The effect of light refraction in a galaxy’s halo of dark matter, described by profiles of Navarro-Frenk-White and Burkert, was considered. Powers of the Chere
Whistler observations during nighttimes made at low latitude Indian ground stations Jammu (geomag. lat., 29°26'N;L = 1.17), Nainital (geomag. lat., 19&
This paper considers the long-time behavior for a system of coupled wave equations of higher-order Kirchhoff type with strong damping terms. Using the Hadamard