Activity

Editorial Board

• Editorial Board of Yokohama Mathematical Journal (2022.11 -- current)

Committee

• Local Organizing Committee of The Asian Conference on Nonlinear Analysis and Optimization, Matsue, Japan, September 14-17,2008
• Local Organizing Committee of The 6th International Conference on Nonlinear Analysis and Convex Analysis, Tokyo, Japan, March 27-31, 2009
• Local Organizing Committee of The 8th International Conference on Nonlinear Analysis and Convex Analysis, Hirosaki, Japan, August 2-6, 2013
• Local Organizing Committee of The 5th Asian conference on Nonlinear Analysis and Optimization , Niigata, Japan, August 1-6, 2016.
• Local Organizing Committee of The 10th Anniversary Conference on Nonlinear Analysis and Convex Analysis, Hokkaido (Chitose), July 4-9, 2017.
• Local Organizing Committee of The 6th Asian conference on Nonlinear Analysis and Optimization , Okinawa, Japan, November 5-9, 2018.
• Local Organizing Committee of International Conference on Nonlinear Analysis and Convex Analysis & International Conference on Optimization: Techniques and Applications Hakodate, Japan, August 26-31, 2019.