Kiyoshi Ando (The University of Electro-Communications, Japan) Guizhen Liu (Shandong University, China) Zhiming Ma (Chinese Academy of Sciences, China) Janos Pach (City College of CUNY; Courant Institute of New York University; Renyi Institute of Hungarian Academy of Sciences, USA) Jorge Urrutia (Universidad Nacional Autónoma de México, Mexico) Fuji Zhang (Xiamen University, China) Chuanming Zong (Peking University, China)