The connected components on the projective line over a ring.
The connection between a (3,2)-semigroup automaton and a semigroup automaton
The connections between continued fraction representations of units and certain Hecke groups.
The Connes-Kasparov conjecture for almost connected groups and for linear -adic groups
Let G be a locally compact group with cocompact connected component. We prove that the assembly map from the topological K-theory of G to the K-theory of the reduced C*-algebra of G is an isomorphism. The same is shown for the groups of k-rational points of any linear algebraic group over a local field k of characteristic zero.
The construction of -solvable Abelian groups
The construction of orthogonal k-skeins and latin k-cubes.
The construction of semigroups from groups and semilattices
The converse of Schur's Lemma in group rings
In this paper, we study the structure of group rings by means of endomorphism rings of their modules. The main tools used here, are the subrings fixed by automorphisms and the converse of Schur's lemma. Some results are obtained on fixed subrings and on primary decomposition of group rings.
The Conway-Norton algebras for ?(6,3), ?(7,3), F'24, and their full automorphism groups.
The co-rank conjecture for 3-manifold groups.
The core congruence on a monoid.
The Core-Free Groups of Sylow-2-type M24.
The Coxeter group .
The cyclic homology of the group rings.
The cyclic subgroup separability of certain HNN extensions.
The -property of linear and unitary groups.
The decomposition numbers of Hecke algebras of type F4 with unequal parameters.
The Decomposition numbers of the Hecke algebra of type F4.
The Decomposition of Tensors over Fields of Prime Characteristic.
The defect groups of a clique, p-solvable groups, and Alperin's conjecture.