Vitali Vougalter, Vitaly Volpert On the existence of stationary solutions for some systems of non-Fredholm integro-differential equations with superdiffusion (210K, pdf) ABSTRACT. We establish the existence of stationary solutions for certain systems of reaction-diffusion equations with superdiffusion. The corresponding elliptic problem involves the operators with or without Fredholm property. The fixed point technique in appropriate H^2 spaces of vector functions is employed.