Published by
Division of Functional Equations, The Mathematical Society of Japan
Graduate School of Human and Environmental Studies, Kyoto University
Faculty of Science and Engineering, Waseda University
Graduate School of Science, Kyoto University
Faculty of Science and Engineering, Waseda University
Faculty of Science, Gakushuin University
Department of Mathematics and Statistics, University of Arkansas at Little Rock
Graduate School of Mathematical Sciences, The University of Tokyo
Graduate School of Science, Kobe University
Faculty of Science and Engineering, Doshisha University