RUS  ENG
Full version
JOURNALS // Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya // Archive

Izv. Akad. Nauk SSSR Ser. Mat., 1975 Volume 39, Issue 1, Pages 69–122 (Mi im1815)

This article is cited in 8 papers

Classes of formulas and expansions of Taylor–Maclaurin type associated with differential operators of fractional order

M. M. Dzhrbashyan, B. A. Saakyan


Abstract: This article contains new applications of functions of Mittag–Leffler type $E_\rho(z,\mu)=\sum_0^\infty\Gamma^{-1}\bigl(\mu+\frac k\rho\bigr)z^k$ in mathematical analysis. We construct an apparatus of formulas and expansions of Taylor–Maclaurin type in systems generated by a system of functions of the form $\bigl\{E_\rho\bigl(-\lambda_nx^{1/\rho},\frac1\rho\bigr)\bigr\}_0^\infty$ and an arbitrary sequence $\{\lambda_n\}_0^\infty$ ($0=\lambda_0\leqslant\lambda_n\leqslant\lambda_{n+1}$). In addition, in the article we introduce essentially new classes $\langle\rho,\lambda_n\rangle$ of absolutely monotone functions and establish theorems on their representations.
Bibliography: 9 items.

UDC: 517.5

MSC: Primary 26A33; Secondary 26A93, 26A48, 30A16, 30A78

Received: 22.11.1973


 English version:
Mathematics of the USSR-Izvestiya, 1975, 9:1, 63–112

Bibliographic databases:


© Steklov Math. Inst. of RAS, 2026