Error estimates for quadrature rules based on the Arnoldi process. - Hanan Almutairi; Miroslav S. Pranic; Lothar Reichel (J. Comput. Appl. Math., 2024)

New error estimates for the conjugate gradient method. - Hanan Almutairi; Gérard Meurant; Lothar Reichel; Miodrag M. Spalevic (J. Comput. Appl. Math., 2025)