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On compactification of mappings

Published online by Cambridge University Press:  20 January 2009

P. A. Firby
Affiliation:
THe University, Exeter
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If X and Y are Tychonoff spaces then the continuous function f mapping X onto Y is said to be compact (perfect, or proper) if it is closed and point inverses are compact. If h is a continuous function mapping X onto Y then by a compactification of h we mean a pair (X*, h*) where X* is Tychonoff and contains X as a dense subspace, and where h*: X*→Y is a compact extension of h. The idea of a mapping compactification first appeared in (7). In (1) it was shown that any compactification of X determines a compactification of h, and that any compactification of h can be determined in this way. This idea was then developed in (2) and (3).

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 1974

References

REFERENCES

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