Fixed Point Theory, Variational Analysis, and Optimization not only covers three vital branches of nonlinear analysis fixed point theory, variational inequalities, and vector optimization but also explains the connections between them, enabling the study of a general form of variational inequality problems related to the optimality conditions involving differentiable or directionally differentiable functions. This essential reference supplies both an introduction to the field and a guideline to the literature, progressing from basic concepts to the latest developments....