Two remarks on the homology of group extensions
نویسندگان
چکیده
منابع مشابه
Perfect Radicals and Homology of Group Extensions
A group epimorphism Q: G+ Q preserves perfect radicals if $PG = PQ, where PC, PQ is maximal perfect in G, Q respectively. The following two questions are considered. Question 1. If P,,(B) acts trivially on H,(F; E), does the tibration F + Es B then have ~,(P)(P~,(E)) = Pm,(B)? Question 2. If f: X + Y is a map of spaces which induces an isomorphism of homology groups, is rr,(X) * rr,( Y) n,( Y)/...
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15 صفحه اولextensions of some polynomial inequalities to the polar derivative
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ژورنال
عنوان ژورنال: Journal of the Australian Mathematical Society
سال: 1974
ISSN: 0004-9735
DOI: 10.1017/s1446788700017109