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Abstract
We investigate the group of automorphisms Aut(ℚ G) of a rational group algebra ℚ G of a finite metacyclic group G by first describing the simple components of the Wedderburn decomposition of ℚ G and then investigating when two of these simple components are isomorphic.
ACKNOWLEDGMENT
The second and third authors have been partially supported by the D.G.I. of Spain and Fundación Séneca of Murcia.
Notes
Communicated by M. Ferrero.