Kolmogorov type inequalities for Hadamard fractional derivatives of functions defined on half-line, and their applications

V.F. Babenko (Oles Honchar Dnipropetrovsk National University), https://orcid.org/0000-0001-6677-1914
N.V. Parfinovich (Oles Honchar Dnipropetrovsk National University)
A.A. Semirenko (Oles Honchar Dnipropetrovsk National University)

Abstract


For the norms of fractional Hadamard derivatives of functions defined on the half-line, the sharp Kolmogorov-type inequalities are obtained. Applications of these inequalities are given.

Keywords


fractional derivative; sharp inequality; norm; function

References



Arestov V.V. "Approximation of unbounded operators by the bounded ones and related extremum problems", Uspekhi matem. nauk, 1996; 51(6): pp. 88-124.

Arestov V.V., Gabushin V.N. "The best approximation of unbounded operators by the bounded ones", Izv. VUZov. Matem., 1995; 11: pp. 42-63.

Babenko V.F., Korneichuk N.P., Kofanov V.A., Pichugov S.A. Inequalities for derivatives and their applications, Naukova dumka, 2003.

Babenko V.F., Parfinovich N.V. "On inequalities of Kolmogorov type for Hadamard fractional derivatives of functions defined on half-line", Res. Math., 2009; 17(6/1): pp. 31-35.

Babenko V.F., Parfinovich N.V. "Sharp inequalities of Kolmogorov type for Hadamard fractional derivatives of functions defined on half-line", Res. Math., 2010; 18(6/1): pp. 38-48.

Babenko V.F., Churilova M.S. "On inequalities of Kolmogorov type for fractional derivatives", Res. Math., 2001; 6: pp. 16-20.

Babenko V.F., Churilova M.S. "Estimates for norms of fractional derivatives by integral moduli of continuity and their applications", Ukrainian Math. J., 2011; 63(9): pp. 1155-1168.

Motornyi V.P., Babenko V.F., Dovgoshej A.A., Kuznetsova O.I. Approximation theory and Fourier analysis, 2010.

Samko S.G., Kilbas A.A., Marichev O.I. Integrals and derivatives of fractional order and their applications, 1987.

Stechkin S.B. "The best approximation of linear operators", Matem. zametki, 1967; 1(2): pp. 137-148.




DOI: https://doi.org/10.15421/241207

  

Refbacks

  • There are currently no refbacks.


Copyright (c) 2012 V.F. Babenko, N.V. Parfinovich, A.A. Semirenko

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.


Registered in

More►


ISSN (Online): 2664-5009
ISSN (Print): 2664-4991
DNU