Spaces defined by sequences

Berner, Andrew J.

doi:10.1090/S0002-9939-1976-0394573-1

Spaces defined by sequences
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Proc. Amer. Math. Soc. 55 (1976), 193-200 Request permission

Abstract:

The biquotient, countably biquotient, hereditarily quotient, and quotient images of $q$-spaces are classified. Also, the quotient images of paracompact $M$-spaces, and the quotient images of $M$-spaces are classified without any separation axioms. New definitions are given for certain familiar classes of spaces to give the definitions more uniformity.

References

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Additional Information

Journal: Proc. Amer. Math. Soc. 55 (1976), 193-200
DOI: https://doi.org/10.1090/S0002-9939-1976-0394573-1
MathSciNet review: 0394573