Cauchy 1827 PV integral; Riesz-Privalov 1916 boundary-values of holomorphic functions; Calderon-Zygmund 1952 singular-integral L^p theory.
Cauchy 1827 PV integral; Riesz-Privalov 1916 boundary-values of holomorphic functions; Calderon-Zygmund 1952 singular-integral L^p theory.