The paper deals with evolution problems involving time derivatives of fractional order α, with 1 < α ≤ 2. The solutions are expressed in terms of operator Mittag-Leffler functions. The action of such operator functions is approximated by rational Krylov methods whose convergence features are investigated.
Titolo: | Shift-and-invert Krylov methods for time-fractional wave equations |
Autori: | |
Data di pubblicazione: | 2014 |
Rivista: | |
Abstract: | The paper deals with evolution problems involving time derivatives of fractional order α, with 1 < α ≤ 2. The solutions are expressed in terms of operator Mittag-Leffler functions. The action of such operator functions is approximated by rational Krylov methods whose convergence features are investigated. |
Handle: | http://hdl.handle.net/11368/2808525 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1080/01630563.2014.908209 |
Appare nelle tipologie: | 1.1 Articolo in Rivista |
File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.