DEPARTMENT.FACULTY

photo
Prof. Qamrul Hasan Ansari
  • DEPARTMENT_STAFF.QUALIFICATION

    Ph.D.

  • DEPARTMENT_STAFF.DESIGNATION

    Professor

  • DEPARTMENT_STAFF.THRUST_AREA

    Nonlinear Analysis and Optimization

  • DEPARTMENT_STAFF.ADDRESS

    Department of Mathematics, Aligarh Muslim UniversityAligarh 202 002, India

  • DEPARTMENT_STAFF.MOBILE

    8126633494

  • DEPARTMENT_STAFF.EMAIL

    qhansari@gmail.com

  • DEPARTMENT_STAFF.TIME_TABLE

    Time-Table (2021-22)

DEPARTMENT_STAFF.COMPLETE_CV

Dr. Qamrul Hasan Ansari is a professor in the Department of Mathematics, Aligarh Muslim University, Aligarh, India. He is the recipient of AMU Outstanding Research Award of the Years 2021 and ranked among top 2% scientists in the World by Stanford University 2021. 
He has published more than 250 research papers in internationally repute journal. He is the associate editor of Journal of Optimization Theory and Applications, Fixed Point Theory and Applications, Carpathian Journal of Mathematics, Fixed Point Theory (Romania), etc. He has acted as a guest editor of several internationally repute journals, namely, Positivity, Journal of Global Optimization, Applicable Analysis, Journal of Fixed Point Theory, etc. He is listed in the top cited 800 mathematicians of the world since 2007. In the year 2017, he is placed at 200th position. He is regular visitor of several universities around the world. He is the author of a book on Metric Spaces by published by Narosa and co-author of a book on Generalized Convexity and Nonsmooth Variational Inequalities, Published Taylor & Francis, CRC Press. He has edited more than 8 booked published by Springer, Taylor & Francis, Elsevier, etc. He has delivered in more than plenary / invited talks in more than 70 international conference / workshops across the World. He is one of the most cited persons in his department with more than 4121 citation and with h-index 39.

  1. Book Publications:

    1. Qamrul Hasan Ansari, Elisabeth Köbis and Jen-Chih Yao, Vector Variational Inequalities and Vector Optimization: Theory and Applications, Springer International, 2017. 
    2. Q.H. Ansari, C.S. Lalitha and M. Mehta, Generalized Convexity, Nonsmooth Variational Inequalities and Nonsmooth Optimization, CRC Press, Taylor & Francis Group, Boca Raton, London, New York, 2014. 
    3. Q.H. Ansari, Metric Spaces – Including Fixed Point Theory and Set-Valued Maps, Narosa Publishing House, New Delhi, 2010. Also Published by Alpha Science International Ltd. Oxford, U.K., 2010.

  2. Book Edited Publication:

    1. Monther R. Alfuraidan and Qamrul H. Ansari (Editors), Fixed Point Theory and Graph Theory: Foundations and Integrative Approaches Elsevier, Amsterdam, Boston, New York, London, 2016. 
    2. Saleh A.R. Almezel, Falleh R.M. Al-Solamy and Qamrul H. Ansari (Editors), Fixed Point Theory, Variational Analysis, and Optimization, CRC Press, Taylor & Francis Group, Boca Raton, London, New York, 2014. 
    3. Qamrul Hasan Ansari (Editor), Nonlinear Analysis: Approximation Theory, Optimization and Applications, Birkhäuser, Springer, New Delhi, Heidelberg, New York, Dordrecht, London, 2014.
    4. Saleh Almezel, Qamrul Hasan Ansari and Mohamed Amine Khamsi (Editors), Topics in Fixed Point Theory, Springer, Cham, Heidelberg, New York, Dordrecht, London, 2014.
    5. R. Ahmad, Q.H. Ansari and M. Imdad (Editors), Analysis and Its Applications, Narosa Publishing House, New Delhi, 2013. 
    6. Q.H. Ansari and J.-C. Yao (Editors), Recent Advances in Vector Optimization, SpringerVerlag, Berlin, Heidelberg, 2012. 
    7. Q.H. Ansari (Editor), Topics in Nonlinear Analysis and Optimization, World Education, Delhi, 2012.

  3. Chapters in Books:

    1. Q.H. Ansari and D.R. Sahu, Extragradient Methods for Some Nonlinear Problems, in Fixed Point Theory and Graph Theory: Foundations and Integrative Approaches, Edited by Monther R. Alfuraidan and Qamrul H. Ansari, Elsevier, Amsterdam, Boston, New York, London, pp. 187–230, 2016. 

    2. Q.H. Ansari, A. Rehan Split Feasibility and Fixed Point Problems, in Nonlinear Analysis: Approximation Theory, Optimization and Applications, Edited by Qamrul Hasan Ansari, Birkhäuser, Springer, New Delhi, Heidelberg, New York, Dordrecht, London, pp. 281–322, 2014. 

    3. Q.H. Ansari, L.-C. Ceng and H. Gupta, Triple Hierarchical Variational Inequalities, in Nonlinear Analysis: Approximation Theory, Optimization and Applications, Edited by Qamrul Hasan Ansari, Birkhäuser, Springer, New Delhi, Heidelberg, New York, Dordrecht, London, pp. 231–280, 2014. 

    4. D.R. Sahu and Q.H. Ansari, Hierarchical Minimization Problems and Applications, in Nonlinear Analysis: Approximation Theory, Optimization and Applications, Edited by Qamrul Hasan Ansari, Birkhäuser, Springer, New Delhi, Heidelberg, New York, Dordrecht, London, pp. 199–229, 2014. 

    5. Q.H. Ansari, An Introduction to Variational-like Inequalities, in Fixed Point Theory, Variational Analysis, and Optimization, Edited by Saleh A.R. Almezel, Falleh R.M. Al-Solamy and Qamrul H. Ansari, CRC Press, Taylor & Francis Group, Boca Raton, London, New York, pp. 207–245, 2014. 

    6. Q.H. Ansari and D.R. Sahu, Some Iterative Methods for Fixed Point Problems, in Topics in Fixed Point Theory, Edited by Saleh Almezel, Qamrul Hasan Ansari and Mohamed Amine Khamsi, Springer, Cham, Heidelberg, New York, Dordrecht, London, pp. 273–300, 2014 

    7. Qamrul Hasan Ansari, Ekeland’s Variational Principle and Its Extensions with Applications, in Topics in Fixed Point Theory, Edited by Saleh Almezel, Qamrul Hasan Ansari and Mohamed Amine Khamsi, Springer, Cham, Heidelberg, New York, Dordrecht, London, pp. 65–100, 2014. 

    8. S. Al-Homidan, Q.H. Ansari and J.-C. Yao, Nonsmooth Invexities, Invariant Monotonicities and Nonsmooth Vector Variational-like Inequalities with Applications to Vector Optimization, in Recent Developments in Vector Optimization, Edited by Q.H. Ansari and J.-C. Yao, Springer-Verlag, Berlin, 2012. 

    9. Q.H. Ansari and L.-J. Lin, Ekeland type Variational Principle and Equilibrium Problems, in Topics in Nonconvex Optimization, Theory and Applications, Edited by S.K. Mishra, Springer-Verlag, New York, Berlin, pp. 147–174, 2011. 

    10. Q.H. Ansari and J.-C. Yao, Some Equivalences among Nonlinear Complementarity Problems, Least-Element Problems and Variational Inequality Problems in Ordered Spaces, in Topics in Nonconvex Optimization, Theory and Applications, Edited by S.K. Mishra, Springer-Verlag, New York, Heidelberg, pp. 1-25, 2011. 

    11. Q.H. Ansari and J.-C. Yao, Systems of Vector Quasi-Equilibrium Problems and Their Applications, in Variational Analysis and Generalized Differentiation in Optimization and Control: In Honour of Boris S. Mordukhovich, Edited by Regina S. Burachik and Jen-Chih Yao, Springer-Verlag, Berlin, New York, 2011. 

  4. Research Paper Publications: 2021

    1. J.W. Chen, S. Al-Homidan, Q. H. Ansari, J. Li and Y. Lv, Robust Necessary Optimality Conditions for Nondifferentiable Complex Fractional Programming with Data Uncertainty, To appear in Journal of Optimization Theory and Applications (2021).
    2. P. N. Anh and Q.H. Ansari, Auxiliary Principle Technique for Hierarchical Equilibrium Problems, To appear in Journal of Optimization Theory and Applications (2021) 
    3. S. Al-Homidan, Q.H. Ansari and M. Islam, Existence Results and Two Step Proximal Point Algorithm for Equilibrium Problems on Hadamard Manifolds, To appear in Carpathian Journal of Mathematics (2021) 
    4. S. Al-Homidan, Q.H. Ansari and G. Kassay, Bregman Type Regularization of Variational Inequalities with Mosco Approximation of the Constraint Set, To appear in Positivity (2021)
    5. Q.H. Ansari, N. Husain and P.K. Sharma, Levitin-Polyak Well-Posedness for Set Optimization Problems, To appear in Journal of Nonlinear and Convex Analysis (2021)

    6. D. Fang, Q.H. Ansari and J.-C. Yao, New Regularity Conditions and Fenchel Dualities for DC Optimization Problems Involving Composite Functions, To appear in Optimization (2021) 

    7. L. V. Nguyen, Q. H. Ansari and X. Qin, Weak Sharpness and Finite Convergence for Solutions of Nonsmooth Variational Inequalities in Hilbert Spaces, To appear in Applied Mathematics & Optimization 2021

    8. Q. H. Ansari and T.Q. Bao, A limiting subdifferential version of Ekeland’s variational principle in set optimization, To appear in Optimization Letters (2021)
    9. Q. H. Ansari and Feeroz Babu, Proximal point algorithm for inclusion problems in Hadamard manifolds with applications, To appear in Optimization Letters (2021) 

    10. O. Chadli, Q.H. Ansari, S. Al-Homidan and M. Alshahrani, Optimal control of problems governed by mixed quasi-equilibrium problems under monotonicity-type conditions with applications, To appear in Applied Mathematics and Optimization (2021) 

    11. O. Chadli, Q.H. Ansari, S. Al-Homidan and M. Alshahrani, Optimal Control of Systems Governed by Mixed Equilibrium Problems under Monotonicity-Type Conditions with Applications, To appear in Applied Mathematics and Optimization (2021)

  5. Research Paper Publications 2020

    1. L.Q. Thuy, N.T. Toan, Q.H. Ansari and J.-C. Yao, Second-Order Necessary Optimality Conditions for a Discrete Optimal Control Problem with Nonlinear State Equations, Optimal Control, Applications and Methods, 41 (2020), 2250-2281. 
    2. Q. H. Ansari, F. Babu and J.-C. Yao, Inexact Proximal Point Algorithms for Inclusion Problems on Hadamard Manifolds, Journal of Nonlinear and Convex Analysis 21(10) (2020), 2417-2432 
    3. Q. H. Ansari, F. Babu and M. Zeeshan, Existence results and implicit viscosity methods for hierarchical problems on Hadamard manifolds, Journal of Nonlinear and Convex Analysis 21(10) (2020), 2299-2324 
    4. Q. H. Ansaria, P. K. Sharma and X. Qin, Characterizations of Robust Optimality Conditions via Image Space Analysis, Optimization 69(9) (2020), 2063-2083 
    5. S. Al-Homidan, Q. H. Ansari, F. Babu, J.C. Yao, Viscosity Method with a ?-Contraction Mapping for Hierarchical Variational Inequalities on Hadamard Manifolds, Fixed Point Theory 21(2) (2020), 561-584 
    6. X.-B. Li, Q.H. Ansari, S. Al-Homidan and J.-C. Yao, Robust Farkas Minkowski Constraint Qualification for Convex Inequality System under Data Uncertainty, Journal of Optimization Theory and Applications 185 (3) (2020), 785–802 
    7. J. Liu, Q. H. Ansari, J. Chen and W. Zhang, Generalized well-posedness with perturbation of set optimization problems in terms of lower set less order relation, Journal of Nonlinear and Convex Analysis 21(5) (2020), 1081-1096 
    8. L. V. Nguyen, Q. H. Ansari and X. Qin, Linear conditioning, weak sharpness and finite convergence for equilibrium problems, Journal of Global Optimization 77(2) (2020), 405-424 
    9. M. Ertürk, F. Gürsoy, Q.H. Ansari and V. Karakaya, Picard type iterative method with applications to minimization problems and split feasibility problems, Journal of Nonlinear and Convex Analysis 21 (4) (2020), 945-953 
    10. Q. H. Ansari and Feeroz Babu, Existence and Boundedness of Solutions to Inclusion Problems for Maximal Monotone Vector Fields in Hadamard Manifolds, Optimization Letters 14(3) (2020), 711-727 
    11. Q. H. Ansari and M. Islam, Explicit iterative algorithms for solving equilibrium problems on Hadamard manifolds, Journal of Nonlinear and Convex Analysis 21(2) (2020), 425-439. 
    12. Q. H. Ansari, A. Hamel and P. K. Sharma, Ekeland’s Variational Principle with Weighted Set Order Relations, Mathematical Methods of Operations Research 91(1) (2020), 117-136 
    13. S. Al-Homidan, Q. H. Ansari and G. Kassay, Vectorial Form of Ekeland Variational Principle with Applications to Vector Equilibrium Problems, Optimization 69(3) (2020), 415-536. 
    14. A. Bnouhachem, Q.H. Ansari and J.-C. Yao, An improvement of alternating direction method for solving variational inequality problems with separable structure, Fixed Point Theory 21(1) (2020), 67-78. 
    15. Q. H. Ansari, M. Islam and J.-C. Yao, Nonsmooth variational inequalities on Hadamard manifolds, Applicable Analysis 99(2) (2020), 340-358 and 359-360-Correction 

  6. Research Paper Publications: 2019

    1. S. Al-Homidan, Q. H. Ansari and M. Islam, Browder type Fixed Point Theorem on Hadamard Manifolds with Applications, Journal of Nonlinear and Convex Analysis 20(11) (2019), 2397- 2410. 
    2. Q. H. Ansari and P. K. Sharma, Ekeland type variational principle for set-valued maps in quasi-metric spaces with applications, Journal of Nonlinear and Convex Analysis 20(8) (2019) 1683-1700 

    3. Q. H. Ansari, E. Köbis and P. K. Sharma, Characterizations of Multiobjective Robustness via Oriented Distance Function and Image Space Analysis, Journal of Optimization Theory and Applications, 181 (3) (2019), 817-839. 

    4. S. Al-Homidan, Q. H. Ansari and O. Chadli, Noncoercive stationary Navier-Stokes equations of heat-conducting fluids modeled by hemivariational inequalities: An equilibrium problem approach, Results in Mathematics 74 (2019):132 

    5. Q. H. Ansari, J. Balooee, Auxiliary principle technique for solving regularized nonconvex mixed equilibrium problems, Fixed Point Theory, 20(2) (2019), 431-450. 

    6. Q.H. Ansari and J. Balooee, Auxiliary principle technique for solving regularized nonconvex set-valued mixed variational inequalities, Revista de la Real Academia de Ciencias Exactas, Fisicas y Naturales. Series A. Matematicas, 113(2) (2019), 1101-1119. 

    7. S. Al-Homidan, Q.H. Ansari and O. Chadli, Noncoercive mixed equilibrium problems under pseudomonotone perturbations and applications to nonlinear evolution equations with lack of coercivity, Applicable Analysis, 98(7) (2019), 1199-1223 

    8. S. Al-Homidan, Q. H. Ansari and G. Kassay, On Sensitivity of Vector Equilibria by Means of the Diagonal Subdifferential Operator, Journal of Nonlinear and Convex Analysis 20(3) (2019), 527-537 

    9. S. Al-Homidan, Q.H. Ansari and F. Babu, Halpern and Mann type Algorithms for Fixed Points and Inclusion Problems on Hadamard Manifolds, Numerical Functional Analysis and Optimization 40(6) (2019), 621-653 

    10. S. Al-Homidan, Q.H. Ansari and G. Kassay, Takahashi’s Minimization Theorem and Some Related Results in Quasi-metric Spaces, Journal of Fixed Point Theory and Applications 21 (2019) Article ID 38 

    11. X.-b. Li, N.-j. Huang. Q. H. Ansari and J.-C. Yao, Convergence Rate of Descent Method with New Inexact Line-search on Riemannian Manifolds, Journal of Optimization Theory and Applications 180(3) (2019), 830-854 

    12. Q. H. Ansari, Feeroz Babu and Jen-Chih Yao, Regularization of Proximal Point Algorithms in Hadamard Manifolds, Journal of Fixed Point Theory and Applications 21 (2019) Article ID 25

  7. Research Paper Publications 2018

    1. L.Y. Shi, Q.H. Ansari, J.C. Yao and C.F. Wen, Linear convergence of gradient projection algorithm for split equality problems, Optimization 67(12) (2018), 2347-2358

    2. Q. H. Ansari, E. Köbis and P. K. Sharma, Characterizations of set relations with respect to variable domination structures via oriented distance function, Optimization 67(9) (2018), 1389-1407

    3. Q. H. Ansari, P. K. Sharma and J.-C. Yao, Minimal element theorems and Ekeland’s variational principle with new set order relations, Journal of Nonlinear and Convex Analysis 19(7) (2018), 1127-1139

    4. M. Ertürk, F. Gürsoy, Q.H. Ansari and V. Karakaya, Modified Picard type iterative algorithm for nonexpansive mappings Journal of Nonlinear and Convex Analysis 19(6) (2018), 919-933

    5. A. Bnouhachem, Q.H. Ansari and S. Al-Homidan, SQP alternating direction method for structured variational inequalities, Journal of Nonlinear and Convex Analysis, 19(3) (2018), 461-476

    6. M. Abbas, M. AlShahrani, Q.H. Ansari, O.S. Iyiola and Y. Shehu, Iterative Methods for Solving Proximal Split Minimization Problems, Numerical Algorithms, 78(1) (2018), 193-215

    7. Q.H. Ansari Feeroz Babu and Xiao-Bo Li, Variational Inclusion Problems in Hadamard Manifolds, Journal of Nonlinear and Convex Analysis, 19(2) (2018), 219-237

    8. D.H. Fang, Q.H. Ansari and X.P. Zhao, Constraint Qualifications and Zero Duality Gap Properties in Conical Programming Involving Composite Functions, Journal of Nonlinear and Convex Analysis, 19(1) (2018), 53-69


  8. Research Paper Publications 2017

    1. Q.H. Ansari, Javad Balooee, Adrian Petrusel, Some Remarks on Regularized Multivalued Nonconvex Equilibrium Problems, Miskolc Mathematical Notes 18(2) (2017), 573-593.

    2. S. Al-Homidan, Q.H. Ansari and L.V. Nguyen, Weak Sharp Solutions for Nonsmooth Variational Inequalities, Journal of Optimization Theory and Applications 175(3) (2017), 683-701.

    3. S. Al-Homidan, Q.H. Ansari and L.V. Nguyen, Finite convergence analysis and weak sharp solutions for variational inequalities, Optimization Letters 11(8) (2017), 1647-1662.

    4. X.L. Qin, Q.H. Ansari and J.-C. Yao, A forward-backward iterative method for zero points of sum of two accretive operators, Carpathian Journal of Mathematics 33(3) (2017), 353-363.

    5. Jiawei Chen, Q.H. Ansari and J.C. Yao, Characterizations of set order relations and constrained set optimization problems via oriented distance function, Optimization 66(11) (2017), 1741-1754.

    6. S. Al-Homidan, Q.H. Ansari and R. Burachik, Weak sharp solutions for generalized variational inequalities, Positivity 21(3) (2017), 1067-1088.

    7. Q.H. Ansari, M. Islam and J.-C. Yao, Nonsmooth convexity and monotonicity in terms of a bifunction on Riemannian manifolds, Journal of Nonlinear and Convex Analysis, 18(4) (2017), 743-762.

    8. Q.H. Ansari, J. Balooee and K. Dogan Iterative schemes for solving regularized nonconvex mixed equilibrium problems, Journal of Nonlinear and Convex Analysis, 18(4) (2017), 607- 622.

    9. F. Q. Xia, Q.H. Ansari and J.C. Yao, A new incremental constraint projection method for solving monotone variational inequalities, Optimization Methods & Software 32(3) (2017), 470-502.

    10. Q.H. Ansari, A. Rehan and J.-C. Yao, Split feasibility and fixed point problems for asymptotically k-strict pseudo-contractive mappings in intermediate sense, Fixed Point Theory 18(1) (2017), 57-68.

    11. . O. Chadli, Q.H. Ansari and S. Al-Homidan, Existence of solutions and algorithms for bilevel vector equilibrium problems: An auxiliary principle technique, Journal of Optimization Theory and Applications 172(3) (2017), 726-758

    12. Q.H. Ansari and A. Rehan, Iterative methods for generalized split feasibility problems in Banach spaces, Carpathian Journal of Mathematics 33(1) (2017), 9-26

  9. Research Paper Publications 2016

    1. O. Chadli, Q.H. Ansari and S. Al-Homidan, Existence of solutions for nonlinear implicit differential equations: An equilibrium problem approach, Numerical Functional Analysis and Optimization 37(11) (2016),1385-1419 
    2. D.R. Sahu Q.H. Ansari and J.C. Yao, Convergence of inexact Mann iterations generated by nearly nonexpansive sequences and applications, Numerical Functional Analysis and Optimization 37(10) (2016), 1312-1338 
    3. A. Bnouhachem, A. Latif and Q.H. Ansari, On the O(1/t) convergence rate of the alternating direction method with LQP regularization for solving structured variational inequality problems, Journal of Inequalities and Applications 2016 (2016), Article ID 297 
    4. . F. Gürsoy, D.R. Sahu and Q.H. Ansari, S-Iteration process for variational inclusions and its rate of convergence, Journal of Nonlinear and Convex Analysis 17(9) (2016), 1753-1767 
    5. Q.H. Ansari, A. Rehan and C.-F. Wen, Implicit and explicit algorithms for split common fixed point problems, Journal of Nonlinear and Convex Analysis 17(7) (2016), 1381-1397 
    6. J.W. Chen, Q. H. Ansari, Y.-C. Liou, and J.-C. Yao, A proximal point algorithm based on decomposition method for cone constrained multiobjective optimization problems, Computational Optimization and Applications 65(1)(2016), 289-308 
    7. S. Al-Homidan and Q.H. Ansari, Equilibrium constrained vector optimization problems, Journal of Nonlinear and Convex Analysis 17(5) (2016), 891-898 
    8. Q.H. Ansari and J. Balooee, Regularized general nonconvex mixed equilibrium problems: Predictor–corrector methods and algorithms, Journal of Nonlinear and Convex Analysis 17(4) (2016), 599-619 
    9. M. Alshahrani, S. Al-Homidan and Q.H. Ansari, Minimum and maximum principle sufficiency properties for nonsmooth variational inequalities, Optimization Letters 10(4) (2016), 805-819 
    10. A. Bnouhachem, Q.H. Anasari and J.-C. Yao, Strong convergence algorithm for hierarchical fixed point problems of a finite family of nonexpansive mappings, Fixed Point Theory 17(1) (2016), 47-62 
    11. O. Chadli, Q.H. Ansari and J.-C. Yao, Mixed equilibrium problems and anti-periodic solutions for nonlinear evolution equations, Journal of Optimization Theory and Applications168(2) (2016), 410-440 

  10. Research Paper Publications 2015

    1. M. AlShahrani, Mujahid Abbas, Q.H. Ansari and S. Al-Homidan, Iterative scheme for generalized nonlinear complementarity problems on isotone projection cones, Journal of Nonlinear and Convex Analysis 16(8) (2015), 1681-1697 
    2. Q.H. Ansari, A. Rehan, C.-F. Wen, Split hierarchical variational inequality problems and fixed point problems, Journal of Inequalities and Applications 2015 (2015), Article ID 793 
    3. A. Bnouhachem, S. Al-Homidan and Q.H. Ansari, New descent LQP alternating direction methods for solving a class of structured variational inequalities, Fixed Point Theory and Applications 2015 (2015), Article ID 137 
    4. S. Al-Homidan, M. AlShahrani and Q.H. Ansari, Weak sharp solutions for equilibrium problems in metric spaces, Journal of Nonlinear and Convex Analysis 16(7) (2015), 1185-1193 
    5. A. Bnouhachem, Q.H. Ansari and J.-C. Yao, An iterative algorithm for hierarchical fixed point problems for a finite family of nonexpansive mappings, Fixed Point Theory and Applications 2015 (2015), Article ID 111 
    6. Q.H. Ansari and A. Rehan, An Iterative Method for Split Hierarchical Monotone Variational Inclusions Fixed Point Theory and Applications 2015 (2015), Article ID 121 
    7. L.-C. Ceng, H. Gupta and Q.H. Ansari, Implicit and explicit algorithms for a system of nonlinear variational inequalities in Banach spaces, Journal of Nonlinear Analysis and Convex Analysis 16(5) (2015), 965-948 
    8. S. Al-Homidan and Q.H. Ansari, Nonsmooth weighted variational inequalities and nonsmooth vector optimization, Journal of Nonlinear and Convex Analysis 16(4) (2015), 667-684 
    9. L.-C. Ceng, Q.H. Ansari, A. Petrusel and J.-C. Yao, Approximation methods for triple hierarchical variational inequalities II, Fixed Point Theory 16(2) (2015), 237-260 
    10. A. Bnouhachem, Q.H. Ansari, C.-F. Wen, A projection descent method for solving variational inequalities, Journal of Inequalities and Applications 2015 (2015), Article ID 143, MS ID :1473126139160476 
    11. N.T. Toan, Q.H. Ansari and J.-C. Yao, Second-order necessary optimality conditions for a discrete optimal control problem, Journal of Optimization Theory and Applications, 165(3) (2015), 812-836 
    12. S. Al-Homidan, M. Alshahrani and Q.H. Ansari, System of nonsmooth variational inequalities with applications, Optimization 64(5) (2015), 1211-1218 
    13. L.-C. Ceng, Q.H. Ansari, A. Petrusel and J.-C. Yao, Approximation methods for triple hierarchical variational inequalities I, Fixed Point Theory 16(1) (2015), 67-90 
    14. S.A. Al-Mezel, Q.H. Ansari and L.-C. Ceng, Hybrid viscosity approach for hierarchical fixed point problems, Applicable Analysis 94(1) January (2015), 2-23 
    15. D.R. Sahu, Q.H. Ansari and J.C. Yao, The prox-Tikhonov-like forward-backward method and applications, Taiwanese Journal of Mathematics, 19(2) April (2015), 481-503

  11. Research Paper Publications 2014

  12. Q.H. Ansari, S. Eshghinezhad and M. Fakhar, Ekeland’s variational principle for set-valued maps with applications to vector optimization in uniform spaces, Taiwanese Journal of Mathematics, 18(6) December (2014), 1999-2020 
  13. L.-C. Ceng, A. Latif, Q.H. Ansari and J.-C. Yao, Hybrid extragradient method for hierarchical variational inequalities, Fixed Point Theory and Applications 2014 (2014) Article ID 222 
  14. A. Latif, D.R. Sahu and Q.H. Ansari, Variable KM-like algorithms for fixed point problems and split feasibility problems, Fixed Point Theory and Applications 2014 (2014) Article ID 211 
  15. Q.H. Ansari, N. Nimana and N. Petrot, Split hierarchical variational inequality problems and related problems, Fixed Point Theory and Applications 2014 (2014) Article ID 208 
  16. . A. Bnouhachem, S. Al-Homidan and Q.H. Ansari, An iterative method for common solutions of equilibrium problems and hierarchical fixed point problems, Fixed Point Theory and Applications 2014 (2014) Article ID 194 
  17. A. Bnouhachem and Q.H. Ansari, A descent LQP alternating direction method for solving variational inequality problems with separable structure, Applied Mathematics and Computation, 246 (2014), 519–532 
  18. Q.H. Ansari and J. Balooee, Iterative methods for a system of nonlinear generalized mixed implicit equilibrium problems in Banach spaces, Journal of Nonlinear and Convex Analysis 15(5) (2014), 867–906. 
  19. M. Alshahrani, Q.H. Ansari and S. Al-Homidan, Nonsmooth variational-like inequalities and nonsmooth vector optimization, Optimization Letters, 8(2) (2014), 739–751 
  20. Q.H. Ansari, J. Balooee and J.-C. Yao, Iterative algorithms for systems of extended regularized nonconvex variational inequalities and fixed point problems, Applicable Analysis, 93 (5) (2014), 972–993 
  21. Q.H. Ansari and J. Balooee, On a system of regularized nonconvex variational inequalities, Mathematical Inequalities and Applications, 17 (1) (2014), 161–177 
  22. L.-C. Ceng, A. Al-Otaibi, Q.H. Ansari and A. Latif, Relaxed and composite viscosity methods for variational inequalities, fixed points of nonexpansive mappings and zeros of accretive operators, Fixed Point Theory and Applications, Volume 2014 (2014), Article ID 29


  • Research Paper Publications: 2013

    1. L.-C. Ceng, S. Al-Homidan and Q.H. Ansari, Iterative algorithms with regularization for hierarchical variational inequality problems and convex minimization problems, Fixed Point Theory and Applications, 2013 (2013) Article ID 284 
    2. Q.H. Ansari and M. Rezaei, Generalized vector variational-like inequalities and vector optimization in Asplund spaces, Optimization, 62 (2013), 721–734 
    3. Q.H. Ansari and Javad Balooee, Predictor-corrector methods for general regularized nonconvex variational inequalities, Journal of Optimization Theory and Applications 159 (2013), 473-488 
    4. L.-C. Ceng, S. Al-Mezel and Q.H. Ansari, Implicit and explicit iterative methods for systems of variational inequalities and zeros of accretive operators, Applied and Abstract Analysis Volume 2013 (2013), Article ID 631382, 19 pages 
    5. M. Alshahrani, Q.H. Ansari and S. Al-Homidan, Existence results for nonsmooth vector quasi-variational-like inequalities, Abstract and Applied Analysis Volume 2013 (2013), Article ID 376829, 7 pages 
    6. J. Balooee and J.-C. Yao, Extended general nonlinear quasi-variational inequalities and projection dynamical systems, Taiwanese Journal of Mathematics 17(4) (2013), 1321-1352 
    7. D.R. Sahu, Q.H. Ansari and J.-C. Yao, An unified hybrid iterative method for hierarchical minimization problems, Journal of Computational and Applied Mathematics, 253 (2013), 208-221 
    8. L.-C. Ceng, Q.H. Ansari and C.-F. Wen, Multi-step implicit iterative methods with regularization for minimization problems and fixed point problems, Journal of Inequalities and Applications (2013) Volume 2013, Article No. 240 
    9. L.-C. Ceng, Q.H. Ansari and C.-F. Wen, Implicit relaxed and hybrid methods with regularization for minimization problems and asymptotically strict pseudocontractive mappings in the intermediate sense, Abstract and Applied Analysis (2013) Volume 2013, Article ID 854297, 14 pages 
    10. Z.-R. Kong, L.-C. Ceng, Q.H. Ansari C.T. Pang, Multi-step hybrid extragradient method for triple hierarchical variational inequalities, Abstract and Applied Analysis Volume 2013 (2013) Article ID 718624, 18 pages

  • Research Paper Publications 2012

    1. A. Latif, L.-C. Ceng and Q.H. Ansari, Multi-step hybrid viscosity method for systems of variational inequalities defined over sets of solutions of equilibrium problem and fixed point problems, Fixed Point Theory and Applications 2012 (2012), 186 
    2. L.-C. Ceng, Q.H. Ansari and J.-C. Yao, Relaxed hybrid steepest-descent methods with variable parameters for triple-hierarchical variational inequalities, Applicable Analysis, 91 (10) (2012), 1793-1810. 
    3. L.-C. Ceng, Q.H. Ansari, M.M. Wong and J.-C. Yao, Mann type hybrid extragradient method for variational inequalities, variational inclusions and fixed point problems, Fixed Point Theory, 13(2) (2012), 403-422. 
    4. Y.-C. Lin, H.C. Lai and Q.H. Ansari, Minimax theorems for set-valued mappings under cone-convexities, Applied and Abstract Analysis Volume 2012, (2012) Article ID 310818, 26 pages 
    5. . L.-C. Ceng, Q.H. Ansari and J.-C. Yao, Mann type iterative methods for finding a common solution of split feasibility and fixed point problems, Positivity, 16(3) (2012), 471-495 
    6. L.-C. Ceng, Q.H. Ansari and C.-F. Wen, Hybrid steepest-descent viscosity method for triple hierarchical variational inequalities, Applied Abstract Analysis, Volume 2012, (2012) Article ID 907105, 19 pages 
    7. L.-C. Ceng, Q.H. Ansari and J.-C. Yao, An extragradient method for split feasibility and fixed point problems, Computers and Mathematics with Applications, 64 (2012), 633-642 
    8. Q.H. Ansari, M. Rezaei and J. Zafarani, Generalized vector variational-like inequalities and vector optimization, Journal of Global Optimization, 53(2) (2012), 271-284 
    9. Q.H. Ansari and M. Rezaei, Invariant pseudolinearity with applications, Journal of Optimization Theory and Applications, 153(3) (2012), 587-601. 
    10. L.-C. Ceng, Q.H. Ansari and S. Schaible, Hybrid extragradient-like methods for generalized mixed equilibrium problems, systems of generalized equilibrium problems and optimization problems, Journal of Global Optimization, 53(1) (2012), 69-96 
    11. S. Al-Homidan and Q.H. Ansari, Relations between generalized vector variational-like inequalities and vector optimization problems, Taiwanese Journal of Mathematics 16(3) (2012), 987-998 
    12. L.-C. Ceng, Q.H. Ansari, N.-C. Wong and J.-C. Yao, Implicit iterative method for hierarchical variational inequalities, Journal of Applied Mathematics Volume 2012 (2012), Article ID 472935, 14 pages 
    13. A. Amini-Harandi, Q.H. Ansari and A.P. Farajzadeh, Existence of equilibria in complete metric spaces, Taiwanese Journal of Mathematics, 16(2) (2012), 777-785 
    14. Q.H. Ansari, A.P. Farajzadeh and S. Schaible, Existence of solutions of strong vector equilibrium problems, Taiwanese Journal of Mathematics, 16(1) (2012), 165-178 
    15. Generalized Pseudolinearity, Optimization Letters, 6(2) (2012) 241-251 (with M. Rezaei). 
    16. L.-C. Ceng, Q.H. Ansari and J.-C. Yao, Relaxed extragradient methods for finding minimumnorm solutions of the split feasibility problem, Nonlinear Analysis, 75 (4) March (2012), 2116-2125 
    17. . L.-C. Zeng, Q.H. Ansari, S. Schaible and J.-C. Yao, Hybrid viscosity approximate method for zeros of m-accretive operators in Banach spaces, Numerical Functional Analysis and Optimization 33(2) (2012), 142-165 


  • Research Paper Publications 2011

    1. L.-C. Ceng, Q.H. Ansari and J.-C. Yao, Iterative methods for triple hierarchical variational inequalities in Hilbert spaces, Journal of Optimization Theory and Applications 151(3) (2011), 489-512. 
    2. L.-C. Zeng, Q.H. Ansari, S. Schaible and J.-C. Yao, iterative methods for generalized equilibrium problems, systems of general generalized equilibrium problems and fixed point problems for nonexpansive mappings in Hilbert spaces, Fixed Point Theory 12 (2) (2011), 293-308 
    3. L.-C. Ceng, Q.H. Ansari and J.-C. Yao, Extragradient-projection method for solving constrained convex minimization problems, Numerical Algebra, Control and Optimization, 1(3) September (2011), 341-359 
    4. L.-J. Lin, S.-Y. Wang and Q.H. Ansari, Critical point theorems and Ekeland type variational principle with applications, Fixed Point Theory and Applications Volume 2011, (2011) Article ID 914624, 21 pages 
    5. L.C. Ceng, Q.H. Ansari and J.-C. Yao, Relaxed extragradient iterative methods for variational inequalities, Applied Mathematics and Computation, 218 (2011), 1112-1123 
    6. L.-C. Zeng, Q.H. Ansari, N.-C. Wong and J.-C. Yao, An extragradient-like approximation method for variational inequalities and fixed point problems, Fixed Point Theory and Applications 2011 (2011), 22 
    7. L.C. Zeng, S. Al-Homidan and Q.H. Ansari, Hybrid proximal-type algorithms for generalized equilibrium problems, maximal monotone operators and relatively nonexpansive mappings, Fixed Point Theory and Applications Volume 2011, Article ID 973028, (2011), 23 pages 
    8. L.C. Ceng, Q.H. Ansari and J.-C. Yao, Some iterative methods for finding fixed points and for solving constrained convex minimization problems, Nonlinear Analysis 74(16) (2011), 5286–5302 
    9. Lu-Chuan Ceng, Q.H. Ansari and J.-L. Ho, Hybrid viscosity-like approximation methods for general monotone variational inequalities, Taiwanese Journal of Mathematics, 15 (4) (2011), 1871–1896 
    10. . S. Al-Homidan, Q.H. Ansari and J.-C. Yao, Collectively fixed point and maximal element theorems in topological semilattice spaces, Applicable Analysis, 96 (6) June (2011), 865-888 
    11. S. Al-Homidan and Q.H. Ansari, Fixed point theorems on product topological semilattice spaces, generalized abstract economies and systems of generalized vector quasi-equilibrium problems, Taiwanese Journal of Mathematics, 15 (1) (2011), 307-330 
    12. L-C. Ceng, Q.H. Ansari and J.-C. Yao, On generalized vector mixed variational-like inequalities with complete semicontinuity, Dynamics of Continuous, Discrete and Impulsive Systems, Series B: Applications & Algorithms, 18 (2011), 727–747 


  • Research Paper Publications 2010

    1. L.-J. Lin and Q.H. Ansari, Systems of quasi-variational relations with applications, Nonlinear Analysis, 72(3-4) (2010), 1210–1220 
    2. L.-C. Ceng, Q.H. Ansari and J.-C. Yao, Hybrid proximal-type and hybrid shrinking projection algorithms for equilibrium problems, maximal monotone operators and relatively nonexpansive mappings, Numerical Functional Analysis and Optimization, 31(7)(2010), 763–797 
    3. L.-C. Ceng, Q.H. Ansari and J.-C. Yao, Hybrid pseudoviscosity approximation schemes for equilibrium problems and fixed point problems of infinitely many nonexpansive mappings, Nonlinear Analysis: Hybrid Systems, 4(4) (2010), 743–754 
    4. Q.H. Ansari and J. Jahn, T-Epiderivative of set-valued maps and its application to set optimization and generalized variational inequalities, Taiwanese Journal of Mathematics, 14(6) (2010), 2447–2468 
    5. L.C. Ceng, Q.H. Ansari and J.C. Yao, Strong and weak convergence theorems for asymptotically strict pseudocontractive mappings in intermediate sense, Journal of Nonlinear and Convex Analysis, 11(2) (2010), 283–308 
    6. Q.H. Ansari and M. Rezaei, Existence results for Stampacchia and Minty type vector variational inequalities, Optimization, 59(7) (2010), 1053–1065 
    7. . Q.H. Ansari and G.M. Lee, Nonsmooth vector optimization problems and Minty vector variational inequalities, Journal of Optimization Theory and Applications, 145(1) (2010), 1-16. 
    8. L.-C. Zeng, Q.H. Ansari, David S. Shyu and J.-C. Yao, Strong and weak convergence theorems for common solutions of generalized equilibrium problems and zeros of maximal monotone operators, Fixed Point Theory and Applications, Volume 2010 (2010), Article ID 590278, 33 pages 
    9. S. Al-Homidan and Q.H. Ansari, Generalized Minty vector variational-like inequalities and vector optimization problems, Journal of Optimization Theory and Applications, 144 (1) (2010), 1-11 
    10. S. Al-Homidan and Q.H. Ansari, Quasi-equilibrium problems with lower and upper bounds in ordered topological spaces, Journal of Nonlinear and Convex Analysis, 11(2), (2010), 345-355

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