The onto C0(Y ). We prove that into isometrise and disjointness preserving linear maps from are weighted composition operators. Next, we introduc and study disjointness preserving linear maps from C00(X) into a C00(X). A linear map T defined from a subalgebra A of C00(X) into a subalgebra B of C00(Y ) is said to be separating or disjointness preserving if fg ? 0 implise TfTg ? 0 for all f, g in A. Lastly, We give a full description of disjointness preserving Fredholm linear operators T from C0(X) into C0(Y ), and show that T is continuous if either Y contains no isolated point or T has closed rang.
