
On oid-semigroups and universal semigroups “at infinity”
... be given a semigroup structure. Indeed the operation on S extends uniquely to βS, so that S contained in it’s topological center. Pym [4] introduced the concept of an oid. Oids are important because nearly all semigroups contains them and all oids are oid-isomorphic [6]. Through out this paper we wi ...
... be given a semigroup structure. Indeed the operation on S extends uniquely to βS, so that S contained in it’s topological center. Pym [4] introduced the concept of an oid. Oids are important because nearly all semigroups contains them and all oids are oid-isomorphic [6]. Through out this paper we wi ...
Hecke algebras and characters of parabolic type of finite
... Gurtis-Fossum [6]. Further discussion of these characters depends on the concept of a system {G{q)} of finite groups with (B, N)-pairs, all with the same Goxeter system, and parametrized by some infinite set of prime powers {^}. All the Chevalley groups and twisted types belong to such systems. Gene ...
... Gurtis-Fossum [6]. Further discussion of these characters depends on the concept of a system {G{q)} of finite groups with (B, N)-pairs, all with the same Goxeter system, and parametrized by some infinite set of prime powers {^}. All the Chevalley groups and twisted types belong to such systems. Gene ...