Love wave in porous layer under initial stress over heterogeneous elastic half-space under gravity and initial stress

In the present paper, effect of initial stresses and gravity on propagation Love waves has been studied in porous layer surface over a heterogeneous half-space. We have considered two types boundary free surfaces: (a) rigid (b) traction boundary. The investigated under assumed media both cases discusses comparison study cases. dispersion equations phase velocities obtained numerical calculations done presented graphically. This medium reveals that presence stress half-space absence layer, displacement velocity is more than