Abstract
In this paper, we develop the sufficient criteria for the oscillation of all solutions to the following fractional functional partial differential equation involving Riemann- Liouville fractional derivative equipped with initial and Neumann, Dirichlet and Robin boundary conditions: where 0 < a < 1, (x, t). x (0,8), is a bounded domain in Euclidean n- dimensional space Rn with a piecewise smooth boundary. ; C. C((0,8), (-8, 0]), is the Laplacian inRn, Pi. C(, [0,8)), R(x, t). C(G, (-8,8)), si. [0,8), i = 1, 2,... , n.