Autor(es):
Vieira, Nelson ; Rodrigues, M. Manuela ; Ferreira, Milton
Data: 2021
Identificador Persistente: http://hdl.handle.net/10400.8/7512
Origem: IC-online
Projeto/bolsa:
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB/04106/2020/PT;
Assunto(s): Time-fractional telegraph equation; Distributed order; Laplace, Fourier and Mellin transforms; Fox H-functions; Fractional moments; Tauberian theorems
Descrição
In this work, the Cauchy problem for the time-fractional telegraph equation of distributed order in Rn is considered. By employing the technique of the Fourier, Laplace, and Mellin transforms, a representation of the fundamental solution of this equation in terms of convolutions involving the Fox H-function is obtained. Some particular choices of the density functions in the form of elementary functions are studied. Fractional moments of the fundamental solution are computed in the Laplace domain. Finally, by application of the Tauberian theorems we study the asymptotic behaviour of the second-order moment (variance) in the time domain.