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zbMath0519.54035MaRDI QIDQ3668483

Publication date: 1983

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

classical Lyusternik theorem concerning relative extrema covering principle for mappings between metric spaces Ptak's induction theorem

Mathematics Subject Classification ID

Equations involving nonlinear operators (general) (47J05) Fixed-point and coincidence theorems (topological aspects) (54H25) Optimality conditions for problems in abstract spaces (49K27)

Related Items (1)

Subtraction theorems and approximate openness for multifunctions: Topological and infinitesimal viewpoints

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