18 citations · 84 across the 39 of their papers we have counts for
5 papers · 2 filters
A counterexample to Feit's Problem VIII on decomposition numbers
Gabriel Navarro, Benjamin Sambale
We find a counterexample to Feit's Problem VIII on the bound of decomposition numbers. This also answers a question raised by T. Holm and W. Willems.
On defects of characters and decomposition numbers
Gunter Malle, Gabriel Navarro, Benjamin Sambale
We propose upper bounds for the number of modular constituents of the restriction modulo of a complex irreducible character of a finite group, and for its decomposition numbers…
Certain irreducible characters over a normal subgroup
Gabriel Navarro, Noelia Rizo
We extend the Howlett-Isaacs theorem on the solvability of groups of central type taking into account actions by automorphisms. Then we study certain induced characters whose const…
Defect zero characters predicted by local structure
Gunter Malle, Gabriel Navarro, Geoffrey R. Robinson
Let be a finite group and let be a prime. Assume that there exists a prime dividing which does not divide the order of any -local subgroup of . If is $p…
Restriction of odd degree characters and natural correspondences
Eugenio Giannelli, Alexander Kleshchev, Gabriel Navarro +1
Let be an odd prime power, , and let denote a maximal parabolic subgroup of with Levi subgroup . We restrict the odd-degree irr…