論文

• Atsufumi Honda, Kosuke Naokawa, Kentaro Saji, Masaaki Umehara, Kotaro Yamada. On the existence of four or more curved foldings with common creases and crease patterns, Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry, Oct. 2021.  公式リンク  
  
• Kentaro Saji, Masaaki Umehara, Kotaro Yamada. Coherent tangent bundles and Gauss-Bonnet formulas for wave fronts, Journal of Geometric Analysis, Vol. 22, pp. 883--409, Apr. 2012.
• Kentaro Saji, Masaaki Umehara, Kotaro Yamada. A_2-singularities of hypersurfaces with non-negative sectional curvature in Euclidean space, Kodai Math. J., Vol. 34, pp. 390--409, June 2011.
• Kentaro Saji, Masaaki Umehara, Kotaro Yamada. Ak singularities of wave fronts, Math. Proc. Cambridge Philos. Soc., Vol. 146, No. 3, Page 731-746, Sept. 2009.
• Kentaro Saji, Masaaki Umehara, Kotaro Yamada. The geometry of fronts, Ann. of Math., Vol. 169, No. 2, Page 491-529, Apr. 2009.

著書

• 梅原雅顕, 山田光太郎, 佐治健太郎. 特異点をもつ曲線と曲面の幾何学, 特異点をもつ曲線と曲面の微分幾何学, 丸善出版, Dec. 2017.

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