Two-Level Least Squares Methods in Krylov Subspaces

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

4 Цитирования (Scopus)


Two-level least squares acceleration approaches are applied to the Chebyshev acceleration method and the restarted conjugate residual method in solving systems of linear algebraic equations with sparse unsymmetric coefficient matrices arising from finite volume or finite element approximations of boundary-value problems on irregular grids. Application of the proposed idea to other iterative restarted processes also is considered. The efficiency of the algorithms suggested is investigated numerically on a set of model Dirichlet problems for the convection-diffusion equation.

Язык оригиналаанглийский
Страницы (с-по)892-902
Число страниц11
ЖурналJournal of Mathematical Sciences (United States)
Номер выпуска6
СостояниеОпубликовано - 1 авг 2018


Подробные сведения о темах исследования «Two-Level Least Squares Methods in Krylov Subspaces». Вместе они формируют уникальный семантический отпечаток (fingerprint).