Multilevel Compression of Linear Operators: Descendants of Fast Multipole Methods and Calderón-Zygmund Theory

Preface The authors would like to thank V. Rokhlin both for discovering much of the content of later parts of these notes and for elaborating the material for us while we prepared the notes. We would also like to thank R. R. Coifman and L. Greengard for many discussions related to the content of these notes, and S. Zucker for proposing that we develop the course which stimulated us to produce these notes.