Caractères venant des ...-normalisateurs d'une groupe fini résoluble.
Centralizers of gap groups
A finite group G is called a gap group if there exists an ℝG-module which has no large isotropy groups except at zero and satisfies the gap condition. The gap condition facilitates the process of equivariant surgery. Many groups are gap groups and also many groups are not. In this paper, we clarify the relation between a gap group and the structures of its centralizers. We show that a nonsolvable group which has a normal, odd prime power index proper subgroup is a gap group.
Certains invariants entiers d' un p-bloc.
Character induction in p-groups.
Character Ramification and M-Groups.
Characterizing projective general unitary groups by their complex group algebras
Let be a finite group. Let be the first column of the ordinary character table of . We will show that if , then . As a consequence, we show that the projective general unitary groups are uniquely determined by the structure of their complex group algebras.
Characters and systems of subgroups.
Characters and the generalized Fitting subgroup
Characters of finite groups and divisibility problems. (Charaktere endlicher Gruppen und Teilbarkeitsfragen.)
Characters of Groups with Normal Extra Special Subgroups.
Chern classes of group representations over a number field
Classification of solvable groups possessing a unique nonlinear non-faithful irreducible character
In this note, we study finite groups possessing exactly one nonlinear non-faithful irreducible character. Our main result is to classify solvable groups that satisfy this property. Also, we give examples to show that these groups need not to be solvable in general.
Clifford theory for group-graded rings.
Clifford theory for group-graded rings. II.
Computation of classes of conjugate elements and of characters of arbitrary finite groups
Constituents of the product of characters in odd order groups.
Constructing irreducible representations of Weyl groups.
Constructing rational representations of finite groups.
Contraction of excess fibres between the McKay correspondences in dimensions two and three
The quotient singularities of dimensions two and three obtained from polyhedral groups and the corresponding binary polyhedral groups admit natural resolutions of singularities as Hilbert schemes of regular orbits whose exceptional fibres over the origin reveal similar properties. We construct a morphism between these two resolutions, contracting exactly the excess part of the exceptional fibre. This construction is motivated by the study of some pencils of K3 surfaces appearing as minimal resolutions...
Correction to the paper "Splitting fields and group characters".