Title: Weakly differentiable mappings and their compactness properties Bingwu Wang (Eastern Michigan University, USA) In this talk we explore the generalized sequential normal compactness of weakly differentiable mappings in variational analysis. We present complete characterizations of these compactness properties of such mappings between general Banach spaces, as well as calculus rules of sequential normal compactness involving this kind of mappings. The talk is based on the joint work of B. Wang, X. Yang, and P. Long.