Transactions Issue Mathematics, Azerbaijan National Academy of Sciences, vol.43, no.4, pp.65-71, 2023 (Scopus)
In this work we study the connection of the Riemann-Liouville fractional integral with the nonlinear fractional integro-differential equation. In particular, we proved the boundedness of Riemann-Liouville fractional integral on Lebesgue spaces and give the interval for the best constant.