Universidad de Murcia

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20022011

most citedFlavour physics of leptons and dipole moments

378 citations

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4 papers · 1 filter

math.RT2008

Representation dimension of extensions of hereditary algebras

Manuel Saorin

We show that if H is a hereditary finite dimensional algebra, M is a finitely generated H-module and B is a semisimple subalgebra of the endomorphism algebra of M, then the represe…

math.RT2007

The gap between the Schur group and the subgroup generated by cyclic cyclotomic algebras

Allen Herman, Gabriela Olteanu, Angel del Rio

Let $K$ be an abelian extension of the rationals. Let $S (K)$ be the Schur group of $K$ and let $C C (K)$ be the subgroup of $S (K)$ generated by classes containing cyclic cyclotomic a…

math.RT2007

The Schur group of an abelian number field

Allen Herman, Gabriela Olteanu, Angel del Rio

We characterize the maximum $r$ -local index of a Schur algebra over an abelian number field $K$ in terms of global information determined by the field $K$ , for $r$ an arbitrary rat…

math.RT2007

Group algebras of Kleinian type and groups of units

Gabriela Olteanu, Angel del Rio

The algebras of Kleinian type are finite dimensional semisimple rational algebras $A$ such that the group of units of an order in $A$ is commensurable with a direct product of Klei…