数理科学談話会のお知らせ image



2018年度第4回数理科学談話会
日時 2月12日(火)13:00〜14:00

※ いつもと時間帯が異なりますので、ご注意ください。
場所 教育・研究2号館(Q棟)4階 Q402 (数学ゼミナール室)
講演者 Haiou Yu 氏 (Jilin University of Finance and Economics,吉林経済大学)
講演題目 Framed surfaces in the 3 dimensional sphere
要旨 In the talk, we consider about smooth surface with singular points in the Euclidean 3 dimensional sphere. As singular surface, we would like to study framed surface. A framed surface is a smooth surface with a moving frame. One of the idea to treat the singular surface is that we consider the front or frontals as smooth surface with singular points. An other consideration of smooth surface with singular points is that construct framed surface. M. Takahashi studied framed surface in Euclidean 3-space, investigate properties of the framed surface. In this talk, we introduce the basic invariants of the framed surface in the 3-sphere. These mappings are useful to recognize a Legendre immersion or a framed immersion. Moreover, we can study framed surface from the view of spherical Legendrian duality dual theory. as an application of the construction of framed surface, we give relationships among framed surface in the Euclidean space and 3-sphere.

この談話会は数理科学に関心のある方ならどなたでもご参加いただけます。 お気軽にお越し下さい。
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2018年度問合せ先:森田 英章 [morita"at"mmm.muroran-it.ac.jp]

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