Characterisations of extremly amenable semigroups.
نویسندگان
چکیده
منابع مشابه
A CHARACTERIZATION OF EXTREMELY AMENABLE SEMIGROUPS
Let S be a discrete semigroup, m (S) the space of all bounded real functions on S with the usualsupremum norm. Let Acm (S) be a uniformly closed left invariant subalgebra of m (S) with 1 c A. We say that A is extremely left amenable if there isamultiplicative left invariant meanon A. Let P = {h ?A: h =|g-1,g | forsome g ?A, s ?S}. It isshown that . A is extremely left amenable if and only ...
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ژورنال
عنوان ژورنال: MATHEMATICA SCANDINAVICA
سال: 1981
ISSN: 1903-1807,0025-5521
DOI: 10.7146/math.scand.a-11903