■ Papers, Proceedings
31. Koji Aoyama and Masashi Toyoda,
Fixed point theorem for a Meir-Keeler type mapping in a metric space with a transitive relation,
Transylvanian Journal of Mathematics and Mechanics 14 (2022), no. 1, 1--9.

30. Yasunori Kimura and Masashi Toyoda,
Fixed point theorem in ball spaces and Caristi's fixed point theorem,
Journal of Nonlinear and Convex Analysis 23 (2022), 185--189.

29. Koji Aoyama and Masashi Toyoda,
Approximation of zeros of an accretive operator and fixed points of nonexpansive mappings in a Banach space,
Linear and Nonlinear Analysis 6 (2020), No. 2, 303--313.

28. Masashi Toyoda and Toshikazu Watanabe,
Solutions for a fractional-order differential equation with boundary conditions of third order,
International Journal of Applied Mathematics, Vol. 33, No 3 (2020), 403--412.

27. Koji Aoyama and Masashi Toyoda,
Approximation of common fixed points of strongly nonexpansive sequences in a Banach space,
Journal of Fixed Point Theory and Applications, Vol.21, Issue 1 (2019), 21:35.

26. Masashi Toyoda and Toshikazu Watanabe,
Caccioppoli's fixed point theorem in the setting of metric spaces with a partial order,
Journal of Nonlinear and Convex Analysis, Vol.19, No.10 (2018), 1719--1723.

25. Masashi Toyoda and Toshikazu Watanabe,
Fixed point theorems for asymptotic mappings of a generalized contractive type in complete metric spaces,
Nihonkai Mathematical Journal, 29 (2018), 21--28.

24. Masashi Toyoda and Toshikazu Watanabe,
Note on solutions of boundary value problems involving a fractional differential equation,
Linear and Nonlinear Analysis, 3 (2017), 449--455.

23. Toshiharu Kawasaki and Masashi Toyoda,
Existence and uniqueness of solutions for a class of a singular fractional initial value problem,
Yokohama Mathematical Journal, 63 (2017), 41--57.

22. Koji Aoyama and Masashi Toyoda,
Approximation of zeros of accretive operators in a Banach space,
Israel Journal of Mathematics, 220 (2017), 803--816.

21. Masashi Toyoda and Toshikazu Watanabe,
Existence and uniqueness theorem for fractional order differential equations with boundary conditions and two fractional order,
Journal of Nonlinear and Convex Analysis, Vol.17, No.2 (2016), 267--273.

20. Toshiharu Kawasaki and Masashi Toyoda,
Note on Knezevic-Miljanovic's theorem in a class of fractional differential equations,
Journal of Nonlinear and Convex Analysis, Vol.16, No.11 (2015), 2235-2241.

19. Toshiharu Kawasaki and Masashi Toyoda,
Fixed point theorem and fractional differential equations with multiple delays related with chaos neuron models,
Applied Mathematics, Vol.6, No.13 (2015), 2192--2198.

18. Toshiharu Kawasaki and Masashi Toyoda,
On the existence of solutions of second order ordinary differential equations,
Proceedings of the International Symposium on Banach and Function Spaces IV, 4 (2014), 403--413.

17. Masashi Toyoda and Toshikazu Watanabe,
Application of a fixed point theorem in partially ordered sets to boundary value problems for fourth order differential equations,
Proceedings of the 8th International Conference on Nonlinear Analysis and Convex Analysis.

16. Toshiharu Kawasaki and Masashi Toyoda, Existence of positive solutions of the Cauchy problem for a second order differential equation, Journal of Inequalities and Applications, 2013, 2013:465.

15. Toshiharu Kawasaki, Masashi Toyoda and Toshikazu Watanabe, Note on the Hahn-Banach theorem in a partially ordered vector space, Journal of Applied Mathematics, 2013 (2013), Article ID 527417, 5 pages.

14. Toshiharu Kawasaki and Masashi Toyoda, Existence of positive solution for the Cauchy problem for an ordinary differential equation, Advances in Intelligent and Soft Computing, 100 (2011), 435--441.

13. Toshiharu Kawasaki, Masashi Toyoda and Toshikazu Watanabe, The Hahn-Banach theorem and the separation theorem in a partially ordered vector space, Journal of Nonlinear Analysis and Optimization, 2 (2011), 105--111.

12. Satoru Takahashi, Wataru Takahashi and Masashi Toyoda, Strong Convergence Theorems for Maximal Monotone Operators with Nonlinear Mappings in Hilbert Spaces, Journal of Optimization Theory and Applications, 147 (2010), 27--41.

11. T. Kawasaki, M. Toyoda and T. Watanabe, Schauder-Tychonoff fs fixed point theorems in a vector lattice, Fixed Point Theory 11 (2009),37--44.

10. T. Kawasaki, M. Toyoda and T. Watanabe, Takahashi's and Fan-Browder's fixed point theorems in a vector lattice, Journal of Nonlinear and Convex Analysis, 10 (2009), 455--462.

9. Koji Aoyama, Yasunori Kimura, Wataru Takahashi and Masashi Toyoda, Strongly nonexpansive sequences and their applications in in Banach spaces, Proceedings of the 8th International Conference on Fixed Point Theory and its Applications, 1--18, 2008.

8. Koji Aoyama, Yasunori Kimura, Wataru Takahashi and Masashi Toyoda, On a strongly nonexpansive sequence in Hilbert spaces, Journal of Nonlinear and Convex Analysis, 8 (2007), 471--490.

7. Koji Aoyama, Yasunori Kimura, Wataru Takahashi and Masashi Toyoda, Approximation of common fixed points of a countable family of nonexpansive mappings in a Banach space, Nonlinear Analysis. Theory, Methods & Applications, 67 (2007), 2350--2360.

6. Koji Aoyama, Yasunori Kimura, Wataru Takahashi and Masashi Toyoda, Finding common fixed points of a countable family of nonexpansive mappings in a Banach space, Scientiae Mathematicae Japonicae, 66 (2007), 89--99.

5. Yasunori Kimura, Wataru Takahashi and Masashi Toyoda, Convergence to common fixed points of a finite family of nonexpansive mappings, Archiv der Mathematik, 84 (2005), 350--363.

4. Hideaki Iiduka, Wataru Takahashi and Masashi Toyoda, Approximation of solutions of variational inequalities for monotone mappings, PanAmerican Mathematical Journal, 14 (2004), 49--61.

3. Wataru Takahashi and Masashi Toyoda, Weak convergence theorems for nonexpansive mappings and monotone mappings, Journal of Optimization Theory and Applications, 118 (2003), 417--428.

2. Masashi Toyoda, Continuity of set-valued monotone mappings,Proceedings of the 2nd International Conference on Nonlinear Analysis and Convex Analysis, 501--505, 2003.

1. Wataru Takahashi, Takayuki Tamura and Masashi Toyoda, Approximation of common fixed points of a family of finite nonexpansive mappings in Banach spaces, Scientiae Mathematicae Japonicae, 56 (2002), 475--480