Minimax Theorems and Qualitative Properties of the Solutions of Hemivariational Inequalities

The book explores boundary value problems (BVPs) categorized into two classes: variational inequalities linked to convex energy functions and hemivariational inequalities associated with nonconvex energy functions. While the former has been extensively studied for over forty years, the latter has gained traction since 1981, yielding significant results in both mathematics and applied sciences, particularly engineering. The rapid development in these areas has led to innovative mathematical methods and the resolution of numerous open questions, enhancing the understanding of complex problems.