Le Hai Yen


Department of Optimization and Control Theory
Research interests: Variational analysis, Rank minimization problems

Office: Building A5, Room 210
Tel: +84 (02)4 37563474/ 210
Email: lhyenATmath.ac.vn

Born in Haiphong in 1987

Education and academic degrees:

  • 2013: PhD in Paul Sabatier University, Toulouse, France

Research areas:
Variational analysis, Rank minimization problems, Copositive and completely positive matrices


List of publications in MathSciNet


List of recent publications
1F. Lara, R. T. Marcavillaca, Le Hai Yen, An extragradient projection method for strongly quasiconvex equilibrium problems with applications, Computational and Applied Mathematics, Volume 43 (2024), article number 128, (SCI-E, Scopus).
2Le Hai Yen, Le Dung Muu, A parallel subgradient projection algorithm for quasiconvex equilibrium problems under the intersection of convex sets. Optimization 71 (2022), no. 15, 4447–4462, (SCI-E, Scopus).
3Le Hai Yen, Le Dung Muu, A normal-subgradient algorithm for fixed point problems and quasiconvex equilibrium problems, Applied Set-Valued Analysis and Optimization, 2 (2020), No. 3, pp. 329-337.
4Le Hai Yen, Le Dung Muu, A subgradient method for equilibrium problems involving quasiconvex bifunctions, Operations Research Letter 48 (2020), 579-583, SCI-E, Scopus.
5Le Hai Yen, Nguyen Thi Thanh Huyen, Le Dung Muu, Muu, Le Dung A subgradient algorithm for a class of nonlinear split feasibility problems: application to jointly constrained Nash equilibrium models. Journal of Global Optimization 73 (2019), 849–868, SCI(-E); Scopus.
6Le Hai Yen, Vu Ngoc Phat, Stability analysis of linear polytopic descriptor systems using a novel copositive matrix approach, IEEE Trans. Auto. Control., Vol. 64, No11, 4684-4690, 2019, SCI(-E); Scopus.
7Le Hai Yen, Le Dung Muu, Nguyen Thi Thanh Huyen, An algorithm for a class of split feasibility problems: application to a model in electricity production, Mathematical Methods of Operations Research, 84, (2016), 549-565, SCI(-E); Scopus.
8Jean-Baptiste Hiriart-Urruty, Le Hai Yen, The Viscosity Subdifferential of the Rank Function via the Corresponding Subdifferential of its Moreau Envelopes, Acta Mathematica Vietnamica, 40 (2015),735-746, Scopus.
9Le Hai Yen, Hiriart-Urruty, Jean-Baptiste, From Eckart-Young approximation to Moreau envelopes and vice versa, RAIRO - Operations Research, 47 (2013), 299 -310.
10Le Hai Yen, Hiriart-Urruty, Jean-Baptiste, A variational approach of the rank function, TOP. 21 (2013), 207 - 240.
11Le Hai Yen, Generalized subdifferentials of the rank function, Optim. Lett., 7 (2013), 731 - 743.
12Hiriart-Urruty Jean-Baptiste, Le Hai Yen, Convexifying the set of matrices of bounded rank: applications to the quasiconvexification and convexification of the rank function. Optim. Lett. 6 (2012), 841–849.
13Le Hai Yen, Confexifying the counting function on $\mathbb R^p for convexifying the rank function on $\mathcal M_{m,n} $\mathbb (R)$. [Convexifying the counting function on $\mathbb R^p for convexifying the rank function on $\mathcal M_{m,n} $\mathbb (R)$] J. Convex Anal. 19 (2012), 519–524.