Research Papers

    Publications in journals
  1. X. Chen, K. Hashimoto; Verification methods for nonlinear equations with saddle point functions, Journal of Computational and Applied Mathematics 159 [1] (Oct. 2003), 13-24.
    Proceedings: 6th Japan-China Joint Seminar on Numerical Mathematics; In Search for the Frontier of Computational and Applied Mathematics toward the 21st Century, Tsukuba, Japan, 5-9 August 2002. Edited by M. Natori, Z.-C. Shi, T. Kitagawa.
  2. X. Chen, K. Hashimoto; Numerical validation of solutions of saddle point matrix equations, Numerical Linear Algebra with Applications 10 [7] (Nov. 2003), 661-672.
    Special Issue: Dedicated to the 70th birthday of Ivo Marek. Issue Edited by Owe Axelsson.
  3. M.T. Nakao, K. Nagatou, K. Hashimoto; Numerical enclosure of solutions for two dimensional driven cavity problems, (327.pdf p.1-10)
    Proceedings: European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2004), Jyvaskyla, Finland, 24-28 July 2004. Edited by P. Neittaanmaki, T. Rossi, K. Majava, O. Pironneau (eds.) and O. Nevanlinna, R. Rannacher (assoc. eds.).
  4. K. Hashimoto, R. Abe, M.T. Nakao, Y. Watanabe; A numerical verification method for solutions of singularly perturbed problems with nonlinearity, Japan Journal of Industrial and Applied Mathematics 22 [1] (Feb. 2005), 111-131.
  5. M.T. Nakao, K. Hashimoto, Y. Watanabe; A numerical method to verify the invertibility of linear elliptic operators with applications to nonlinear problems, Computing 75 [1] (July 2005), 1-14.
    Special issue: GAMM - Workshop on Guaranteed Error-bounds for the Solution of Nonlinear Problems in Applied Mathematics. Guest Editor: Jurgen Herzberger.
  6. K. Hashimoto, K. Kobayashi, M.T. Nakao; Numerical verification methods for solutions of the free boundary problem, Numerical Functional Analysis and Optimization 26 [4-5] (Nov. 2005), 523-542.
  7. K. Hashimoto, K. Nagatou, M.T. Nakao; A computational approach to constructive a priori error estimate for finite element approximations of bi-harmonic problems in nonconvex polygonal domains, Information 9 [4] (July 2006), 573-580.
  8. K. Nagatou, K. Hashimoto, M.T. Nakao; Numerical verification of stationary solutions for Navier-Stokes problems, Journal of Computational and Applied Mathematics 199 [2] (Feb. 2007), 445-451.
    Special issue: Scientific Computing, Computer Arithmetic, and Validated Numerics (SCAN 2004). Edited by G. Alefeld, M.T. Nakao and S.M. Rump.
  9. M.T. Nakao, K. Hashimoto, K. Kobayashi; Verified numerical computation of solutions for the stationary Navier-Stokes equation in nonconvex polygonal domains, Hokkaido Mathematical Journal 36 [4] (Nov. 2007), 777-799.
    Proceedings: The First China-Japan-Korea Joint Conference on Numerical Mathematics, Sapporo, Japan, 3-7 August 2006.
  10. M.T. Nakao, K. Hashimoto; Guaranteed error bounds for finite element approximations of noncoercive elliptic problems and their applications, Journal of Computational and Applied Mathematics 218 [1] (Aug. 2008), 106-115.
    Special Issue: Finite Element Methods in Engineering and Science (FEMTEC 2006). Edited by P. Solin.
  11. T. Kinoshita, K. Hashimoto, M.T. Nakao; On the L2 a priori error estimate to the finite element solution of elliptic problems with singular adjoint operator, Numerical Functional Analysis and Optimization 30 [3-4] (Mar. 2009), 289-305.
  12. M.T. Nakao, K. Hashimoto, K. Nagatou; A computational approach to constructive a priori and a posteriori error estimates for finite element approximations of bi-harmonic problems, GAKUTO International Series, Mathematical Sciences and Applications 28 (April 2008), 139-148.
    Proceedings: 4th JSIAM-SIMAI Seminar on Industrial and Applied Mathematics, Kanagawa, Japan, 26-28 May 2005.
  13. M.T. Nakao, K. Hashimoto; A numerical veri cation method for solutions of nonlinear parabolic problems, Journal of Math-for-industry 1 [2009A-9] (Apr. 2009), 69-72.
  14. 松尾智則, 増田隆, 橋本弘治, 川俣沙織, 橋本一雄; 入学前教育の取り組みと成果(基礎分野編)2012, 中村学園大学・中村学園大学短期大学部研究紀要 46 (2014-03), 215-220.
  15. 橋本弘治; 鞍点型問題に対する二重前処理法, 中村学園大学・中村学園大学短期大学部研究紀要 49 (2017-03), 187-192.
  16. K. Hashimoto, T. Kimura, T. Minamoto, M.T. Nakao; Constructive error analysis of a full-discrete finite element method for the heat equation, Japan Journal of Industrial and Applied Mathematics, 36[3] (Apr. 2019), 777-790.
  17. K. Hashimoto, T. Kinoshita, M.T. Nakao; Numerical verification of solutions for nonlinear parabolic problems, Numerical Functional Analysis and Optimization, 41[12] (Jun. 2020), 1495-1514.
  18. M. Mizuguchi, K. Sekine, K. Hashimoto, M.T. Nakao & S. Oishi; Rigorous numerical inclusion of the blow-up time for the Fujita-type equation, Japan Journal of Industrial and Applied Mathematics, 40[5] (Nov. 2022), 665-689.