id: 05710100 dt: j an: 05710100 au: Edalat, Abbas ti: A differential operator and weak topology for Lipschitz maps. so: Topology Appl. 157, No. 9, 1629-1650 (2010). py: 2010 pu: Elsevier Science B.V. (North-Holland), Amsterdam la: EN cc: ut: domain theory; Clarke gradient; weakest topology; second order functionals; Hausdorff metric; fundamental theorem of calculus ci: li: doi:10.1016/j.topol.2010.03.003 ab: One of the first main results of this paper asserts that the Scott topology induces a topology for real-valued Lipschitz maps on Banach spaces. This is usually referred to as the $L$-topology and is the weakest topology with respect to which the $L$-derivative operator, as a second order functional which maps the space of Lipschitz functions into the function space of non-empty weak* compact and convex valued maps equipped with the Scott topology, is continuous. For finite dimensional Euclidean spaces, where the $L$-derivative and the Clarke gradient coincide, the author provides a simple characterization of the basic open subsets of the $L$-topology. The present paper also develops a fundamental theorem of calculus of second order in finite dimensions. A key ingredient in the proof is that the continuous integral operator from the continuous Scott domain of non-empty convex and compact valued functions to the continuous Scott domain of ties is inverse to the continuous operator induced by the $L$-derivative. In the last part of this paper it is shown that in dimension one the $L$-derivative operator is a computable functional. rv: Teodora-Liliana Rădulescu (Craiova)