文章基本信息
- 标题：Maps of manifolds with indefinite metrics preserving certain geometrical entities
- 本地全文：下载
- 作者：R. S. Kulkarni
- 期刊名称：International Journal of Mathematics and Mathematical Sciences
- 印刷版ISSN：0161-1712
- 电子版ISSN：1687-0425
- 出版年度：1978
- 卷号：1
- 期号：1
- 页码：137-140
- DOI：10.1155/S0161171278000174
- 出版社：Hindawi Publishing Corporation
- 摘要：
It is shown that (i) a diffeomorphism of manifolds with indefinite metrics preserving degenerate r -plane sections is conformal, (ii) a sectional curvature-preservlng diffeomorphism of manifolds with indefinite metrics of dimension ≥ 4 is generically an isometry.
