Projections of hypersurfaces in the Euclidean sphere to great hyperspheres
(11th International Workshop on Real and Complex Singularities 2010)
Projections of hypersurfaces in the Euclidean sphere to great hyperspheres
(第4回福岡・札幌幾何学セミナー 2010)
球面内の超曲面の、大超球への射影
(第4回福岡・札幌幾何学セミナー (九州大学) 2010)
Projections of hypersurfaces in the Euclidean sphere to great hyperspheres
(接触構造、特異点、微分方程式及びその周辺(洞爺湖文化センター) 2010)
The evolute of hypersurface in Euclidean n-sphere and Lagrangian singularity
(Polish-Japanese singularity theory working days, Kazimierz Dolny, Poland 2009)