Mathematical models in many fields of the physical sciences involve nonlocal terms which are formally similar to convolution integrals. We show that it is possible to approximate a particular class of such integrals, which by themselves are not convolutions, as a linear combination of convolution integrals, allowing for their efficient numerical computation as an O(NlogN) process. (c) 2005 Elsevier Inc. All rights reserved.
A fast algorithm for convolution integrals with space and time variant kernels / Gilad, Erez; von Hardenberg, Jost. - In: JOURNAL OF COMPUTATIONAL PHYSICS. - ISSN 0021-9991. - 216:1(2006), pp. 326-336.
|Titolo:||A fast algorithm for convolution integrals with space and time variant kernels|
|Data di pubblicazione:||2006|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.jcp.2005.12.003|
|Appare nelle tipologie:||1.1 Articolo in rivista|