Inequality problems of quasi-hemivariational type involving set-valued operators and a nonlinear term. - Nicusor Costea; Vicentiu D. Radulescu (J. Glob. Optim., 2012)

Variational-Like Inequality Problems Involving Set-Valued Maps and Generalized Monotonicity. - Nicusor Costea; Daniel Alexandru Ion; Cezar Lupu (J. Optim. Theory Appl., 2012)

Antiplane shear deformation of piezoelectric bodies in contact with a conductive support. - Ionica Andrei; Nicusor Costea; Andaluzia Matei (J. Glob. Optim., 2013)

Multiple critical points for non-differentiable parametrized functionals and applications to differential inclusions. - Nicusor Costea; Csaba Varga (J. Glob. Optim., 2013)

Coupled systems of nonlinear variational inequalities and applications. - Nicusor Costea (Commun. Nonlinear Sci. Numer. Simul., 2023)

Existence results for variational-hemivariational inequality systems with nonlinear couplings. - Yunru Bai; Nicusor Costea; Shengda Zeng (Commun. Nonlinear Sci. Numer. Simul., 2024)

Weak solvability for a class of double phase variable exponents inclusion problems. - Jinxia Cen; Nicusor Costea (Commun. Nonlinear Sci. Numer. Simul., 2025)