پديدآورندگان :
Cheraghzadeh Taiebeh tcheraghzadeh@yahoo.com Department of Applied Mathematics, Faculty of Mathematical Science, Shahrekord University, Shahrekord, Iran. , Toutounian Faezeh toutouni@math.um.ac.ir Department of Applied Mathematics, Faculty of Mathematical Science, Ferdowsi University of Mashhad, Iran. , Khoshsiar Reza khoshsi.r@sku.ac.ir Department of Applied Mathematics, Faculty of Mathematical Science, Shahrekord University, Shahrekord, Iran.
چكيده فارسي :
One of the popular tensor iterative Krylov subspace methods is the CMRH method based on tensor format, called CMRH-BTF method. Due to the reduction of storage and computational costs, the CMRH-BTF method is used with restarting. A drawback of restarting is slowdown of the convergence. In this paper, we present a variant of the restarted CMRH-BTF (CMRH-BTF(m)) method with retaining some Krylov subspace information of the previous cycles. A numerical experiment demonstrates the effectiveness of this method.
