Retraction notice to: ``A proof of Nirenberg conjecture on expansive mappings in Hilbert spaces

DOI10.1016/J.JMAA.2021.125836zbMath1476.46076OpenAlexW3216078518WikidataQ123219824 ScholiaQ123219824MaRDI QIDQ2059986

Teffera M. Asfaw

Publication date: 13 December 2021

Published in: Journal of Mathematical Analysis and Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.jmaa.2021.125836

Mathematics Subject Classification ID

Contraction-type mappings, nonexpansive mappings, (A)-proper mappings, etc. (47H09) Continuous and differentiable maps in nonlinear functional analysis (46T20)

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