57 citations · 145 across the 18 of their papers we have counts for
3 papers · 2 filters
Anti-Gauss cubature rules with applications to Fredholm integral equations on the square
Patricia Diaz de Alba, Luisa Fermo, Giuseppe Rodriguez
The purpose of this paper is to develop the anti-Gauss cubature rule for approximating integrals defined on the square whose integrand function may have algebraic singularities at…
On the error of best polynomial approximation of composite functions
Luisa Fermo, Concetta Laurita, Maria Grazia Russo
The purpose of the paper is to provide a characterization of the error of the best polynomial approximation of composite functions in weighted spaces. Such a characterization is es…
Averaged Nyström interpolants for the solution of Fredholm integral equations of the second kind
Luisa Fermo, Lothar Reichel, Giuseppe Rodriguez +1
Fredholm integral equations of the second kind that are defined on a finite or infinite interval arise in many applications. This paper discusses Nyström methods based on Gauss qua…