Canonical parameters on a surface in $\mathbb R^4$
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866915679970525184 |
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| author | Kassabov, Ognian Milousheva, Velichka |
| author_facet | Kassabov, Ognian Milousheva, Velichka |
| contents | In the present paper, we study surfaces in the four-dimensional Euclidean space $\mathbb{R}^4$. We define special principal parameters, which we call canonical, on each surface without minimal points, and prove that the surface admits (at least locally) canonical principal parameters. They can be considered as a generalization of the canonical parameters for minimal surfaces and the canonical parameters for surfaces with parallel normalized mean curvature vector field introduced before. We prove a fundamental existence and uniqueness theorem formulated in terms of canonical principal parameters, which states that the surfaces in $\mathbb{R}^4$ are determined up to a motion by four geometrically determined functions satisfying a system of partial differential equations. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2508_00148 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Canonical parameters on a surface in $\mathbb R^4$ Kassabov, Ognian Milousheva, Velichka Differential Geometry 53A07, 53B20 In the present paper, we study surfaces in the four-dimensional Euclidean space $\mathbb{R}^4$. We define special principal parameters, which we call canonical, on each surface without minimal points, and prove that the surface admits (at least locally) canonical principal parameters. They can be considered as a generalization of the canonical parameters for minimal surfaces and the canonical parameters for surfaces with parallel normalized mean curvature vector field introduced before. We prove a fundamental existence and uniqueness theorem formulated in terms of canonical principal parameters, which states that the surfaces in $\mathbb{R}^4$ are determined up to a motion by four geometrically determined functions satisfying a system of partial differential equations. |
| title | Canonical parameters on a surface in $\mathbb R^4$ |
| topic | Differential Geometry 53A07, 53B20 |
| url | https://arxiv.org/abs/2508.00148 |