We characterize the commutative locally multiplicative convex
(l.m.c.) algebras in terms of the spectral states. We also give a
characterization of spectral states in terms of commutative semisimple
l.m.c. algebras. Further, with the help of radicals of l.m.c. algebras we
give a necessary and a sufficient condition for an algebra to be commutative
modulo its radical.
Keywords: Spectral states, probability
measure, l.m.c. algebra, commutative modulo.