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The generalized Hilbert-Poincaré problem with Carleman’s shifts. (Chinese. English summary) Zbl 0603.30051

This paper deals with the general Hilbert-Poincaré problem with Carleman’s shift for analytic functions \[ (\partial /\partial \bar z)\Phi (z)=0,\quad z\in S^+,\quad Re\{L\Phi (t_ 0)\}=f(t_ 0),\quad t_ 0\in \Gamma \] where \(S^+\) is a simply connected domain with boundary \(\Gamma\), L is an integral differential operator defined on \(\Gamma\), \[ L\Phi (t_ 0)\equiv \sum^{m}_{j=0}\{a_ j(t_ 0)\Phi^{(j)}(t_ 0)+b_ j(t_ 0)\Phi^{(j)}[\alpha (t_ 0)]+ \]
\[ \int_{\Gamma}h_ j(t_ 0,t)\Phi^{(j)}(t)ds+\int_{\Gamma}k_ j[\alpha (t_ 0),t]\Phi^{(j)}(t)ds\}, \] ds is the differential of arc length, \(\alpha\) (t) is a bijective mapping from \(\Gamma\) onto itself, and \(\alpha\) (t) satisfies \[ \alpha (\alpha (t))=t,\quad \alpha '(t)\neq 0. \] Using the integral representation of analytic functions the above problem is reduced to an equivalent singular integral equation with Carleman’s shift. Then the author obtains the formula of index and finds out necessary and sufficient conditions for the solvability of the original problem. Moreover, the generalized Hilbert-Poincaré problem with two Carleman’s shifts is considered as well.
Reviewer: Xu Zhenyan

MSC:

30E25 Boundary value problems in the complex plane
30E20 Integration, integrals of Cauchy type, integral representations of analytic functions in the complex plane
45E05 Integral equations with kernels of Cauchy type