本书内容简介:This book is an outgrowth of a course which I gave atOrsay duringthe academic year 1 966.67 MY purpose in those lectureswas to pre-sent some of the required background and at the sametime clarify theessential unity that ests between several relatedareas of analysis.These areas are:the estence and boundedness ofsingular integral op-erators;the boundary behavior of harmonicfunctions;and differentia-bility properties of functions of severalvariables.AS such the moncore of these topics may be said torepresent one of the central develop-ments in n.dimensional Fourieranalysis during the last twenty years,and it can be expected tohave equal influence in the future.These pos.