Vitali Vougalter, Vitaly Volpert Existence of stationary solutions for some systems of integro-differential equations with superdiffusion (273K, pdf) ABSTRACT. In the article we establish the existence of solutions of a system of integro-differential equations arising in population dynamics in the case of anomalous diffusion. The proof of existence of solutions is based on a fixed point technique. Solvability conditions for elliptic operators without Fredholm property in unbounded domains are being used.