KKU - Laboratory for Mathematical Optimization
Ph.D. Student in Mathematics Khon Kaen University 2024 -
M.Sc. (Mathematics) Khon Kaen University 2024
Thesis Title: Delayed first-order iterative methods for solving nonsmooth convex optimization problems
Advisor: Assoc. Prof. Dr. Nimit Nimana
B.Sc. (Mathematics) Khon Kaen University 2021
Undergraduate Thesis Title: Convergence of a Distributed Method for Minimizing Sum of Convex Functions with Fixed Point Constraints
Advisor: Asst. Prof. Dr. Nimit Nimana
Development and Promotion of Science and Technology Talents Project (DPST): Full-tuition scholarship from 2017 to present
Bilevel Optimizations
Large-Scale Optimizations
Fractional Optimizations
Convex Analysis
📄 Feesantia, T., Arunrat, T., & Nimana, N. (2025). Incremental Delayed Subgradient Method for Decentralized Nonsmooth Convex–Concave Minimax Optimization. Algorithms, 18(3), 126. [PDF]
📄 Arunrat, T., Namsak, S. & Nimana, N. (2023). An asynchronous subgradient-proximal method for solving additive convex optimization problems. Journal of Applied Mathematics and Computing, 69, 3911–3936. [LINK]
📄 Arunrat, T. & Nimana, N. (2023). A delayed subgradient method for nonsmooth convex-concave min–max optimization problems. Results in Control and Optimization, 12, 100266. [PDF]
📄 Ekkarntrong, N., Arunrat, T., & Nimana, N. (2021). Convergence of a Distributed Method for Minimizing Sum of Convex Functions with Fixed Point Constraints, Journal of Inequalities and Applications, 2021:197. [PDF]
Department of Applied Mathematics, National Sun Yat-Sen University, Kaohsiung, Taiwan, from June 1-14, 2025.
Akita Prefectural University, Akita, Japan, from December 11-17, 2023. (Sakura Invitation Program)
Faculty of Mathematics, University of Vienna, Vienna, Austria, from March 31 - July 31, 2023.
Delayed subgradient methods for nonsmooth convex-concave min-max optimization problems, The Asian Mathematics Conference 2025, August 3-6, 2025, at The Empress Convention Center, Chiang Mai, Thailand
An Iterative Regularized Subgradient Algorithm with Information Delay for Solving Bilevel Convex Optimization Problems, Mini Optimization Workshop, June 3, 2025 at Department of Mathematics, National Taiwan Normal University, Taiwan.
A delayed subgradient method for nonsmooth convex- concave min–max optimization problems, the 12th Asian Conference on Fixed point (ACFPTO 2025), January 15-18, 2025, at Duangtawan Hotel Chiang Mai, Chiang Mai, Thailand.
An Iterative Regularized Incremental Method for Solving Bilevel Additive Convex Optimization Problems, the 4th International Conference and Workshop on Applied Nonlinear Analysis, August 6-8, 2024, at Bangsaen Heritage Hotel, Bangsean, Chonburi, Thailand.
An Iterative Regularized Incremental Method for Solving Bilevel Additive Convex Optimization Problems, International Conference on Applied Mathematics (ICAM2024), July 11-13, 2024, at Ton Duc Thang University, Ho Chi Min, Vietnam.
An Asynchronous Subgradient-Proximal Method for Solving Additive Convex Optimization Problems, the 11th Asian Conference on Fixed Point Theory and Optimizations (ACFPTO2023), August 2-5, 2023 at A-ONE The Royal Cruise Hotel, Pattaya, Thailand.
An Iterative Regularized Incremental Method for Solving Bilevel Additive Convex Optimization Problems, the 8th International Workshop on Nonlinear Analysis, Fixed Point Theory and Applications, November 22, 2022, online: Zoom Meeting.
An Iterative Regularized Incremental Method for Solving Bilevel Additive Convex Optimization Problems, International Conference on Digital Image Processing and Machine Learning (ICDIPML 2022), September 8-9, 2022, online: Zoom Meeting.
