... surface waves Three-phase-lag model Fractional derivative Higher-order heat conduction Deanship of Graduate Studies and Scientific Research DGSSR-2025-FC-01066. This work was funded by the Deanship of Graduate Studies and Scientific Research at Jouf University under grant No. DGSSR-2025...

...Chandra Sekhar Mahato; Siddhartha Biswas Purpose This paper is concerned with the study of the propagation of Rayleigh waves in a homogeneous isotropic, generalized thermoelastic medium with mass diffusion and double porosity structure using the theoretical framework of three-phase-lag model...

...) From (1) and (2) in (3) and using the summation convection, we note that the third equation of motion in (3) is identically satisfied and the first two equations become (Othman et al., 2013 , 2017): Green-Naghdi theory Gravity Two-temperature Fiber-reinforced Three-phase-lag model...