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Modern approach to the theory of topological characteristics of nonlinear operators. I. (English. Russian original) Zbl 0666.47037

Global analysis - studies and applications III, Lect. Notes Math. 1334, 199-220 (1988); translation from Geometriya i Teoriya Osobennostej v Nelinejnykh Uravneniyakh, Nov. Global’nom Anal. 1987, 24-46 (1987).
For the entire collection see Zbl 0658.00011. See the review in Zbl 0654.47047.

MSC:

47J05 Equations involving nonlinear operators (general)
55M25 Degree, winding number