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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L. V. Ahlfors, Sufficient conditions for quasi-conformal extension, in Discontinuous Groups and Riemann Surfaces (Proc. Conf., Univ. Maryland. College Park, MD, 1973), Annals of Mathematics Studies, Vol. 79, Princeton University Press, Princeton, NJ, 1974, pp. 23–29.
L. V. Ahlfors, Cross-ratios and Schwarzian derivatives in R n, in Complex Analysis: Articles Dedicated to Albert Pfluger on the Occasion of his 80th Birthday, Birkhäuser Verlag, Basel, 1988, pp. 1–15.
J. M. Anderson and A. Hinkkanen, Univalence criteria and quasiconformal extensions, Transactions of the American Mathematical Society 324 (1991), 823–842.
J. Becker, Löwnersche Differentialgleichung und quasikonform fortsetzbare schlichte Funktionen, Journal für die Reine und Angewandte Mathematik 255 (1972), 23–43.
M. Chuaqui, A unified approach to univalence criteria in the unit disc, Proceedings of the American Mathematical Society 123 (1995), 441–453.
M. Chuaqui and J. Gevirtz, Simple curves in Rn and Ahlfors’ Schwarzian derivative, Proceedings of the American Mathematical Society 132 (2004), 223–230.
M. Chuaqui and B. Osgood, General univalence criteria in the disk: extensions and extremal funcions, Annales Academiæ Scientiarum Fennicæ. Mathematica 23 (1998), 101–132.
M. Chuaqui, P. Duren and B. Osgood, The Schwarzian derivative for harmonic mappings, Journal d’Analyse Mathématique 91 (2003), 329–351.
M. Chuaqui P. Duren and B. Osgood, Curvature properties of planar harmonic mappings, Computational Methods and Function Theory 4 (2004), 127–142.
M. Chuaqui, P. Duren and B. Osgood, Univalence criteria for lifts of harmonic mappings to minimal surfaces, Journal of Geometric Analysis 17 (2007), 49–74.
M. Chuaqui, P. Duren and B. Osgood, Injectivity criteria for holomorphic curves in C n, Pure and Applied Mathematics Quarterly 7 (2011), 223–251.
M. Chuaqui, P. Duren and B. Osgood, Quasiconformal Extensions to Space of Weierstrass–Enneper Lifts, Journal d’Analyse Mathématique, to appear, arxiv:math.CV/1304.4198.
U. Dierkes, S. Hildebrandt, A. Küster and O. Wohlrab, Minimal Surfaces I: Boundary Value Problems, Grundlehren der Mathematischen Wissenschaften, Vol. 295, Springer-Verlag, Berlin, 1992.
M. do Carmo, Differential Geometry of Curves and Surfaces, Prentice Hall, Englewood Cliffs, NJ, 1976.
P. Duren, Univalent Functions, Grundlehren der Mathematischen Wissenschaften, Vol. 259, Springer-Verlag, New York, 1983.
Ch. Epstein, The hyperbolic Gauss map and quasiconformal reflections, Journal für die Reine und Angewandte Mathematik 380 (1987), 196–214.
Z. Nehari, The Schwarzian derivative and schlicht functions, Bulletin of the American Mathematical Society 55 (1949), 545–551.
B. Osgood and D. Stowe, The Schwarzian derivative and conformal mapping of Riemannian manifolds, Duke Mathematical Journal 67 (1992), 57–97.
D. Stowe, An Ahlfors derivative for conformal immersions, Journal of Geometric Analysis 25 (2015), 592–615.
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The author was partially supported by Fondecyt Grant #1150115.
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Chuaqui, M. Injectivity of minimal immersions and homeomorphic extensions to space. Isr. J. Math. 219, 983–1011 (2017). https://doi.org/10.1007/s11856-017-1505-z
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DOI: https://doi.org/10.1007/s11856-017-1505-z