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- Umehara Masaaki
- Department of Mathematical and Computing Sciences Tokyo Institute of Technology
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- Yamada Kotaro
- Department of Mathematics Tokyo Institute of Technology
抄録
<p>In the authors' previous work, it was shown that if a zero mean curvature C4-differentiable hypersurface in an arbitrarily given Lorentzian manifold admits a degenerate light-like point, then the hypersurface contains a light-like geodesic segment passing through the point. The purpose of this paper is to point out that the same conclusion holds with just C3-differentiability of the hypersurfaces.</p>
収録刊行物
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- KODAI MATHEMATICAL JOURNAL
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KODAI MATHEMATICAL JOURNAL 44 (1), 69-76, 2021-03-18
国立大学法人 東京工業大学理学院数学系
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詳細情報 詳細情報について
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- CRID
- 1390850391142215296
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- NII論文ID
- 130008000449
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- DOI
- 10.2996/kmj44104
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- ISSN
- 18815472
- 03865991
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可