| 2012 | On class A operators and complex symmetric operators | 정성은 | Doctoral Thesis |
| 2013 | On complex symmetric operator matrices | 고응일; 이지은 | Article |
| 2016 | On complex symmetric Toeplitz operators | 고응일 | Article |
| 2021 | On Extended Commuting Operators | 고응일 | Article |
| 2013 | On Fuglede-Putnam Properties | 조선진 | Master's Thesis |
| 2015 | On Fuglede-Putnam properties | 고응일; 김연하 | Article |
| 2001 | On Hypo-Jordan operators | 고응일 | Article |
| 2004 | On Hyponormal Toeplitz Operators With Trigonometric Polynomial Symbols | 徐智賢 | Master's Thesis |
| 2022 | On Hyponormality of the Sum of Two Composition Operators | 고응일 | Article |
| 2018 | ON infinity-COMPLEX SYMMETRIC OPERATORS | 고응일 | Article |
| 2011 | On local spectral properties of complex symmetric operators | 고응일; 이지은 | Article |
| 2021 | On local spectral properties of operator matrices | 고응일 | Article |
| 2016 | On m-Complex Symmetric Operators | 고응일 | Article |
| 2018 | On m-isometric toeplitz operators | 고응일 | Article |
| 2016 | On operators satisfying the generalized Cauchy-Schwarz inequality | 최한나 | Master's Thesis |
| 2017 | On operators satisfying the generalized Cauchy-Schwarz inequality | 고응일; 김연하 | Article |
| 2020 | ON OPERATORS T COMMUTING WITH CTC WHERE C IS A CONJUGATION | 고응일 | Article |
| 2015 | ON OPERATORS WHICH ARE POWER SIMILAR TO HYPONORMAL OPERATORS | 고응일 | Article |
| 2018 | On operators with similar positive parts | 고응일 | Article |
| 2000 | On p-hyponormal operators | 고응일 | Article |
| 2019 | On Power Similarity of Complex Symmetric Operators | 고응일; 이미정 | Article |
| 2021 | On properties of C-normal operators | 고응일; 이미정 | Article |
| 2023 | On properties of C-normal operators II | 고응일 | Article |
| 2018 | On properties of the operator equation TT* = T plus T* | 고응일; 안일주 | Article |
| 2004 | On quasinilpotent operators, II | 고응일 | Article |
| 2005 | On quasinilpotent operators. III | 고응일 | Article |
| 2021 | ON QUASINORMALITY OF SINGULAR INTEGRAL OPERATORS WITH CAUCHY KERNEL ON L-2 | 고응일 | Article |
| 2015 | On Rank One Perturbations of Complex Symmetric Operators | 고응일; 이지은 | Article |
| 2011 | On rank one perturbations of the unilateral shift | 고응일; 이지은 | Article |
| 2007 | On rank-one perturbations of normal operators | 고응일 | Article |
