A Topological Transversality Theorem For Multi-Valued Maps In Locally Convex Spaces With Applications To Neutral Equations
Canadian journal of mathematics, Tome 44 (1992) no. 5, pp. 1003-1013

Voir la notice de l'article provenant de la source Cambridge University Press

The concept of essential map and topological transversality due to A. Granas is extended to multi-valued maps in locally convex spaces and it is next applied to prove the solvability of boundary value problems for certain neutral functional differential equations. In order to achieve a required compactness property, the weak topology in a Sobolev space is considered. The topological tool established in the first part of the paper allows to avoid some obstacles which are encountered when trying to use standard degree-theoretical arguments.
DOI : 10.4153/CJM-1992-061-5
Mots-clés : 34H10, 34K10, Topological transversality in locally convex space, multi-valued maps, neutral equations, boundary value problems.
Kaczynski, Tomasz; Wu, Jianhong. A Topological Transversality Theorem For Multi-Valued Maps In Locally Convex Spaces With Applications To Neutral Equations. Canadian journal of mathematics, Tome 44 (1992) no. 5, pp. 1003-1013. doi: 10.4153/CJM-1992-061-5
@article{10_4153_CJM_1992_061_5,
     author = {Kaczynski, Tomasz and Wu, Jianhong},
     title = {A {Topological} {Transversality} {Theorem} {For} {Multi-Valued} {Maps} {In} {Locally} {Convex} {Spaces} {With} {Applications} {To} {Neutral} {Equations}},
     journal = {Canadian journal of mathematics},
     pages = {1003--1013},
     year = {1992},
     volume = {44},
     number = {5},
     doi = {10.4153/CJM-1992-061-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1992-061-5/}
}
TY  - JOUR
AU  - Kaczynski, Tomasz
AU  - Wu, Jianhong
TI  - A Topological Transversality Theorem For Multi-Valued Maps In Locally Convex Spaces With Applications To Neutral Equations
JO  - Canadian journal of mathematics
PY  - 1992
SP  - 1003
EP  - 1013
VL  - 44
IS  - 5
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1992-061-5/
DO  - 10.4153/CJM-1992-061-5
ID  - 10_4153_CJM_1992_061_5
ER  - 
%0 Journal Article
%A Kaczynski, Tomasz
%A Wu, Jianhong
%T A Topological Transversality Theorem For Multi-Valued Maps In Locally Convex Spaces With Applications To Neutral Equations
%J Canadian journal of mathematics
%D 1992
%P 1003-1013
%V 44
%N 5
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1992-061-5/
%R 10.4153/CJM-1992-061-5
%F 10_4153_CJM_1992_061_5

[I] [I] Driver, R.D., Existence and continuous dependence of solutions of a neutralfunctional differential equation, Arch. Rat. Mech. Anal. 19(1965), 149–166. Google Scholar

[2] [2] Dugundji, J. and Granas, A., Fixed Point Theory, 1, Warszawa, 1982. Google Scholar

[3] [3] Erbe, L.H., Krawcewicz, W. and Wu, J., Topological transversality in boundary value problems of neutral equations with applications to lossless transmission line theory, Bull. Soc. Math. Belgique (A), to appear. Google Scholar

[4] [4] Hartman, P., Ordinary Differential Equations, New York, 1964. Google Scholar

[5] [5] Kaczynski, T. and Krawcewicz, W., Solvability of boundary value problems for the inclusion utt -uxx ∈ g(t, x, u) via the theory of multi-valued A-proper maps, Zeitschrift für Analysis and ihre Anwendungen, Bd. (4), 7(1988), 337–346. Google Scholar

[6] [6] Ma, T., Topological degrees of set-valued compact fields in locally convex spaces, Dissertationes Math. 92, 1972. Google Scholar

[7] [7] Melvin, W.R., Topologies for neutral functional differential equations, J. Differential Equations 13(1973), 24–31. Google Scholar

[8] [8] Petryshyn, W.V. and Fitzpatrik, P.M., Degree theory, fixed point theorems and mapping theorems for multivalued noncompactmappings, Trans. Amer. Math. Soc. 194(1974), 1–25. Google Scholar

[9] [9] Pliś, A., Measurable orientorfields, Bull. Acad. Polon. Sci. (8) 13(1965), 565–569. Google Scholar

[10] [10] Pruszko, T., Topological degree methods in multivalued boundary value problems, Nonlinear Analysis, TMA (9) 5(1981), 953–973. Google Scholar

[11] [11] Tarafdar, E. and Deo, S.K., On the existence of solutions of the equation Lx G Nx and a coincidence degree theory, J. Austral. Math. Soc. (A) 28(1979), 139–173. Google Scholar

Cité par Sources :