部分多様体論に興味があります．主に3次元（ローレンツ）ハイゼンベルグ群の曲線・曲面を研究しています．
I am interested in submanifold theory.  My research mainly focuses on the theory of curves in semi-Euclidean spaces and in (Lorentzian) Heisenberg groups, as well as on minimal and constant mean curvature surfaces. 

キーワード：微分幾何，部分多様体論，平均曲率一定曲面，極小曲面，時間的曲面，ハイゼンベルグ群

[Address]  〒582-8582 大阪府柏原市旭ヶ丘4-698-1
4-698-1 Asahigaoka, Kashiwara, Osaka, Japan
Post code 582-8582

[Email]  kiyohara-h51(at)cc.osaka-kyoiku.ac.jp　　(at)は@に置換

1. Osaka-Kyoiku University

2. Mathematics Education, Osaka Kyoiku University

3. researchmap