Proceedings of the Royal Society of Edinburgh Section A Mathematics · 1976 · 108 citations · 4 references
Natural SciencesMathematicsDifferential EquationsBoundary-value ProblemsPartial Differential EquationsElliptic Boundary-value ProblemsWeak Solutions
Synopsis By a new method it is proved that a non-linear elliptic boundary value problem of rather general type admits a weak solution lying between a given weak lower solution ϕ and a given weak upper solution ψ≧ϕ
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Topological Methods in the Theory of Nonlinear Integral Equations.
E. H. Rothe, M. A. Krasnosel’skii, A. H. Armstrong et al. · American Mathematical Monthly · 1968 · 2K citations