Abstract:
This paper is devoted to a study of the properties of the classes $K_S(G)$
and $K_L(G)$ of functions $f(z)$ analytic in a region $G$ having a rectifiable Jordan boundary which are representable as Cauchy–Stieltjes integrals
$f(z)=\int_\Gamma(\zeta-z)^{-1}d\mu(\zeta)$ or Cauchy–Lebesgue integrals
$f(z)=\int_\Gamma\omega(\zeta)(\zeta-z)^{-1}d\zeta$, respectively.
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