English

Fractional relaxation and fractional oscillation models involving Erdelyi-Kober integrals

Numerical Analysis 2015-04-29 v1 Classical Physics

Abstract

We consider fractional relaxation and fractional oscillation equations involving Erdelyi-Kober integrals. In terms of Riemann-Liouville integrals, the equations we analyze can be understood as equations with time-varying coefficients. Replacing Riemann-Liouville integrals with Erdelyi-Kober-type integrals in certain fractional oscillation models, we obtain some more general integro-differential equations. The corresponding Cauchy-type problems can be solved numerically, and, in some cases analytically, in terms of Saigo-Kilbas Mittag-Leffler functions. The numerical results are obtained by a treatment similar to that developed by K. Diethelm and N.J. Ford to solve the Bagley-Torvik equation. Novel results about the numerical approach to the fractional damped oscillator equation with time-varying coefficients are also presented.

Keywords

Cite

@article{arxiv.1504.07568,
  title  = {Fractional relaxation and fractional oscillation models involving Erdelyi-Kober integrals},
  author = {M. Concezzi and R. Garra and R. Spigler},
  journal= {arXiv preprint arXiv:1504.07568},
  year   = {2015}
}