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Group rings

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This two-volume graduate textbook gives a comprehensive, state-of-the-art account of describing large subgroups of the unit group of the integral group ring of a finite group and, more generally, of the unit group of an order in a finite dimensional semisimple rational algebra. Since the book is addressed to graduate students as well as young researchers, all required background on these diverse areas, both old and new, is included. Supporting problems illustrate the results and complete some of the proofs. Volume 1 contains all the details on describing generic constructions of units and the subgroup they generate. Volume 2 mainly is about structure theorems and geometric methods. Without being encyclopaedic, all main results and techniques used to achieve these results are included. Basic courses in group theory, ring theory and field theory are assumed as background.

Group rings. --- Rings (Algebra)

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Group rings --- Modules (Algebra) --- Non-Abelian groups

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Group theory --- Ordered algebraic structures --- 512.552.7 --- Semigroup and group rings --- Group rings. --- Ideals (Algebra) --- Ideals (Algebra). --- 512.552.7 Semigroup and group rings --- Algèbres associatives --- Algèbres associatives --- Représentations de groupes

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Ordered algebraic structures --- 512.54 --- Group rings --- #WWIS:ALTO --- Group theory --- Rings (Algebra) --- Groups. Group theory --- Group rings. --- 512.54 Groups. Group theory --- Groupes, Théorie des