This is the 12-th workshop devoted to well-posed optimization problem and related topics. Previous workshops were organized in Milano (1987), Sofia (1989), Santa Margherita Ligure (1991), Sozopol (1993 and 1997), Luminy (1995 and 2003), Gargnano (1999), Warsaw (2001), Borovets (2005), Alicante (2007).
Well-posedness of (scalar and vector) optimization problems is a basic feature of such problems, being related in a deep way to their mathematical structure and the performance of numerical methods. Starting with the fundamental work by Tikhonov and the adaptation of the ideas of Hadamard to the optimization setting, first studies were directed to perturbed optimization and regularization methods. The field has evolved in recent years relating to variational analysis, stability of variational inequalities and game theory, metric regularity, approximate solutions in equilibrium models and game theory, condition number theory, stochastic optimization (to name a few).