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math.RT2010
Irreducible characters taking root of unity values on p-singular elements
Gabriel Navarro, Geoffrey R. Robinson
In this paper we study finite p-solvable groups having irreducible complex characters chi in Irr(G) which take roots of unity values on the p-singular elements of G.
math.RT2010
The valued Gabriel quiver of a wedge product and semiprime coalgebras
Gabriel Navarro
We make a first approach to the representation theory of the wedge product of coalgebras by means of the description of its valued Gabriel quiver. Then we define semiprime coalgebr…