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 Ufimsk. Mat. Zh., 2012, Volume 4, Issue 1, Pages 146–152 (Mi ufa140)

Boundary problem for the generalized Cauchy–Riemann equation in spaces, described by the modulus of continuity

A. Y. Timofeev

Syktyvkar State University, Syktyvkar, Russia

Abstract: The article is devoted to the Dirichlet problem in the unit disk $G$ for $\partial_{\bar z}w+b(z)\overline w=0$, $\Re w=g$ on $\partial G$, $\Im w=h$ at the point $z_0=1$, where $g$ is a given Lipsñhitz continuous function. The coefficient $b$ belongs to a subspace of $L_2(G)$ which is not contained in $L_q(G)$, $q>2$ in the general case. Thus, I. Vekua's theory is not applicable in this case. The article shows that, as well as in the case of Dirichlet's problem for holomorphic functions, there appears a “logarithmic effect”. The solution outside the point $z=0$ satisfies the Lipsñhits conditions with logarithmic factors. The existence of a continuous solution of the problem in $\overline G$ is proved.

Keywords: generalized Cauchy–Riemann equation, Dirichlet problem, modulus of continuity, Tikhonov's fixed point theorem.

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Citation: A. Y. Timofeev, “Boundary problem for the generalized Cauchy–Riemann equation in spaces, described by the modulus of continuity”, Ufimsk. Mat. Zh., 4:1 (2012), 146–152

Citation in format AMSBIB
\Bibitem{Tim12} \by A.~Y.~Timofeev \paper Boundary problem for the generalized Cauchy--Riemann equation in spaces, described by the modulus of continuity \jour Ufimsk. Mat. Zh. \yr 2012 \vol 4 \issue 1 \pages 146--152 \mathnet{http://mi.mathnet.ru/ufa140} 

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This publication is cited in the following articles:
1. A. S. Ilchukov, “O povedenii resheniya kraevoi zadachi dlya obobschennogo uravneniya Koshi–Rimana”, Vestn. Udmurtsk. un-ta. Matem. Mekh. Kompyut. nauki, 2013, no. 2, 27–34
2. N. S. Imanbaev, “Zadacha o sobstvennykh znacheniyakh differentsialnogo operatora Koshi–Rimana s nelokalnymi kraevymi usloviyami”, Vestn. Sam. gos. tekhn. un-ta. Ser. Fiz.-mat. nauki, 1(34) (2014), 25–36
3. Imanbaev N.S., Kanguzhin B.E., “On Spectral Question of the Cauchy-Riemann Operator With Homogeneous Boundary Value Conditions”, Bull. Karaganda Univ-Math., 90:2 (2018), 49–55
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