Geodesic
A generalized Riemann–Liouville operator and some of its
Izvestiya. Mathematics, Tome 2 (1968) no. 5, pp. 1027-1063 
M. M. Dzhrbashyan. A generalized Riemann–Liouville operator and some of its. Izvestiya. Mathematics, Tome 2 (1968) no. 5, pp. 1027-1063. http://geodesic.mathdoc.fr/item/IM2_1968_2_5_a5/
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Voir la notice de l'article provenant de la source Math-Net.Ru

In this paper we formulate operators which constitute an essential generalization of the Riemann–Liouville fractional integro-differentiation operator. With the aid of these operators fundamentally new analogues of the classical formulas of Cauchy, Schwarz, and Poisson for the representation of analytic and harmonic functions in the interior of a circle are established. These formulas enable us to give a complete structural representation for the broad classes of harmonic and analytic functions associated with the generalized operators. Finally, in this paper we also establish sufficient conditions for the solvability of the Hausdorff and Stieltjes moment problems for some general families of sequences of positive numbers.

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