Warfield invariants in abelian group rings.
Danchev, Peter V.
Extracta Mathematicae, Tome 20 (2005), p. 233-241 / Harvested from Biblioteca Digital de Matemáticas
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Let R be a perfect commutative unital ring without zero divisors of char(R) = p and let G be a multiplicative abelian group. Then the Warfield p-invariants of the normed unit group V (RG) are computed only in terms of R and G. These cardinal-to-ordinal functions, combined with the Ulm-Kaplansky p-invariants, completely determine the structure of V (RG) whenever G is a Warfield p-mixed group.

Publié le : 2005-01-01
DMLE-ID : 4321 
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     title = {Warfield invariants in abelian group rings.},
     journal = {Extracta Mathematicae},
     volume = {20},
     year = {2005},
     pages = {233-241},
     zbl = {1117.16022},
     mrnumber = {MR2243340},
     language = {en},
     url = {http://dml.mathdoc.fr/item/urn:eudml:doc:41839}
}

Danchev, Peter V. Warfield invariants in abelian group rings.. Extracta Mathematicae, Tome 20 (2005) pp. 233-241. http://gdmltest.u-ga.fr/item/urn:eudml:doc:41839/