M.Sc. Student in Applied Mathematics Khon Kaen University         2023 -
Thesis Title: Iterative methods for solving convex and non-convex optimization problems over the functional constrained sets
Advisor: Assoc. Prof. Dr. Nimit Nimana

B.Sc. (Mathematics)                    Khon Kaen University         2022
Undergraduate Thesis Title: A proximal gradient method for convex optimization problems with functional constraints
Advisor: Assoc. Prof. Dr. Nimit Nimana

Development and Promotion of Science and Technology Talents Project (DPST): Full-tuition scholarship from 2015 to present

Convex Optimizations

Non-convex Optimizations

Functional Constraints

📄 Pio-on, J., & Nimana, N. (2025). A Simultaneous Quasi-Subgradient Method for Minimizing Convex Function with Quasi-Convex Functional Constraints, Journal of Optimization Theory and Applications, 207, 55. [LINK]

📄 Prangprakhon, M., Pioon, J., Nimana, N., & Cho, Y. J. (2025). A Greedy Fixed-Point Method for Solving Variational Inequalities over the Fixed-Point Constraints. Numerical Functional Analysis and Optimization, 46(6), 395–424. [LINK]

📄 Pioon, J., Petrot, N. & Nimana, N. (2024). Convergence of distributed approximate subgradient method for minimizing convex function with convex functional constraints. AIMS Mathematics, 9, 19154–19175. [PDF]

Akita Prefectural University, Akita, Japan, from September 14 - December 14, 2025. 

Akita Prefectural University, Akita, Japan, from December 11-17, 2023. (Sakura Invitation Program)

A Simultaneous Subgradient Method for Solving Nonlinear Fractional Programming with Functional Constraints, Symposium on Real Analysis, November 15-16, 2025 at Faculty of Education, Iwate University (Ueda campus), Japan.

A Simultaneous Subgradient Method for Solving Nonlinear Fractional Programming with Functional Constraints, the 12th Asian Conference on Fixed Point (ACFPTO 2025), January 15-18, 2025, at Duangtawan Hotel Chiang Mai, Chiang Mai, Thailand.

A Simultaneous Quasi-Subgradient Method for Minimizing Convex Function with Quasi-Convex Functional Constraints, the 4th International Conference and Workshop on Applied Nonlinear Analysis, August 6-8, 2024, at Bangsaen Heritage Hotel, Bangsean, Chonburi, Thailand.

A Simultaneous Quasi-Subgradient Method for Minimizing Convex Function with Quasi-Convex Functional Constraints, International Conference on Applied Mathematics (ICAM2024), July 11-13, 2024, at Ton Duc Thang University, Ho Chi Min, Vietnam.

Convergence of Approximate Subgradient Method for Convex Optimization Problems with Convex Functional Constraints, the 11th Asian Conference on Fixed Point Theory and Optimizations (ACFPTO2023), August 2-5, 2023 at A-ONE The Royal Cruise Hotel, Pattaya, Thailand.