In this paper, we continue the study of the algebraic core spectrum and the analytic core spectrum of an operator T on the complex Banach space X: sigma alc(T) = {lambda is an element of C : C(lambda I - T) = {0}} and sigma-(ac)(T) = {lambda is an element of C : K(lambda I - T) = {0}} where C(T) and K(T) are respectively the algebraic core and the analytic core for T. We shall be concerned with the relations between sigma(ac)(.) (sigma(alc)(.)) and different classical parts of spectrum: the point spectrum, the approximate point spectrum, the surjectivity spectrum and the Kato spectrum. Moreover, some applications are given.