%A J.-P. Aubin %A H. Frankowska %A C. Olech %J SIAM Journal on Control and Optimization %T Controllability of Convex Processes %X The purpose of this paper is to provide several characterizations of controllability of differential inclusions whose right-hand sides are convex processes. Convex processes are the set-valued maps whose graphs are convex cones; they are the set-valued analogues of linear operators. Such differential inclusions include linear systems where the controls range over a convex cone (and not only a vector space). The characteristic properties are couched in terms of invariant cones by convex processes, or eigenvalues of convex processes, or a rank condition. We also show that controllability is equivalent to observability of the adjoint inclusion. %N 6 %P 1192-1211 %V 24 %D 1986 %R 10.1137/0324072 %L iiasa13647