Alg�ebres de Banach Algebra Banach algebras C*-alg�ebres C*-algebras Faisceaux fibr�es (Math�ematiques) Fiber bundles (Mathematics) Groupes localement compacts Lie groups Locally compact groups MATHEMATICS Repr�esentations des alg�ebres Representations of algebras Algèbres d'opérateurs Functional analysis Linear Operator algebras Representations of Lie and linear algebraic groups over real fields: analytic methods Topological groups, Lie groups $K$-theory $K$-theory and operator algebras Algebraic cycles Algebraic geometry Analyse fonctionnelle Banach, Alg�ebres de Classifications of $C^*$-algebras Complex spaces with a group of automorphisms Cycles algébriques Cycles and subschemes Deformations of analytic structures