Berlin etc.: Springer-Verlag. 528 p. DM 98.00 (Orig. Akademie-Verlag, Berlin) (1986).

The book is translated with some modifications from the German edition (1980;

Zbl 0442.47027). It remains to indicate only the changes, incorporated by the translation.
In Chapter XI the new § 12 deals with the recent results on weighted norm inequalities for one-dimensional singular integral operators, due to R. Hunt. B. Muckenhoupt, R. Wheeden.
In Chapter XII the new § 7 is added, where polysingular integral operators with continuous coefficients are considered in the space $L\sb p({\bbfR}\sp 2)$ (results of I. Simonenko and V. Pilidi). In the same chapter § 8 deals with some basic notions for pseudo-differential operators in Sobolev-spaces $W\sb 2\sp{(1)}({\bbfR}\sp m)$ (the boundedness, composition formula, parametrix,...).
In Chapter XVII, § 3 two new subsections (3.6 and 3.7) deal with the polynomial approximation method for singular integral equations over a finite interval with discontinuous coefficients. In the same chapter the new § 4 describes the spline collocation method for a one-dimensional singular integral equation.
In many other places new results can be found that have appeared within the 5 years after the first edition. References are extended on 150 new items.