Finite Groups over Arithmetical Rings an
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F. Van Oystaeyen; A.E. Zalesski Δ
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Article
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1999
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Elsevier Science
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English
β 142 KB
Given the ring of integers R of an algebraic number field K, for which natural Ε½ . number n is there a finite group G ; GL n, R such that RG, the R-span of G, Ε½ . Ε½ . Ε½ . coincides with M n, R , the ring of n = n -matrices over R? Given G ; GL n, R Ε½ . we show that RG s M n, R if and only if the Bra