IMAKURA Akira

Researcher's full information

Articles
  • Improving the convergence behaviour of BiCGSTAB by applying D-norm minimization
    Su Lijiong; Imakura Akira; Tadano Hiroto; Sakurai Tetsuya
    JSIAM Letters/7/pp.37-40, 2015-05
  • An Efficient Algorithm to Construct an Orthonormal Basis for the Extended Krylov Subspace
    Imakura Akira
    EAST ASIAN JOURNAL ON APPLIED MATHEMATICS/4(3)/pp.267-282, 2014-08
  • A block Arnoldi-type contour integral spectral projection method for solving generalized eigenvalue problems
    Imakura Akira; Du Lei; Sakurai Tetsuya
    Applied Mathematics Letters/32/pp.22-27, 2014-06
  • Improvement of the accuracy of the approximate solution of the Block BiCR method
    Tadano Hiroto; Ishikawa Youichi; Imakura Akira
    JSIAM Letters/6(0)/pp.61-64, 2014
  • Development of the Block BiCGSTAB() method for solving linear systems with multiple right hand sides
    Saito Shusaku; Tadano Hiroto; Imakura Akira
    JSIAM Letters/6(0)/pp.65-68, 2014
  • A filtering technique for the temporally reduced matrix of the Wilson fermion determinant
    Futamura Yasunori; Hashimoto Shoji; Imakura Akira; Nagata...
    Proceedings of Proceedings of The 32nd International Symposium on Lattice Field Theory (LATTICE2014), 2014
  • A Parameter Estimation for the Preconditioning Using Sparse Direct Solvers for Krylov Subspace Methods Based on the Minimal Residual Approach(Application)
    山崎 育朗; 今倉 暁; 多田野 寛人; 櫻井 鉄也
    Transactions of the Japan Society for Industrial and Applied Mathematics/23(3)/pp.381-404, 2013-09
  • A parameter optimization technique for a weighted stationary iterative-type preconditioner and its efficiency on the supernova simulation (Fundamental Technologies for the Next-Generation Computational Science)
    今倉 暁; 櫻井 鉄也; 住吉 光介; 松古 英夫
    RIMS Kokyuroku/1848/pp.15-24, 2013-08
  • An Efficient Variant of the Restarted Shifted GMRES Method for Solving Shifted Linear Systems
    Imakura Akira; Tomohiro Sogabe; Shao-Liang Zhang
    Journal of Mathematical Research with Applications/33(2)/pp.127-141, 2013
  • A Weighted Block GMRES method for solving linear systems with multiple right-hand sides
    Imakura Akira; Lei Du; Hiroto Tadano
    JSIAM Letters/5/pp.65-68, 2013-03
  • A Parameter Optimization Technique for a Weighted Jacobi-Type Preconditioner
    今倉 暁; 櫻井 鉄也; 住吉 光介; 松古 栄夫
    JSIAM Letters/4/pp.41-44, 2012-12
  • On Convergence Behavior of the GMRES(m) Method with the Deflation-Type Restart and the Look-Back-Type Restart
    今倉 暁; 楊 済栄; 曽我部 知広; 張 紹良
    Transactions of the Japan Society for Industrial and Applied Mathematics/22(3)/pp.117-141, 2012-09
  • On Restarted Shifted Krylov Subspace Methods for Solving Shifted Linear Systems
    今倉 暁; 曽我部 知広; 張 紹良
    RIMS Kokyuroku/1791(0)/pp.47-56, 2012-04
  • An auto-tuning technique of the weighed Jacobi-type iteration used for preconditioners of Krylov subspace methods
    Imakura Akira; Sakurai Tetsuya; Sumiyoshi Kohsuke; Matsuf...
    Proceedings of IEEE 6th International Symposium on Embedded Multicore SoCs (MCSoC-12)/pp.183-190, 2012
  • A Look-Back GMRES(m) Method for Solving Nonsymmetric Linear Systems
    今倉 暁; 曽我部知広; 張紹良
    Transactions of the Japan Society for Industrial and Applied Mathematics/22(1)/pp.1-21, 2012-03
  • An Efficient Variant of the GMRES(m) Method Based on the Error Equations
    今倉 暁; 曽我部 知広; 張 紹良
    East Asian Journal on Applied Mathematics/2(1)/pp.19-32, 2012-02
  • On the Restart of the GMRES(m) Method
    今倉 暁; 曽我部知広; 張紹良
    Transactions of the Japan Society for Industrial and Applied Mathematics/19(4)/pp.551-564, 2009-12
  • An Implicit Wavelet Sparse Approximate Inverse Preconditioner Using Block Finger Pattern
    今倉 暁; 曽我部 知広; 張 紹良
    Numerical Linear Algebra with Applications/16(11-12)/pp.915-928, 2009-11
  • A Large-Grained Parallel Solver for Linear Simultaneous Ordinary Differential Equations based on Matrix Exponential and its Evaluation
    今倉 暁; 楊 済栄; 曽我部 知広; 張 紹良
    Transactions of the Japan Society for Industrial and Applied Mathematics/19(3)/pp.293-312, 2009-09
  • A modification of implicit Wavelet sparse approximate inverse preconditioner based on a block finger pattern
    Imakura Akira; Sogabe Tomohiro; Zhang Shao-Liang
    Proceedings of Frontiers of Computational Science 2008, Y. Kaneda, M. Sasai and K. Tachibana (eds.)/pp.271-278, 2008
  • An Efficient Implicit Wavelet Sparse Approximate Inverse Preconditioner Using Blocked Finger Pattern
    今倉 暁; 曽我部知広; 張紹良
    日本応用数理学会論文誌/17(4)/pp.523-542, 2007-12