My main major is singularity theory of differentiable maps and algebraic topology and differential topology of manifolds. As main methods, we use nice smooth maps to study manifolds, which are nice spaces with coordinates. In addition, we have enjoyed studying algebraic geometry and combinatorics, and various mathematics. Once I worked at a private company and was engaged in projects on machine learning and systems after getting a PhD degree. I would like to enjoy supporting all of you and enjoy our problems together!