I Nonlinear Analysis.- Discrete Approximation Processes of King#x2019;s Type.- Isometrics in Non-Archimedean Strictly Convex and Strictly 2-Convex 2-Normed Spaces.- Fixed Points and Generalized Stability for -Additive Mappings of Isac-Rassias Type.- A Remark on W#x002A;-Tensor Products of W#x002A;-Algebras.- The Perturbed Median Principle for Integral Inequalities with Applications.- Stability of a Mixed Type Additive, Quadratic, Cubic and Quartic Functional Equation.- -Aditive Mappings and Hyers#x2013;Ulam Stability.- The Stability and Asymptotic Behavior of Quadratic Mappings on Restricted Domains.- A Fixed Point Approach to the Stability of a Logarithmic Functional Equation.- Fixed Points and Stability of the Cauchy Functional Equation in Lie -Algebras.- Fixed Points and Stability of Functional Equations.- Compression#x2013;Expansion Critical Point Theorems in Conical Shells.- Gronwall Lemma Approach to the Hyers#x2013;Ulam#x2013;Rassias Stability of an Integral Equation.- Brezis-Browder Principles and Applications.- II Variational Problems.- A Generalized Quasi-Equilibrium Problem.- Double-Layer and Hybrid Dynamics of Equilibrium Problems: Applications to Markets of Environmental Products.- A Panoramic View on Projected Dynamical Systems.- Foundations of Set-Semidefinite Optimization.- On the Envelope of a Variational Inequality.- On the Nonlinear Generalized Ordered Complementarity Problem.- Optimality Conditions for Several Types of Efficient Solutions of Set-Valued Optimization Problems.- Mean Value Theorems for the Scalar Derivative and Applications.- Application of a Vector-Valued Ekeland-Type Variational Principle for Deriving Optimality Conditions.- Nonlinear Variational Methods for Estimating Effective Properties of Multiscale Materials.- On Common Linear/Quadratic Lyapunov Functions for Switched Linear Systems.- Nonlinear Problems in Mathematical Programming and Optimal Control.- On Variational Inequalities Involving Mappings of Type (S).- Completely Generalized Co-complementarity Problems Involving -Relaxed Accretive Operators with Fuzzy Mappings.- Generating Eigenvalue Bounds Using Optimization.