Quittner, Pavol Singular sets and number of solutions of nonlinear boundary value problems. (English) Zbl 0529.35027 Commentat. Math. Univ. Carol. 24, 371-385 (1983). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document MSC: 35J65 Nonlinear boundary value problems for linear elliptic equations 35P30 Nonlinear eigenvalue problems and nonlinear spectral theory for PDEs 35A05 General existence and uniqueness theorems (PDE) (MSC2000) 47A53 (Semi-) Fredholm operators; index theories 47B06 Riesz operators; eigenvalue distributions; approximation numbers, \(s\)-numbers, Kolmogorov numbers, entropy numbers, etc. of operators Keywords:singular sets; number of solutions; Dirichlet problem; Fredholm map of index zero; proper; coercive uniqueness; Leray-Schauder degree PDF BibTeX XML Cite \textit{P. Quittner}, Commentat. Math. Univ. Carol. 24, 371--385 (1983; Zbl 0529.35027) Full Text: EuDML OpenURL