Injectivity of minimal immersions and homeomorphic extensions to space |
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Authors: | Martin Chuaqui |
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Institution: | 1.Facultad de Matemáticas,Pontificia Universidad Católica de Chile,Santiago 22,Chile |
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Abstract: | We study a recent general criterion for the injectivity of the conformal immersion of a Riemannian manifold into higher dimensional Euclidean space, and show how it gives rise to important conditions for Weierstrass–Enneper lifts defined in the unit disk \(\mathbb{D}\) endowed with a conformal metric. Among the corollaries, we obtain a Becker type condition and a sharp condition depending on the Gaussian curvature and the diameter for an immersed geodesically convex minimal disk in \(\mathbb{R}^3\) to be embedded. Extremal configurations for the criteria are also determined, and can only occur on a catenoid. For non-extremal configurations, we establish fibrations of space by circles in domain and range that give a geometric analogue of the Ahlfors–Weill extension. |
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