The existence of an intimate relationship between the theory of ordinary differential equations ~ = f (t, x , u(t)) involving more or less arbitrary "control" functions u and the theory of contingentâ€¦ (More)

In this paper we continue the study, initiated in [1], of generalized differential equations and their solution families. Our principal concern is an investigation of some implications of Hermes'â€¦ (More)

1. In connection with a study of the minimum miss distance problem, a theorem [ 1, Theorem 4] asserting existence of an optimal control for this problem has been proved. The fundamental hypothesis ofâ€¦ (More)