| B. B. Upadhyay, I. M. Stancu-Minasian, P. Mishra, and S. Poddar: On relation between bilevel programming problems and variational inequalities on Hadamard manifolds with application to toll optimization problem, Journal of Global Optimization, (2026). doi: 10.1007/s10898-026-01599-5 |
| B. B. Upadhyay, R. K. Pandey, S. Poddar, A. H. Bafrani, M. Morabito, and G. Caristi: Pareto efficiency criteria and duality for robust multiobjective semi-infinite programming problems with equilibrium constraints, Decisions in Economics and Finance, (2026). doi: 10.1007/s10203-026-00565-w |
| B. B. Upadhyay, R. K. Pandey, S. Poddar, and S. Zeng: Fletcher-Reeves-type conjugate direction algorithm for interval-valued multiobjective optimization problems, Annals of Operations Research, (2025). doi: 10.1007/s10479-025-06976-z |
| T. Antczak, B. B. Upadhyay, and R. N. Mohapatra: Optimality conditions and duality results for nondifferentiable vector interval-valued optimization problems with G-invex functions, Rendiconti del Circolo Matematico di Palermo Series 2, (2026, Accepted) |
| B. B. Upadhyay, A. Ghosh, I. M. Stancu-Minasian, and A. M. Rusu-Stancu: Constraint qualifications and optimality criteria for nonsmooth multiobjective mathematical programming problems with equilibrium constraints on Hadamard manifolds, Axioms, 15(1), (2026). doi: 10.3390/axioms15010040 |
| B. B. Upadhyay, S. Poddar, J. C. Yao, and X. Zhao: Proximal point method with Bregman regularization for multiobjective optimization problems on Hadamard manifolds, Journal of Optimization Theory and Applications, 208(2), 1–35 (2025) |
| B. B. Upadhyay, S. Poddar, G. Caristi, and D. Barilla: Inertial proximal point algorithm on Hadamard manifolds: Convergence analysis and finite termination, Annals of Operations Research, (2025). doi: 10.1007/s10479-025-06912-1 |
| B. B. Upadhyay, S. Poddar, and D. Barilla: Constraint qualifications and optimality criteria for robust conic multiobjective semi-infinite programming problems with vanishing constraints on Riemannian manifolds, Annals of Operations Research, (2025). doi: 10.1007/s10479-025-06918-9 |
| B. B. Upadhyay, S. Poddar, and D. Barilla: Robust optimality and duality for multiobjective semi-infinite programming problems with equilibrium constraints under data uncertainty, Decisions in Economics and Finance, (2025). doi: 10.1007/s10203-025-00548-3 |
| R. K. Pandey, B. B. Upadhyay, S. Poddar, and I. M. Stancu-Minasian: Conjugate descent-type algorithm for interval-valued multiobjective optimization problems, Atti della Accademia Peloritana dei Pericolanti, 103(3), 1–25 (2025) |
| B. B. Upadhyay, S. Sain, D. Barilla, and M. Morabito: Minimization principle for nonsmooth vector variational-hemivariational inequalities on Hadamard manifolds, Atti della Accademia Peloritana dei Pericolanti, 103(3), 40–70 (2025) |
| B. B. Upadhyay, P. Mishra, S. Tiwari, S. Treanta, and S. Poddar: Characterizations of locally Lipschitz pseudolinear functions on Hadamard manifolds, RAIRO-Operations Research, (2025) |
| C. F. Pîrje, S. Treanţă, Y. Guo, B. B. Upadhyay, and F. Shi: On dual problems of second order for (η, ξ)-bonvex interval-valued control problems, Control and Cybernetics, 39(3), 1–24 (2025) |
| B. B. Upadhyay, S. Poddar, J. C. Yao, O. P. Ferreira, and X. Zhao: An inexact proximal point method with quasi-distance for quasiconvex multiobjective optimization problems on Riemannian manifolds, Numerical Algorithms, 99(4), 1–35 (2025). doi: 10.1007/s11075-025-02177-8 |
| B. B. Upadhyay, and G. Arnav: Duality for nonsmooth multiobjective semi-infinite programming problems with equilibrium constraints on Hadamard manifolds, FILOMAT, 39(2), 1–30 (2025) |
| R. K. Pandey, B. B. Upadhyay, S. Poddar, and I. M. Stancu-Minasian: Hestenes–Stiefel-type conjugate direction algorithm for interval-valued multiobjective optimization problems, Algorithms, 18(7), 1–29 (2025). doi: 10.3390/a18070381 |
| B. B. Upadhyay, A. Ghosh, and X. Zhao: On Pareto efficiency criteria for nonsmooth multiobjective mathematical programming problems with equilibrium constraints on Hadamard manifolds via convexificators, Journal of Nonlinear and Convex Analysis, 25(11), 1–25 (2025) |
| B. B. Upadhyay, A. Ghosh, S. K. Tiwari, and I. M. Stancu-Minasian: Optimality conditions and duality for nonsmooth multiobjective geodesic pseudolinear programming problems in terms of bifunctions on Hadamard manifolds, Opsearch, 62(2), 1–32 (2025). doi: 10.1007/s12597-025-00913-1 |
| B. B. Upadhyay, A. Ghosh, and N. Kanzi: Constraint qualifications and optimality conditions for nonsmooth multiobjective mathematical programming problems with vanishing constraints on Hadamard manifolds via convexificators, Journal of Mathematical Analysis and Applications, 542(2), 1–30 (2025). doi: 10.1016/j.jmaa.2024.128873 |
| B. B. Upadhyay, S. Sain, P. Mishra, and I. M. Stancu-Minasian: Existence results and gap functions for nonsmooth weak vector variational-hemivariational inequality problems on Hadamard manifolds, Mathematics, 13(6), 1–34 (2025). doi: 10.3390/math13060995 |
| X. L. Meng, B. B. Upadhyay, S. Poddar, J. C. Yao, and J. W. Chen: Robust optimality and duality for nonsmooth multiobjective semi-infinite programming problems with switching constraints under data uncertainty, Journal of Nonlinear and Convex Analysis, 26(12), 3359–3380 (2025) |
| B. B. Upadhyay, P. Mishra, I. M. Stancu-Minasian, and S. Sain: Gap functions and existence results for approximate vector variational inequality problems on Hadamard manifolds, Journal of Nonlinear and Convex Analysis, 26(11), 3097–3121 (2025) |
| B. B. Upadhyay, S. Sain, M. A. Kobis, and X. Zhao: Gap functions and global error bounds for mixed vector quasi-hemivariational inequality problems on Hadamard manifolds, Journal of Nonlinear and Convex Analysis, 26(12), 3307–3335 (2025) |
| B. B. Upadhyay, S. Poddar, J. C. Yao, and X. Zhao: Inexact proximal point method with a Bregman regularization for quasiconvex multiobjective optimization problems via limiting subdifferentials, Annals of Operations Research, 344(1), 1–30 (2024). doi: 10.1007/s10479-024-06461-z |
| B. B. Upadhyay, A. Ghosh, and X. Zhao: On constraint qualifications and optimality conditions for nonsmooth multiobjective semi-infinite programming problems with switching constraints, Optimization, 1–26 (2024). doi: 10.1080/02331934.2024.2437795 |
| B. B. Upadhyay, S. K. Singh, and I. M. Stancu-Minasian: Optimality and duality for robust nonsmooth semidefinite multiobjective programming problems using convexificators, Journal of the Operations Research Society of China, 13(1), 1–25 (2024). doi: 10.1007/s40305-024-00570-z |
| B. B. Upadhyay, R. K. Pandey, S. Zeng, and S. K. Singh: On conjugate direction-type method for interval-valued multiobjective quadratic optimization problems, Numerical Algorithms, 1–31 (2024). doi: 10.1007/s11075-024-01967-w |
| B. B. Upadhyay, S. K. Singh, I. M. Stancu-Minasian, and A. M. Rusu-Stancu: Robust optimality and duality for nonsmooth multiobjective programming problems with vanishing constraints under data uncertainty, Algorithms, 17(11), 482–510 (2024). doi: 10.3390/a17110482 |
| B. B. Upadhyay, S. K. Singh, and I. M. Stancu-Minasian: Constraint qualifications and optimality conditions for nonsmooth semidefinite multiobjective programming problems with mixed constraints using convexificators, Mathematics, 12(20), 3202–3223 (2024). doi: 10.3390/math12203202 |
| B. B. Upadhyay, A. Ghosh, S. Treanta, and J. C. Yao: Constraint qualifications and optimality conditions for multiobjective mathematical programming problems with vanishing constraints on Hadamard manifolds, Mathematics, 12(19), 3047–3061 (2024). doi: 10.3390/math12193047 |
| S. Treanta, C. F. Pirje, J. C. Yao, and B. B. Upadhyay: Efficiency conditions in new interval-valued control models via modified T-objective functional approach and saddle-point criteria, Mathematical Modelling and Control, 5(2), 1–13 (2024) |
| B. B. Upadhyay, S. Sain, and I. M. Stancu-Minasian: Lagrange duality and saddle point optimality conditions for nonsmooth interval-valued multiobjective semi-infinite programming problems with vanishing constraints, Axioms, 13(9), 573–594 (2024). doi: 10.3390/axioms13090573 |
| B. B. Upadhyay, R. K. Pandey, and S. Zeng: A generalization of generalized Hukuhara Newton’s method for interval-valued multiobjective optimization problems, Fuzzy Sets and Systems, 492, 1–17 (2024). doi: 10.1016/j.fss.2024.109066 |
| B. B. Upadhyay, and A. Ghosh: Optimality conditions and duality for multiobjective semi-infinite optimization problems with switching constraints on Hadamard manifolds, Positivity, 28(4), 1–38 (2024). doi: 10.1007/s11117-024-01065-0 |
| B. B. Upadhyay, S. K. Singh, and I. M. Stancu-Minasian: Duality for nonsmooth semidefinite multiobjective programming problems with equilibrium constraints using convexificators, Journal of Nonlinear Sciences and Applications, 17(3), 128–149 (2024). doi: 10.22436/jnsa.017.03.03 |
| B. B. Upadhyay, I. M. Stancu-Minasian, S. Poddar, and P. Mishra: On approximate variational inequalities and bilevel programming problems, Axioms, 16(6), 1–22 (2024). doi: 10.3390/axioms13060371 |
| B. B. Upadhyay, and S. Poddar: Optimality conditions and duality for robust nonsmooth multiobjective semi-infinite optimization problems on Hadamard manifolds, Journal of Applied Analysis and Optimization, 8(2), 167–201 (2024) |
| B. B. Upadhyay, and S. Sain: Characterization of the solution set of nonsmooth semi-infinite programming problems on Hadamard manifolds, RAIRO Operations Research, 58(4), 2817–2844 (2024). doi: 10.1051/ro/2024096 |
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B.B. Upadhyay, Arnav Ghosh , N. Kanzi, H. Soroush:
Constraint Qualifications for Nonsmooth Multiobjective Programming Problems with Switching Constraints on Hadamard Manifolds Bulletin of the Malaysian Mathematical Sciences Society (2024). |
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B.B. Upadhyay, IM Stancu-Minasian, Subham Poddar, Priyanka Mishra: On Approximate Variational Inequalities and Bilevel Programming Problems, Preprints (2024). |
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B.B. Upadhyay, Arnav Ghosh , Savin Treanţă: Efficiency conditions and duality for multiobjective semi-infinite programming problems on Hadamard manifolds, Journal of Global Optimization (2024). |
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B.B. Upadhyay, R. K. Pandey and S. Liao: Newton’s method for interval-valued multiobjective optimization problem, Journal of Industrial and Management Optimization (2023). https://doi.org/10.3934/jimo.2023138 |
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B. B. Upadhyay, R. K. Pandey, J. Pan, S. Zeng: Quasi-Newton Algorithms for solving interval-valued multiobjective optimization problems by using their certain equivalence, Journal of Computational and Applied Mathematics(2023). https://doi.org/10.1016/j.cam.2023.115550 |
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BB Upadhyay, Arnav Ghosh , Savin Treanţă: Optimality conditions and duality for nonsmooth multiobjective semi-infinite programming problems with vanishing constraints on Hadamard manifolds, Journal of Mathematical Analysis and Applications (2023) DOI: 10.1016/j.jmaa.2023.127785 |
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BB Upadhyay, Rupesh K. Pandey, Jinlan Pan, Shengda Zeng: Quasi-Newton Algorithms for solving interval-valued multiobjective optimization problems by using their certain equivalence, Journal of Computational and Applied Mathematics (2023), DOI: 10.1016/j.cam.2023.115550 |
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BB Upadhyay, A Ghosh, Savin Treanta. “Constraint Qualifications and Optimality Criteria for Nonsmooth Multiobjective Programming Problems on Hadamard Manifolds”, Journal of Optimization Theory and Applications (2023). DOI: 10.1007/s10957-023-02301-5 |
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Zahra Jafariani, Nader Kanzi, Maryam Naderi Parizi and Balendu Bhooshan Upadhyay, On Frèchet normal cone for nonsmooth mathematical programming problems with switching constraints, RAIRO-Operations Research DOI: https://doi.org/10.1051/ro/2023138 |
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BB Upadhyay, A Ghosh, S. Treanta: Optimality conditions and duality for nonsmooth multiobjective
semi-infinite programming problems on Hadamard manifolds, Bulletin of the Iranian Mathematical Society 49(45) 2023 (MCQ:0.33) (IF=0.776) DOI; 10.1007/s41980-023-00791-7 . |
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BB Upadhyay, A Ghosh: I.M. Stancu Minasian: Second-order Optimality Conditions and Duality for
Multiobjective Semi-infinite Programming Problems on Hadamard Manifolds, Asia Pacific Journal of
Operational Research, 2023 (MCQ:0.12) (IF=1.070) DOI.:10.1142/S0217595923500197 |
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A Ghosh, BB Upadhyay: I.M. Stancu Minasian: Duality for Multiobjective Programming Problems with
Equilibrium Constraints on Hadamard Manifolds under Generalized Geodesic Convexity, WSEAS Transaction
on Mathematics, 22(31) 259-270 (2023) DOI: 10.37394/23206.2023.22.31 |
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BB Upadhyay, A Ghosh: ,On Constraint Qualifications for Mathematical Programming Problems with
Vanishing Constraints on Hadamard manifolds, Journal of Optimization Theory and Applications,
doi.org/10.1007/s10957-023-02199-2 (2023)
DOI: 10.1007/s10957-023-02207-2 (2023)
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A Ghosh, BB Upadhyay,IM Stancu-Minasian, Pareto Efficiency Criteria and Duality for Multiobjective Fractional Programming Problems with Equilibrium Constraints on Hadamard Manifolds Mathematics, 1-28 |
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A Ghosh, BB Upadhyay,IM Stancu-Minasian, Constraint Qualifications for Multiobjective Programming Problems on Hadamard Manifolds, Australian Journal of Mathematical Analysis and Applications 20 (2), 1-18 |
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BB Upadhyay, Lijie Li, Priyanka. Mishra: Nonsmooth interval-valued multiobjective optimization
Problems and generalized variational inequalities on Hadamard manifolds, Applied Set-Valued Analysis
and Optimization, 5 (1) 69-84, (2023), https://doi.org/10.23952/asvao.5.2023.1.05 . |
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B.B. Upadhyay, A. Ghosh, R.N. Mohapatra: Mond-Weir and Wolfe type duality for nonsmooth multiobjective fractional programming problems with equilibrium constraints on Hadamard manifolds. (Accepted ) Commun. Optim. Theory. (2023). |
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B.B. Upadhyay, S.K. Singh: Optimality and duality for nonsmooth semidefinite multi- objective fractional programming problems using convexificators, UPB Scientific Bulletin, Series A: Applied Mathematics and Physics, (2023) (Accepted). |
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Savin Treanta, BB Upadhyay, Arnav, ,Ghosh, Nanlaopma, K.: Optimality Conditions for Multiobjective
Mathematical Programming Problems with Equilibrium Constraints on Hadamard Manifolds, Mathematics, 10
(19), 3516 (2022) https://doi.org/10.3390/math10193516 Impact Factor: 2.592, Q1 |
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BB Upadhyay, Arnav, ,Ghosh, Priyanka Mishra, Savin Treanta: Optimality conditions and duality for
multiobjective semi-infinite programming problems on Hadamard manifolds using generalized geodesic
convexity, RAIRO Operations Research, 56(4) 2037-2065 (2022) DOI: 10.1051/ro/2022098, Impact Factor:
2.526, Q1 |
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BB Upadhyay, Savin Treanta and Priyanka Mishra On Minty Variational Principle for Nonsmooth
Multiobjective Optimization Problems on Hadamard Manifolds, Optimization, 71 (6), 1-19, 2022,
doi.org/10.1080/02331934.2022.2088369, Impact Factor: 2.456, Q1, H-index: 46; MCQ: .99 [72(4) 1-28]
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BB Upadhyay, I.M. Stancu-Minasian and Priyanka Mishra On relations between nonsmooth
interval-valued multiobjective programming problems and generalized Stampacchia vector variational
inequalities Optimization, Optimization (2022) doi:10.1080/02331934.2022.2069569 Impact Factor: 2.360, Q1, H-index:
46; MCQ: .99 [72(4) 1-25] |
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Savin Treanta, Priyanka Mishra, BB Upadhyay: Minty Variational Principle for Nonsmooth
Interval-Valued Vector Optimization Problems on Hadamard Manifolds,Mathematics , 2022, 10, 523.
https://doi.org/10.3390/math10030523 Impact Factor: 2.592, Q1, . |
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BB Upadhyay, T. Antczak, S.K. Mishra, K. Shukla: Nondifferentiable generalized minimax fractional
programming under (phi,rho)-invexity, Yugoslav Journal of Operations Research 31 (1), pp. 3-27 (2022),
DOI: https://doi.org/10.2298/YJOR200915018U. |
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BB Upadhyay, I.M. Stancu Minasian, Priyanka Mishra, Ram Mohapatra: On Generalized Vector
Variational Inequalities and Nonsmooth Vector Optimization Problems on Hadamard Manifolds involving
Geodesic Approximate Convexity, Advances in Nonlinear Variational Inequalities, 25(2), 1-26 (2022).
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BB Upadhyay, Priyanka Mishra, Ram Mohapatra: On Generalized Vector Variational Inequalities and
Nonsmooth Vector Optimization Problems on Hadamard Manifolds involving Geodesic Approximate Convexity,
Advances in Nonlinear Variational Inequalities, 25(2), 65-80 (2022) |
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T. Antczak, S.K. Mishra and BB Upadhyay: Optimality conditions and duality for generalized
fractional minimax program involving locally Lipschitz -invexity, Control and Cybernetics, 47(1), 5-32
(2018) Impact Factor:0.379 |
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BB Upadhyay and R.N. Mohapatra: Sufficient optimality conditions and duality for mathematical
programming problems with equilibrium constraints, Communications on Applied Nonlinear Analysis, 25(4)
68-84, 2018 (2018 MCQ-0.05) (H index:14) |
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BB Upadhyay, N. Priyobarta, Y.S. Rohen: Sufficient optimality conditions and duality for nonsmooth
multiobjective problems via higher order strong convexity, Yugoslav Journal of Operations Research,
27(2) 227-242, 2017 (H Index-19) (MCQ-0.41) https://doi.org/10.2298/YJOR170119013U . |
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BB Upadhyay, R. N. Mohapatra, S. K. Mishra On relationships between vector variational inequality
and nonsmooth vector optimization problems via strict minimizers, Advances in Nonlinear Variational
Inequalities, 20 (2), 1-16, 2017 (MCQ-0.07). |
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N. Priyobarta, Y.S. Rohen, BB Upadhyay: Some fixed point result in fuzzy cone metric spaces,
International Journal of Pure and Applied Mathematics, 109 (3), 573-582, 2017, DOI:
10.12732/ijpam.v109i3.7 |
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Tadeusz Antczak, S.K. Mishra and BB Upadhyay: First order duality results for a new class of
nonconvex semi-infinite minimax fractional programming problems, Journal of Advanced Mathematical
Studies, 9(1) pp. 132-162, (2016) (MCQ-0.12) |
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BB Upadhyay, S.K. Mishra: Nonsmooth semi-infinite minmax programming involving generalized
–invexity, Journal of System Sciences and Complexity. 28(4), 857-875 (2015) DOI:
10.1007/s11424-015-2096-6 Impact Factor-1.260 . |
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BB Upadhyay, S.K. Mishra and S.K. Porwal: Explicitly geodesic B-preinvex functions on Riemannian
manifolds, Transactions on Mathematical Programming and Applications, 3(2), pp. 1-14, 2015 |
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S.K. Mishra, BB Upadhyay and L.T. Hoai An: Lagrange multiplier characterization of Solution sets
of constrained nonsmooth pseudolinear Optimization Problems, Journal of Optimization Theory and
Applications, Springer, Volume 160 (3), pp. 763-777 (2014) DOI 10.1007/s10957-013-0313-9, Impact
Factor:1.432 (H Index-82) (MCQ-1.0). |
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S.K. Mishra, BB Upadhyay: Nonsmooth Minimax Fractional Programming Involving -Pseudolinear
Functions, Optimization, Volume 63 (5), pp. 775–788 (2014) Taylor & Francis,
DOI:10.1080/02331934.2012.689833, ISBN:0233-1934 (Print), 1029-4945 (Online) Impact Factor: 0.795 (H
Index-39) (MCQ-0.80). |
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S.K. Mishra, BB Upadhyay: Some relations between vector variational inequality problems and
nonsmooth vector optimization problems using quasi efficiency, Positivity, Springer, 17, pp. 1071-1083
(2013) ISSN: 1385-1292 (Print) 1572-9281 (Online) Impact Factor: 0.368 (MCQ-0.65) |
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Yadvendra Singh, Amod Kumar, BB Upadhyay, Vinay Singh: On sufficiency in multiobjective
programming involving generalized (G, C, )-type I functions, Yugoslav Journal of Operations Research,
23 (1), pp. 65-76, 2013. (MCQ-0.08) |
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S.K. Mishra, BB Upadhyay: Efficiency and Duality in Nonsmooth Multiobjective Fractional
Programming Involving -Pseudolinear Functions, Yugoslav Journal of Operations Research, 22 (1), pp.
3-18, 2012. (MCQ-0.08). |