Search results for "Picard theorem"

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Sharpness of Rickman’s Picard theorem in all dimensions

2015

We show that given \({n \geqslant 3}\), \({q \geqslant 1}\), and a finite set \({\{y_1, \ldots, y_q \}}\) in \({\mathbb{R}^n}\) there exists a quasiregular mapping \({\mathbb{R}^n\to \mathbb{R}^n}\) omitting exactly points \({y_1, \ldots, y_q}\).

Distortion (mathematics)Discrete mathematicsRickman’s Picard theoremGeneral Mathematicsquasiregular mappingsFinite setPicard theoremMathematics30C65
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Mappings of finite distortion: The Rickman-Picard theorem for mappings of finite lower order

2004

We show that an entire mappingf of finite distortion with finite lower order can omit at most finitely many points when the distortion function off is suitably controlled. The proof uses the recently established modulus inequalities for mappings of finite distortion [15] and comparison inequalities for the averages of the counting function. A similar technique also gives growth estimates for mappings having asymptotic values.

Distortion (mathematics)Distortion functionPure mathematicsPartial differential equationGeneral MathematicsMathematical analysisLower orderFunction (mathematics)AnalysisPicard theoremMathematicsJournal d'Analyse Mathématique
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