On some nonmonotone subdifferential boundary conditions in elastostatics

Generalized gradients and applications

Frank H. Clarke · Transactions of the American Mathematical Society · 1975 · 1.2K citations

Natural Sciences, Mathematics, Derivatives +10

Variational methods for non-differentiable functionals and their applications to partial differential equations

Kung-Ching Chang · Journal of Mathematical Analysis and Applications · 1981 · 874 citations

Natural Sciences, Mathematics, Differential Equations +13

Nonlinear mappings of monotone type in Banach spaces

Felix E. Browder · Journal of Functional Analysis · 1972 · 296 citations

Natural Sciences, Mathematics, Dynamical Systems +7

Nonconvex energy functions. Hemivariational inequalities and substationarity principles

P. D. Panagiotopoulos · Acta Mechanica · 1983 · 241 citations

Natural Sciences, Electrical Engineering, Optimization +8

Generalized gradients of Lipschitz functionals

Frank H. Clarke · Advances in Mathematics · 1981 · 185 citations

Natural Sciences, Mathematics, Optimization +9