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(1985)Let R and S be two rings with identity elements and let l : R (>) S be a ring homomorphism preserving their identity elements. Then any Smodule W can be regarded as an Rmodule W(,R). Also, for any right Rmodule ...
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(1984)A PeifferWhitehead word system W, or generalized group presentation, consists of generators for a free group and words of various orders n (GREATERTHEQ) 2 representing elements of the free group (n = 2), a free crossed ...
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(1991)We obtain the following generalization of the Kummer congruence: $$G\sb{c}(j,\chi,n) = \left\lbrack{p\sp{1}\Delta\sb{\rm c}\atop j}\right\rbrack {1\over n}(1  \chi\omega\sp{n}(p)\ p\sp{n1}) B\sb{n,\chi\omega\sp{n}} ...
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(1961)
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(1966)
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(1975)
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(1983)Given an integrable Gstructure P and a closed subgroup H of G, we assign to each Hreduction of P a singular set in the base manifold. Our first main result is that generically, this singular set is a finite disjoint union ...
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(1983)We study the (narrow) genus group of an abelian extension of number fields using a four term exact sequence of abelian groups derived from work of Frohlich. There are two main results. First, if L/K is a cyclic lextension, ...
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Now showing items 229248 of 756