Real analytic boundary regularity of the Cauchy kernel on convex domains

Author:

Chen So-Chin

Abstract

It is well-known that in one complex variable the Cauchy integral preserves real analyticity near the boundary. In this paper we show that the same conclusion also holds on convex domains with real analytic boundary in higher dimension, where the Cauchy kernel is given by the Cauchy-Fantappiè form of order zero generated by the (l.0)-form C ( ξ , z ) C\left ( {\xi ,z} \right ) , \[ C ( ξ , z ) = ( j = 1 n r ξ j ( ξ ) d ξ j ) ( j = 1 n r ξ j ( ξ ) ( ξ j z j ) ) 1 , C\left ( {\xi ,z} \right ) = \left ( {\sum \limits _{j = 1}^n {\frac {{\partial r}}{{\partial {\xi _j}}}} \left ( \xi \right )d{\xi _j}} \right ){\left ( {\sum \limits _{j = 1}^n {\frac {{\partial r}}{{\partial {\xi _j}}}} \left ( \xi \right )\left ( {{\xi _j} - {z_j}} \right )} \right )^{ - 1}}, \] where r ( ξ ) r\left ( \xi \right ) is the defining function of the domain.

Publisher

American Mathematical Society (AMS)

Subject

Applied Mathematics,General Mathematics

Reference3 articles.

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2. Graduate Texts in Mathematics;Range, R. Michael,1986

3. On the global real analyticity of solutions to 𝑐𝑚_{𝑏} on compact manifolds;Tartakoff, David S.;Comm. Partial Differential Equations,1976

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