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Nichtlineare Operatoren. (Operatori neliniari.). (Romanian) Zbl 0275.47031
Bucuresti: Editura Academiei Republicii Socialiste Romania. 283 p. Lei 11.50 (1974).

MSC:
47Hxx Nonlinear operators and their properties
35R20 Operator partial differential equations (= PDEs on finite-dimensional spaces for abstract space valued functions)
47H05 Monotone operators and generalizations
55M25 Degree, winding number
54H25 Fixed-point and coincidence theorems (topological aspects)