Prehomogeneous vector spaces and related topics (2014) Date: from Monday 1st September to Friday 5th September, 2014 Place: at Rikkyo University, Tokyo JAPAN Organizers: Yumiko Hironaka (Waseda University), Hiroyuki Ochiai (Kyushu University), Marcus J. Slupinski (Universit{\'e} de Strasbourg), Sofiane Souaifi (Universit{\'e} de Strasbourg). Scientific advisors: Hubert Rubenthaler (Universit{\'e} de Strasbourg) Fumihiro Sato (Rikkyo University)