On the weak semiderivative of mappings and the mapping equations

zbMath0753.47028MaRDI QIDQ1191690

Shulang Yang

Publication date: 27 September 1992

Published in: Chinese Science Bulletin (Search for Journal in Brave)

zbMATH Keywords

positive solutions1-set contractionweak semiderivatives of nonlinear operators

Mathematics Subject Classification ID

Equations involving nonlinear operators (general) (47J05) Contraction-type mappings, nonexpansive mappings, (A)-proper mappings, etc. (47H09) Derivatives of functions in infinite-dimensional spaces (46G05)

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