Three-Dimensional Finite Brick-Type Edge-Element Eddy Current Analysis Using Parallelized Linear-System Solvers. - Takeshi Iwashita; Takeshi Mifune; Ryo Sokabe; Masaaki Shimasaki (PARELEC, 2000)

A Parallel Algebraic Multigrid Preconditioner Using Algebraic Multicolor Ordering for Magnetic Finite Element Analyses. - Takeshi Mifune; N. Obata; Takeshi Iwashita; Masaaki Shimasaki (PARCO, 2005)

Large-scale time-harmonic electromagnetic field analysis using a multigrid solver on a distributed memory parallel computer. - Takeshi Iwashita; Yu Hirotani; Takeshi Mifune; Toshio Murayama; Hideki Ohtani (Parallel Comput., 2012)

Parallel Hierarchical Matrices with Adaptive Cross Approximation on Symmetric Multiprocessing Clusters. - Akihiro Ida; Takeshi Iwashita; Takeshi Mifune; Yasuhito Takahashi (J. Inf. Process., 2014)

Software Framework for Parallel BEM Analyses with H-matrices Using MPI and OpenMP. - Takeshi Iwashita; Akihiro Ida; Takeshi Mifune; Yasuhito Takahashi (ICCS, 2017)

Automatic mapping operator construction for subspace correction method to solve a series of linear systems. - Takeshi Iwashita; Shigeru Kawaguchi; Takeshi Mifune; Tetsuji Matsuo (JSIAM Lett., 2017)

Convergence Acceleration of Preconditioned CG Solver Based on Error Vector Sampling for a Sequence of Linear Systems. - Takeshi Iwashita; Kota Ikehara; Takeshi Fukaya; Takeshi Mifune (CoRR, 2022)

Convergence acceleration of preconditioned conjugate gradient solver based on error vector sampling for a sequence of linear systems. - Takeshi Iwashita; Kota Ikehara; Takeshi Fukaya; Takeshi Mifune (Numer. Linear Algebra Appl., 2023)