N. Takahashi (Hiroshima) Title: Modules on quandle spaces and representations of LY algebras Abstract: We consider quandles with geometric structures, which are called topological quandles, smooth quandles and quandle varieties in the topological, smooth and algebraic cases, respectively. Certain kind of smooth quandles, called regular s-manifolds, have been known to be related to the so-called Lie-Yamaguti algebras. A definition of modules on topological quandles was given by Elhamdadi-Moutou, and it generalizes to other categories. I will explain how modules on regular s-manifolds are related to representations of Lie-Yamaguti algebras.