La presque-périodicité et les coalgèbres injectives
Left thickness, left amenability and extreme left amenability.
Lie algebras of a class of top spaces.
Lie Semialgebras are Real Phenomena.
Lie theory for semigroups.
Limit Measures on Compact Semitopological Semigroups.
Linear equations in the Stone-Čech compactification of .
Locally compact bisimple inverse semigroups.
Longer chains of idempotents in βG
Given idempotents e and f in a semigroup, e ≤ f if and only if e = fe = ef. We show that if G is a countable discrete group, p is a right cancelable element of G* = βG∖G, and λ is a countable ordinal, then there is a strictly decreasing chain of idempotents in , the smallest compact subsemigroup of G* with p as a member. We also show that if S is any infinite subsemigroup of a countable group, then any nonminimal idempotent in S* is the largest element of such a strictly decreasing chain of idempotents....
Lorentzian Cones in Real Lie Algebras.