| On the lower semicontinuity of optimal solution sets BT Kien* Optimization 54 (2), 123-130, 2005 | 74 | 2005 |
| On the solution existence of pseudomonotone variational inequalities BT Kien, JC Yao, ND Yen Journal of Global Optimization 41, 135-145, 2008 | 43 | 2008 |
| Covering properties at positive-order rates of multifunctions and some related topics ND Yen, JC Yao, BT Kien Journal of mathematical analysis and applications 338 (1), 467-478, 2008 | 39 | 2008 |
| Second-order necessary optimality conditions for a class of semilinear elliptic optimal control problems with mixed pointwise constraints BT Kien, VH Nhu SIAM Journal on Control and Optimization 52 (2), 1166-1202, 2014 | 37 | 2014 |
| Second-order KKT optimality conditions for multiobjective optimal control problems BT Kien, NV Tuyen, JC Yao SIAM Journal on Control and Optimization 56 (6), 4069-4097, 2018 | 32 | 2018 |
| Generalized vector variational inequalities with star-pseudomonotone and discontinuous operators BT Kien, NC Wong, JC Yao Nonlinear Analysis: Theory, Methods & Applications 68 (9), 2859-2871, 2008 | 26 | 2008 |
| On the degree theory for general mappings of monotone type BT Kien, MM Wong, NC Wong Journal of mathematical analysis and applications 340 (1), 707-720, 2008 | 26 | 2008 |
| Second-order optimality conditions for a semilinear elliptic optimal control problem with mixed pointwise constraints BT Kien, VH Nhu, NH Son Set-Valued and Variational Analysis 25, 177-210, 2017 | 25 | 2017 |
| Lower semicontinuity of the solution set to a parametric optimal control problem BT Kien, NT Toan, MM Wong, JC Yao SIAM Journal on Control and Optimization 50 (5), 2889-2906, 2012 | 25 | 2012 |
| Necessary conditions for multiobjective optimal control problems with free end-time BT Kien, NC Wong, JC Yao SIAM Journal on Control and Optimization 47 (5), 2251-2274, 2008 | 25 | 2008 |
| The normalized duality mapping and two related characteristic properties of a uniformly convex Banach space BT Kien Acta Math. Vietnam 27 (1), 53-67, 2002 | 24 | 2002 |
| On the solution existence of generalized quasivariational inequalities with discontinuous multifunctions BT Kien, NC Wong, JC Yao Journal of optimization theory and applications 135 (3), 515-530, 2007 | 22 | 2007 |
| Solution existence of variational inequalities with pseudomonotone operators in the sense of Brézis BT Kien, MM Wong, NC Wong, JC Yao Journal of optimization theory and applications 140, 249-263, 2009 | 21 | 2009 |
| Degree theory for generalized variational inequalities and applications BT Kien, MM Wong, NC Wong, JC Yao European journal of operational research 192 (3), 730-736, 2009 | 21 | 2009 |
| Subgradients of value functions in parametric dynamic programming BT Kien, YC Liou, NC Wong, JC Yao European journal of operational research 193 (1), 12-22, 2009 | 19 | 2009 |
| Further results on subgradients of the value function to a parametric optimal control problem NH Chieu, BT Kien, NT Toan Journal of Optimization Theory and Applications 168, 785-801, 2016 | 18 | 2016 |
| Subgradients of the value function to a parametric optimal control problem NT Toan, BT Kien Set-Valued and Variational Analysis 18 (2), 183-203, 2010 | 18 | 2010 |
| Integro-differential equations with bounded operators in Banach spaces VE Fedorov, AD Godova, BT Kien Bulletin of the Karaganda University. Mathematics Series 106 (2), 93-107, 2022 | 14 | 2022 |
| Pontryagin’s principle for optimal control problem governed by 3D Navier–Stokes equations BT Kiên, A Rösch, D Wachsmuth Journal of Optimization Theory and Applications 173, 30-55, 2017 | 13 | 2017 |
| Second-order optimality conditions for boundary control problems with mixed pointwise constraints NH Son, BT Kien, A Rösch SIAM Journal on Optimization 26 (3), 1912-1943, 2016 | 13 | 2016 |
