Optimal parameters related with continuity properties of the multilinear fractional integral operator between Lebesgue and Lipschitz spaces

We deal with the boundedness of multilinear fractional integral operator $$I_{\gamma ,m}$$ from a product weighted Lebesgue spaces into adequate Lipschitz spaces. Our results generalize some previous estimates not only for linear case but also unweighted problem in context. characterize classes weights which described above holds and show optimal range parameters involved. The optimality is understood sense that defining corresponding belong to certain region. further exhibit examples class cover mentioned area.