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Topological degree and A-proper operators

✍ Scribed by J.R.L. Webb


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
891 KB
Volume
84
Category
Article
ISSN
0024-3795

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Upper and Lower Solutions and Topologica
✍ Irena RachΕ―nkovΓ‘ πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 533 KB

This paper deals with second order nonlinear boundary value problems. We suppose the existence of upper and lower solutions of the problems which are well ordered, i.e., the lower solution is less than the upper one, and we also consider the case of upper and lower solutions having the opposite orde