SK1 von Algebren über vollständig diskret bewerteten Körpern und Galoiskohomologie abelscher Körpererweiterungen.
is not boundedly generated by elementary matrices: explicit proof.
SL2 actions and cohomology of Schubert varieties
Slices étales
Smooth components of Springer fibers
This article studies components of Springer fibers for that are associated to closed orbits of on the flag variety of . These components occur in any Springer fiber. In contrast to the case of arbitrary components, these components are smooth varieties. Using results of Barchini and Zierau we show these components are iterated bundles and are stable under the action of a maximal torus of . We prove that if is a line bundle on the flag variety associated to a dominant weight, then the higher...
SO(2) invariants of a set of 2 x 2 matrices.
Solution of the congruence subgroup problem for and
Solvable subgroups of p-solvable semilinear groups.
Some Examples of Rigid Representations
*Research partially supported by INTAS grant 97-1644.Consider the Deligne-Simpson problem: give necessary and sufficient conditions for the choice of the conjugacy classes Cj ⊂ GL(n,C) (resp. cj ⊂ gl(n,C)) so that there exist irreducible (p+1)-tuples of matrices Mj ∈ Cj (resp. Aj ∈ cj) satisfying the equality M1 . . .Mp+1 = I (resp. A1+. . .+Ap+1 = 0). The matrices Mj and Aj are interpreted as monodromy operators and as matrices-residua of fuchsian systems on Riemann’s sphere. We give new examples...
Some finiteness properties of adele groups over number fields
Some Generalized Characters of Finite Chevalley Groups.
Some groups whose reduced -algebra is simple
Some local-global principles in the arithmetic of algebraic groups over real function fields.
Some model theory of simple algebraic groups over algebraically closed fields
Some Remarks on Invariant Means.
Some Remarks on Sylow Subgroups of General Linear Groups.
Sous-groupes compacts maximaux des groupes semi-simples -adiques
Sous-groupes conjugués d'un groupe linéaire
On démontre qu’un homomorphisme d’un sous-groupe de dans ce dernier est déterminé à une conjugaison près par son caractère si satisfait à certaines conditions. C’est le cas par exemple d’un sous-groupe discret uniforme de .
Sous-groupes finis des groupes de Lie
Sous-groupes -loxodromiques
On considère une extension finie de , avec un nombre premier, un sous-groupe d’indice fini de et le groupe . Nous montrons que admet un sous-groupe -Zariski-dense dont toutes les matrices ont leur spectre inclus dans si et seulement si soit est dans le sous-groupe , soit n’est pas congru à 2 modulo 4.