An irreducible semigroup of idempotents
Tom 125 / 1997
Studia Mathematica 125 (1997), 97-99
DOI: 10.4064/sm-125-1-97-99
Streszczenie
We construct a semigroup of bounded idempotents with no nontrivial invariant closed subspace. This answers a question which was open for some time.
