This monograph is the second volume of a graduate text book on the
modern theory of linear one-dimensional singular integral equations.
Both volumes may be regarded as unique graduate text books. Singular
integral equations attract more and more attention since this class of
equations appears in numerous applications, and also because they form
one of the few classes of equations which can be solved explicitly. The
present book is to a great extent based upon material contained in the
second part of the authors' monograph [6] which appeared in 1973 in
Russian, and in 1979 in German translation. The present text includes a
large number of additions and complementary material, essentially
changing the character, structure and contents of the book, and making
it accessible to a wider audience. Our main subject in the first volume
was the case of closed curves and continuous coeffi- cients. Here, in
the second volume, we turn to general curves and discontinuous
coefficients. We are deeply grateful to the editor Professor G. Heinig,
to the translator Dr. S. Roeh, and to the typist Mr. G. Lillack, for
their patient work. The authors Ramat-Aviv, Ramat-Gan, May 26, 1991 11
Introduction This book is the second volume of an introduction to the
theory of linear one-dimensional singular integral operators. The main
topics of both parts of the book are the invertibility and Fredholmness
of these operators. Special attention is paid to inversion methods.