Any Sasakian structure is approximated by embeddings into spheres
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arXiv
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| Format: | Preprint |
| Published: |
2022
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| _version_ | 1866910575907307520 |
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| author | Loi, Andrea Placini, Giovanni |
| author_facet | Loi, Andrea Placini, Giovanni |
| contents | We show that, for any given $q\geq 0$, any Sasakian structure on a closed manifold $M$ is approximated in the $C^{q}$-norm by structures induced by CR embeddings into weighted Sasakian spheres. In order to obtain this result, we also strengthen the approximation of an orbifold Kähler form by projectively induced ones given by Ross and Thomas in [21] in the $C^0$-norm to a $C^{q}$-approximation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2210_00790 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Any Sasakian structure is approximated by embeddings into spheres Loi, Andrea Placini, Giovanni Differential Geometry 53C25 (Primary) 53C42, 53C20, 57R18 (Secondary) We show that, for any given $q\geq 0$, any Sasakian structure on a closed manifold $M$ is approximated in the $C^{q}$-norm by structures induced by CR embeddings into weighted Sasakian spheres. In order to obtain this result, we also strengthen the approximation of an orbifold Kähler form by projectively induced ones given by Ross and Thomas in [21] in the $C^0$-norm to a $C^{q}$-approximation. |
| title | Any Sasakian structure is approximated by embeddings into spheres |
| topic | Differential Geometry 53C25 (Primary) 53C42, 53C20, 57R18 (Secondary) |
| url | https://arxiv.org/abs/2210.00790 |