Necessary and sufficient conditions for homotopy classification by cohomology and homotopy homomorphisms

Sternstein, Martin

doi:10.1090/S0002-9939-1972-0296942-3

Necessary and sufficient conditions for homotopy classification by cohomology and homotopy homomorphisms

Author: Martin Sternstein
Journal: Proc. Amer. Math. Soc. 34 (1972), 250-256
MSC: Primary 55D15
DOI: https://doi.org/10.1090/S0002-9939-1972-0296942-3
MathSciNet review: 0296942
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Abstract: Using obstruction theory tools to a pair of spaces two invariants are defined whose vanishing is a necessary and sufficient condition for homotopy classification of certain maps between these spaces by the induced cohomology and homotopy homomorphisms respectively.

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