Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-26T01:57:24.706Z Has data issue: false hasContentIssue false

On regularization of right hand sides of differential relations

Published online by Cambridge University Press:  14 November 2011

Jaroslav Kurzweil
Affiliation:
Ceskoslovenska Akademie Ved, Matematicky Ustav, 11567 Praha 1, Czechoslovakia
Jiří Jarník
Affiliation:
Ceskoslovenska Akademie Ved, Matematicky Ustav, 11567 Praha 1, Czechoslovakia

Synopsis

Let the values of F be convex compact subsets of Rn and let F be upper semicontinuous with respect to x. There are two ways known of replacing F by a more regular map so that the set of solutions of (2) remains unchanged. We prove that both ways lead to the same more regular map and extend the results to the case where Rn is replaced by a separable Banach space.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1984

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1Jarník, J. and Kurzweil, J.. On conditions on right hand sides of differential relations. Časopis Pěst. Mat. 102 (1977), 334349.CrossRefGoogle Scholar
2Rzeźuchowski, T.. Scorza-Dragoni type theorem for upper semicontinuous multivalued functions. Bull. Acad. Polon. Sci. Sér. Sci. Math. 28 (1980), 6166.Google Scholar
3Castaing, C. and Valadier, M.. Convex analysis and measurable multifunctions. Lecture Notes in Mathematics 580 (Berlin: Springer, 1977).Google Scholar
4Scorza-Dragoni, G.. Un teorema sulle funzioni continue rispetto ad una e misurabili rispetto ad un'altra variabile. Rend. Sem. Mat. Padova 17 (1948), 102106.Google Scholar
5Tolstonogov, A. A.. On differential inclusions in Banach space with nonconvex right hand sides. Existence of solutions (Russian). Sibirsk. Mat. Ž. 22 (1981), 182198.Google Scholar
6Tolstonogov, A. A.. On the structure of the sets of solutions of differential inclusions in a Banach space (Russian). Mat. Sb. 118 (160) (1982), 318.Google Scholar
7Klee, V. and Olech, C.. Characterizations of a class of convex sets. Math. Scand. 20 (1967), 290296.CrossRefGoogle Scholar