1. Application of maximal monotone operator method for solving Hamilton–Jacobi–Bellman equation arising from optimal portfolio selection problem

   • Cyril Izuchukwu Udeani
   • Daniel Ševčovič

   Original Paper 11 May 2021 Pages: 693 - 713

   

2. A numerical method for Fredholm integral equations of the second kind by the IMT-type DE rules

   • Hidenori Ogata

   Original Paper 28 January 2021 Pages: 715 - 729

   

3. A posteriori verification for the sign-change structure of solutions of elliptic partial differential equations

   • Kazuaki Tanaka

   Original Paper Open access 27 January 2021 Pages: 731 - 756

   

4. Least upper bound of truncation error of low-rank matrix approximation algorithm using QR decomposition with pivoting

   • Haruka Kawamura
   • Reiji Suda

   Original Paper Open access 24 February 2021 Pages: 757 - 779

   

5. Krylov subspace methods for estimating operator-vector multiplications in Hilbert spaces

   • Yuka Hashimoto
   • Takashi Nodera

   Original Paper Open access 21 February 2021 Pages: 781 - 803

   

6. PRP-like algorithm for monotone operator equations

   • Auwal Bala Abubakar
   • Poom Kumam
   • Abdulkarim Hassan Ibrahim

   Original Paper 18 February 2021 Pages: 805 - 822

   

7. Computational complexity of three-dimensional discrete tomography with missing data

   • Kei Kimura
   • Takuya Kamehashi

   Original Paper 25 March 2021 Pages: 823 - 858

   

8. An improved preconditioner for \(2\times 2\) block linear system arising from complex linear system

   • Wen-Bin Bao

   Original Paper 22 March 2021 Pages: 859 - 875

   

9. Thirty traveling wave solutions to the systems of ion sound and Langmuir waves

   • Hong-Zhun Liu

   Original Paper 26 April 2021 Pages: 877 - 902

   

10. Numerical computation of blood flow for a patient-specific hemodialysis shunt model

    • Surabhi Rathore
    • Tomoki Uda
    • D. Srikanth

    Original Paper Open access 12 May 2021 Pages: 903 - 919

    

11. An adaptive and explicit fourth order Runge–Kutta–Fehlberg method coupled with compact finite differencing for pricing American put options

    • Chinonso Nwankwo
    • Weizhong Dai

    Original Paper 12 June 2021 Pages: 921 - 946

    

12. Asymptotic behavior for finite-time ruin probabilities in a generalized bidimensional risk model with subexponential claims

    • Fengyang Cheng
    • Dongya Cheng
    • Zhangting Chen

    Original Paper 11 June 2021 Pages: 947 - 963

13. A preconditioner based on a splitting-type iteration method for solving complex symmetric indefinite linear systems

    • Lu-Bin Cui
    • Xiao-Qing Zhang
    • Yu-Tao Zheng

    Original Paper 05 May 2021 Pages: 965 - 978

    

14. A variant of relaxed alternating positive semi-definite splitting preconditioner for double saddle point problems

    • Lingsheng Meng
    • Jun Li
    • Shu-Xin Miao

    Original Paper 21 April 2021 Pages: 979 - 998

    

15. Correction to: A variant of relaxed alternating positive semi-definite splitting preconditioner for double saddle point problems

    • Lingsheng Meng
    • Jun Li
    • Shu-Xin Miao

    Correction 18 May 2021 Pages: 999 - 999

16. A robust discontinuous Galerkin scheme on anisotropic meshes

    • Takahito Kashiwabara
    • Takuya Tsuchiya

    Original Paper Open access 18 May 2021 Pages: 1001 - 1022

    

17. A two-step iteration method for the horizontal nonlinear complementarity problem

    • Hua Zheng
    • Liang Luo
    • Shao-Yong Li

    Original Paper 13 April 2021 Pages: 1023 - 1036

18. Delay-induced blow-up in a planar oscillation model

    • Alexey Eremin
    • Emiko Ishiwata
    • Yukihiko Nakata

    Original Paper Open access 22 July 2021 Pages: 1037 - 1061

    

19. On an aggregate state-price deflator in a multi-period market model

    • Takashi Adachi

    Original Paper 19 June 2021 Pages: 1063 - 1074