Vitali Vougalter, Vitaly Volpert Solvability of some integro-differential equations with anomalous diffusion (306K, pdf) ABSTRACT. The paper is devoted to the existence of solutions of an integro-differential equation in the case of anomalous diffusion with the Laplace operator in a fractional power. The proof of existence of solutions relies on a fixed point technique. Solvability conditions for elliptic operators without Fredholm property in unbounded domains are used.