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An existence theorem for ordinary differential equations in Banach spaces

Published online by Cambridge University Press:  17 April 2009

Moses A. Boudourides
Affiliation:
Department of Mathematics, Democritus University of Thrace, Xanthi, Greece.
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Abstract

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The Cauchy problem x′ = f(t, x), x(0) = x0, is considered in a non-reflexive Banach space E, where f is weakly continuous. A local existence theorem is proved using the measure of weak noncompactness.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1980

References

[1]Bownds, J.M. and Diaz, J.B., “Euler-Cauchy polygons and the local existence of solutions to abstract ordinary differential equations”, Funkcial. Ekvac. 15 (1972), 193207.Google Scholar
[2]Browder, Felix E., “Non-linear equations of evolution”, Ann. of Math. (2) 80 (1964), 485523.CrossRefGoogle Scholar
[3]Cramer, Evin, Lakshmikantham, V. and Mitchell, A.R., “On the existence of weak solutions of differential equations in nonreflexive Banach spaces”, Nonlinear Anal. 2 (1978), 169177.CrossRefGoogle Scholar
[4]De Blasi, Francesco S., “On a property of the unit sphere in a Banach space”, Bull. Math. Soc. Sci. Math. R.S. Roumaine (N.S.) 21 (69) (1977), no. 3–4, 259262.Google Scholar
[5]Deimling, Klaus, Ordinary differential equations in Banach spaces (Lecture Notes in Mathematics, 596. Springer-Verlag, Berlin, Heidelberg, New York, 1977).CrossRefGoogle Scholar
[6]Dunford, Nelson and Schwartz, Jacob J., Linear operators. Part I: General theory (Pure and Applied Mathematics, 7. Interscience, New York, London, 1958).Google Scholar
[7]Hille, Einar, Phillips, Ralph S., Functional analysis and semi-groups, revised edition (American Mathematical Society Colloquium Publications, 31. American Mathematical Society, Providence, Rhode Island, 1957).Google Scholar
[8]Kato, Shiego, “On existence and uniqueness conditions for nonlinear ordinary differential equations in Banach spaces”, Funkcial. Ekvac. 19 (1976), 239245.Google Scholar
[9]Knight, William J., “Counterexample to a theorem on differential equations in Hilbert space”, Proc. Amer. Math. Soc. 51 (1975), 378380.Google Scholar
[10]Szép, A., “Existence theorem for weak solutions of ordinary-differential equations in reflexive Banach spaces”, Stadia Sci. Math. Hungar. 6 (1971), 197203.Google Scholar
[11]Szufla, S., “Some remarks on ordinary differential equations in Banach spaces”, Bull. Acad. Polon. Sci. Sér. Sci. Math. Astron. Phys. 16 (1968), 795800.Google Scholar