Search Results - "Kraus, Daniela"
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Sharp Lower Bounds for the Hyperbolic Metric of the Complement of a Closed Subset of the Unit Circle and Theorems of Schwarz–Pick-, Schottky- and Landau-type for Analytic Functions
Published in Constructive approximation (01-02-2016)“…Let E be a closed subset of the unit circle. We prove a sharp lower bound for the Poincaré metric λ C \ E ( z ) | d z | of the domain C \ E . This lower bound…”
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On the isolated singularities of the solutions of the Gaussian curvature equation for nonnegative curvature
Published in Journal of mathematical analysis and applications (15-09-2008)“…The precise asymptotic behaviour of the solutions to the two-dimensional curvature equation Δ u = k ( z ) e 2 u with e 2 u ∈ L 1 for bounded nonnegative…”
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Critical sets of bounded analytic functions, zero sets of Bergman spaces and nonpositive curvature
Published in Proceedings of the London Mathematical Society (01-04-2013)“…A classical result due to Blaschke states that for every analytic self‐map f of the open unit disc of the complex plane there exists a Blaschke product B such…”
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A new Schwarz-Pick lemma at the boundary and rigidity of holomorphic maps
Published in Advances in mathematics (New York. 1965) (01-11-2023)Get full text
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Maximal Blaschke products
Published in Advances in mathematics (New York. 1965) (10-07-2013)“…We consider the classical problem of maximizing the derivative at a fixed point over the set of all bounded analytic functions in the unit disk with prescribed…”
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Strong submultiplicativity of the Poincaré metric
Published in The Journal of Analysis (01-06-2016)Get full text
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A sharp Bernstein–type inequality and application to the Carleson embedding theorem with matrix weights
Published in Analysis and mathematical physics (01-02-2022)“…We prove a sharp Bernstein-type inequality for complex polynomials which are positive and satisfy a polynomial growth condition on the positive real axis. This…”
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Blow-Up Solutions of Liouville’s Equation and Quasi-Normality
Published in Computational methods and function theory (01-11-2020)“…We prove that the family F C ( D ) of all meromorphic functions f on a domain D ⊆ C with the property that the spherical area of the image domain f ( D ) is…”
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Composition and Decomposition of Indestructible Blaschke Products
Published in Computational methods and function theory (01-08-2013)“…We prove that the composition of two indestructible Blaschke products is again an indestructible Blaschke product. We also show that if an indestructible…”
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Hippocampal Subfields in Acute and Remitted Depression-an Ultra-High Field Magnetic Resonance Imaging Study
Published in The international journal of neuropsychopharmacology (01-08-2019)“…Studies investigating hippocampal volume changes after treatment with serotonergic antidepressants in patients with major depressive disorder yielded…”
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Critical points of inner functions, nonlinear partial differential equations, and an extension of Liouville's theorem
Published in Journal of the London Mathematical Society (01-02-2008)“…We establish an extension of Liouville's classical representation theorem for solutions of the partial differential equation (PDE) Δ u=4 e2u and combine this…”
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Metrics with conical singularities on the sphere and sharp extensions of the theorems of Landau and Schottky
Published in Mathematische Zeitschrift (01-04-2011)“…An explicit formula for the generalized hyperbolic metric on the thrice-punctured sphere with singularities of order α j ≤ 1 at z j is obtained in all possible…”
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Flights from modernity: German and australian utopian colonies in paraguay 1886-1896
Published in Journal of Australian studies (01-01-2001)Get full text
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On Beurling's boundary value problem in circle packing
Published in Complex variables and elliptic equations (01-02-2012)“…We investigate a discrete counterpart of Beurling's boundary value problem for analytic functions in the framework of circle packing. In the case of discrete…”
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The strong form of the Ahlfors-Schwarz lemma at the boundary and a rigidity result for Liouville's equation
Published 09-10-2023“…We prove a boundary version of the strong form of the Ahlfors-Schwarz lemma with optimal error term. This result provides nonlinear extensions of the boundary…”
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Beurling’s free boundary value problem in conformal geometry
Published in Israel journal of mathematics (01-12-2010)“…The subject of this paper is Beurling’s celebrated extension of the Riemann mapping theorem [ 5 ]. Our point of departure is the observation that the only…”
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NEWSROOM INTEGRATION IN AUSTRIA, SPAIN AND GERMANY: Models of media convergence
Published in Journalism practice (01-08-2009)“…Convergence is reshaping the landscape of journalism in a variety of ways. This comparative study was targeted on integrated newsrooms, which combine at least…”
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A boundary version of Ahlfors’ Lemma, locally complete conformal metrics and conformally invariant reflection principles for analytic maps
Published in Journal d'analyse mathématique (Jerusalem) (01-03-2007)“…A boundary version of Ahlfors' Lemma is established and used to show that the classical Schwarz-Carathéodory reflection principle for holomorphic functions has…”
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Strict Wick-type deformation quantization on Riemann surfaces: Rigidity and Obstructions
Published 02-08-2023“…Let $X$ be a hyperbolic Riemann surface. We study a convergent Wick-type star product $\star_X$ on $X$ which is induced by the canonical convergent star…”
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