On the topology of retracts

DOI10.2307/1969394zbMath0029.42301OpenAlexW2313086726MaRDI QIDQ2647523

No author found.

Publication date: 1947

Published in: Annals of Mathematics. Second Series (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2307/1969394

zbMATH Keywords

Topology

Mathematics Subject Classification ID

Retraction (54C15) Absolute neighborhood extensor, absolute extensor, absolute neighborhood retract (ANR), absolute retract spaces (general properties) (54C55)

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A topological approach to the existence of solutions for nonlinear differential equations with piecewise constant argument ⋮ Strictly purely correct, torsion-free Abelian groups.

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