The Banach space L(p)(X,mu), for X a compact Hausdorff measure space,
is considered as a special kind of quasi -algebra (called CQ*-algebra
) over the C-algebra C(X) of continuous functions on X. It is shown t
hat, for p greater than or equal to 2, (L(p)(X, mu), C(X)) is -semisi
mple (in a generalized sense). Some consequences of this fact are deri
ved. (C) 1996 Academic Press, Inc.