On injectivity of quasiregular mappings

Iwaniec, Tadeusz; Kovalev, Leonid; Onninen, Jani

doi:10.1090/S0002-9939-08-09820-1

On injectivity of quasiregular mappings
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by Tadeusz Iwaniec, Leonid V. Kovalev and Jani Onninen PDF

Proc. Amer. Math. Soc. 137 (2009), 1783-1791 Request permission

Abstract:

We give sufficient conditions for a planar quasiregular mapping to be injective in terms of the range of the differential matrix.

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