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Compactness as a type of injectivity

✍ Scribed by Wing-Man Chan; Denis Higgs; Bill Lenihan

Publisher
Elsevier Science
Year
1974
Weight
587 KB
Volume
4
Category
Article
ISSN
0016-660X

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✦ Synopsis

It is shown that the compact topallqkal spaces are precisely the injective spaces with respect to a certain class of continuous mappings, namely, t?he class of embeddings of discrete spaces into the associated ultraspaces. Some remarlcs relat& to this fact are made.

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