1. Introduction. The question of partition of energy in the asymptotic form was first investigated by Lax and Phillips [1] and Brodsky [2], Further, this problem has been studied by Goldstein [3,4], In his elegant analysis of the abstract wave equation, Goldstein applies the semigroup theory in order to obtain an equipartition theorem stating that the difference of the kinetic energy and the potential energy vanishes as the time approaches infinity. By means of the Paley-Wiener theorem, Duffin [5] has shown that if a solution of the classical wave equation has compact support, then after a finite time the kinetic energy of the wave is constant and equals the potential energy.Levine [6] later treated an abstract version of Goldstein's approach by use of the Lagrange identity method. His result represents a simplified proof that asymptotic equipartition occurs between the Cesaro means of the kinetic and potential energies, a fact first demonstrated by Goldstein [4], The asymptotic equipartition between the mean kinetic and strain energies within the context of linear elastodynamics was established by