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JOURNALS // Ufimskii Matematicheskii Zhurnal // Archive

Ufimsk. Mat. Zh., 2017 Volume 9, Issue 2, Pages 56–62 (Mi ufa375)

This article is cited in 19 papers

Lower bounds for the area of the image of a circle

B. A. Klishchuk, R. R. Salimov

Institute of Mathematics, Ukrainian National Academy of Sciences, Kiev

Abstract: In the work we consider $Q$-homeomorphisms w.r.t $p$-modulus on the complex plane as $p>2$. We obtain a lower bound for the area of the image of a circle under such mappings. We solve the extremal problem on minimizing the functional of the area of the image of a circle.

Keywords: $p$-modulus of a family of curves, $p$-capacity of condenser, quasiconformal mappings, $Q$-homeomorphisms w.r.t. $p$-modulus.

UDC: 517.5

MSC: 30Ñ65

Received: 16.06.2016


 English version:
Ufa Mathematical Journal, 2017, 9:2, 55–61

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© Steklov Math. Inst. of RAS, 2026