Title
On the stability of a modified Nyström method for Mellin convolution equations in weighted spaces.
Abstract
This paper deals with the numerical solution of second kind integral equations with fixed singularities of Mellin convolution type. The main difficulty in solving such equations is the proof of the stability of the chosen numerical method, being the noncompactness of the Mellin integral operator the chief theoretical barrier. Here, we propose a Nyström method suitably modified in order to achieve the theoretical stability under proper assumptions on the Mellin kernel. We also provide an error estimate in weighted uniform norm and prove the well-conditioning of the involved linear systems. Some numerical tests which confirm the efficiency of the method are shown.
Year
DOI
Venue
2018
10.1007/s11075-017-0453-3
Numerical Algorithms
Keywords
DocType
Volume
Mellin kernel, Mellin convolution equations, Nyström method, Gaussian rule, 65R20, 45E99
Journal
79
Issue
ISSN
Citations 
2
1017-1398
0
PageRank 
References 
Authors
0.34
4
2
Name
Order
Citations
PageRank
M. C. De Bonis1175.60
C. Laurita2113.29