A note on Saalfrank’s generalizatio of absolute retract

Robinson, C. E.

doi:10.1090/S0002-9939-1964-0159308-8

Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

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A note on Saalfrank’s generalizatio of absolute retract
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by C. E. Robinson

Proc. Amer. Math. Soc. 15 (1964), 308-310

DOI: https://doi.org/10.1090/S0002-9939-1964-0159308-8

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References

Richard Arens, Extension of functions on fully normal spaces, Pacific J. Math. 2 (1952), 11–22. MR 49543, DOI 10.2140/pjm.1952.2.11
Olof Hanner, Retraction and extension of mappings of metric and non-metric spaces, Ark. Mat. 2 (1952), 315–360. MR 50875, DOI 10.1007/BF02591501

Erweiterung einer stetigen Abbildung

C. W. Saalfrank, A generalization of the concept of absolute retract, Proc. Amer. Math. Soc. 12 (1961), 374–378. MR 125558, DOI 10.1090/S0002-9939-1961-0125558-7