, Caixing
4 Jeon, In Ho
4 Kim, Hark-Mahn
4 Kim, In Hyoun
4 Lee, Jieun
4 Rassias, Themistocles Michael
4 Shin, Dong-Yun
3 Azadi-Kenary, Hassan
3 Bavand Savadkouhi, Meysam
3 Bodaghi, Abasalt
3 Duggal, Bhagwati Prashad
3 Ghaemi, Mohammad Bagher
3 Li, Yuan
3 Lu, Yufeng
3 Majani, Hamid
3 Najati, Abbas
3 Yang, Xiuzhong
2 Cao, Xiaohong
2 Cui, Puyu
2 Cvetković-Ilić, Dragana S.
2 Ghazanfari, Amir Ghasem
2 Hong, Kicheon
2 Jiang, Xiaoyu
2 Lee, Young-Su
2 Meng, Bin
2 Nakazi, Takahiko
2 Pang, Chin-Tzong
2 Pinelas, Sandra
2 Qi, Yaru
2 Shi, Yanyue
2 Sun, Xiuhong
2 Vaezpour, Seyyed Mansour
2 Wang, Zhihua
2 Zhao, Xiaopeng
2 Zolfaghari, Somayyeh
2 Zuo, Fei
1 Alias, Idham Arif
1 Alinejad, Ahmad
1 AlShehri, Adel
1 An, Il Ju
1 Askari, Gholamreza
1 Azadi Kenary, C.
1 Bahraini, Alireza
1 Bai, Qingmei
1 Barraa, Mohamed
1 Benharrat, Mohammed
1 Boumazgour, Mohamed
1 Bounader, Nordine
1 Chaipunya, Parin
1 Chang, Ick-Soon
1 Chang, Lidan
1 Chen, Xiaoling
1 Chung, Jaeyoung
1 Chung, Soon-Yeong
1 Djordjević, Slaviša V.
1 Dou, Yanni
1 Du, Guichun
1 Du, Qungui
1 Ebadian, Ali
1 El-Fassi, Iz-Iddine
1 Fei, Juntao
1 Fleeman, Matthew C.
1 Forti, Gian Luigi
1 Fu, Zunwei
1 Gao, Fugen
1 Garayev, Mübariz Tapdıgoğlu
1 Ghaffari, Ali
1 Ghahramani, Mohammad Hosein
1 Gholami, Reza
1 Gordij, Madjid Eshaghi
1 Govindan, Vediyappan
1 Guo, Maozheng
1 Halouani, Borhen
1 Han, Young Min
1 Hocine, Kouider Miloud
1 Jiang, Qiaofen
1 Jiang, Zhaolin
1 Ju, Yumin
1 Jung, Il Bong
...and 58 more Authors
all top 5

Cited in 54 Serials

25 Journal of Mathematical Analysis and Applications
12 Abstract and Applied Analysis
12 Journal of Inequalities and Applications
10 Linear Algebra and its Applications
8 Advances in Difference Equations
6 Journal of Fixed Point Theory and Applications
5 Linear and Multilinear Algebra
5 Complex Analysis and Operator Theory
4 Integral Equations and Operator Theory
4 Results in Mathematics
4 Fixed Point Theory and Applications
4 Journal of Function Spaces
3 Journal of Functional Analysis
3 Mathematische Nachrichten
3 Acta Mathematica Sinica. English Series
3 Operators and Matrices
3 Annals of Functional Analysis
3 Mathematical Sciences
3 Korean Journal of Mathematics
2 Advances in Mathematics
2 Applied Mathematics Letters
2 Journal of Nonlinear Science and Applications
1 Journal of Mathematical Physics
1 Demonstratio Mathematica
1 Functional Analysis and its Applications
1 Glasgow Mathematical Journal
1 International Journal of Mathematics and Mathematical Sciences
1 Journal of the Korean Mathematical Society
1 Mathematische Annalen
1 Memoirs of the American Mathematical Society
1 Proceedings of the American Mathematical Society
1 Rendiconti del Circolo Matemàtico di Palermo. Serie II
1 Transactions of the American Mathematical Society
1 Bulletin of the Korean Mathematical Society
1 Acta Mathematica Hungarica
1 Acta Applicandae Mathematicae
1 Acta Mathematicae Applicatae Sinica. English Series
1 International Journal of Mathematics
1 Applied Mathematics. Series B (English Edition)
1 Mathematical Problems in Engineering
1 Honam Mathematical Journal
1 Discrete Dynamics in Nature and Society
1 Communications of the Korean Mathematical Society
1 Journal of Intelligent and Fuzzy Systems
1 Journal of Function Spaces and Applications
1 Boletim da Sociedade Paranaense de Matemática. Terceira Série
1 Complex Variables and Elliptic Equations
1 Proyecciones
1 Annali dell’Università di Ferrara. Sezione VII. Scienze Matematiche
1 Banach Journal of Mathematical Analysis
1 Analysis and Mathematical Physics
1 Arabian Journal of Mathematics
1 Journal of Applied Analysis and Computation
1 International Journal of Analysis and Applications

Citations by Year