This is an announcement for the paper "Covering dimension and nonlinear equations" by Biagio Ricceri.
Abstract: Theorem: Let X and Y be two Banach spaces, Phi: X to Y a continuous, linear, surjective operator, and Psi: X to Y a completely continuous operator with bounded range. Then, one has dim{x in X : Phi(x)=Psi(x)} >= dim(Phi^{-1}(0)). Here dim denotes the covering dimension.
Archive classification: Functional Analysis
Mathematics Subject Classification: 47J05, 47H10
Citation: RIMS Kokyuroku 1031, 97-100 (1998)
Remarks: 3 pages
The source file(s), paam-15.tex: 7189 bytes, is(are) stored in gzipped form as 0412563.gz with size 3kb. The corresponding postcript file has gzipped size 26kb.
Submitted from: elliott@mail.mathatlas.yorku.ca
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