Cacti, braids and complex polynomials.
Calculating the genus of a direct product of certain nilpotent groups.
The Mislin genus G(N) of a finitely generated nilpotent group N with finite commutator subgroup admits an abelian group structure. If N satisfies some additional conditions -we say that N belongs to N1- we know exactly the structure of G(N). Considering a direct product N1 x ... x Nk of groups in N1 takes us virtually always out of N1. We here calculate the Mislin genus of such a direct product.
Cambrian fans
For a finite Coxeter group and a Coxeter element of ; the -Cambrian fan is a coarsening of the fan defined by the reflecting hyperplanes of . Its maximal cones are naturally indexed by the -sortable elements of . The main result of this paper is that the known bijection cl between -sortable elements and -clusters induces a combinatorial isomorphism of fans. In particular, the -Cambrian fan is combinatorially isomorphic to the normal fan of the generalized associahedron for . The rays...
Cancellation of Abelian groups of finite rank modulo elementary equivalence.
Canonical bases for normal subgroups of finitely generated free groups with finite abelian factor groups.
Canonical representatives and equations in hyperbolic groups.
Cantor extension of a half lineary cyclically ordered group
Convergent and fundamental sequences are studied in a half linearly cyclically ordered group G with the abelian increasing part. The main result is the construction of the Cantor extension of G.
Cappi di Bruck e loro generalizzazioni
Caractérisation algébrique des groupes de type fini ayant un problème de mots résoluble (théorème de Boone-Higman, travaux de B. H. Neumann et MacIntyre)
Caractéristiques d'euler et groupes fondamentaux des variétés de dimension 4.
Carter subgroups and injectors in a class of locally finite groups
Catégorification des coefficients de la matrice de la représentation de Burau
Nous catégorifions explicitement les coefficients de la matrice de la représentation de Burau en utilisant des méthodes géométriques élémentaires. Nous montrons que cette catégorification est fidèle dans le sens où elle détecte la tresse triviale.
Categorification of the virtual braid groups
We extend Rouquier’s categorification of the braid groups by complexes of Soergel bimodules to the virtual braid groups.
CC-Groups with periodic central factor.
Cells and constructible representations in type .
Centralisateurs des éléments d'ordre fini dans le groupes de Greendlinger.
Centraliser dimension and universal classes of groups.
Centralizers of Involutions in Locally Finite-Simple Groups
Centralizers of semisimple subgroups in locally finite simple groups
Centre-by-metabelian groups with a condition on infinite subsets.