## Analysis of and on uniformly rectifiable sets.(English)Zbl 0832.42008

Mathematical Surveys and Monographs. 38. Providence, RI: American Mathematical Society (AMS). xii, 356 p. (1993).
This book is a mixture of geometric measure theory and harmonic analysis which deals mainly with the quantitative notion of the rectifiability of sets in $$R^n$$, so-called uniform rectifiability, by some techniques in harmonic analysis, such as singular integrals, Littlewood-Paley theory (square function estimates), Carleson measure, Corona decomposition, etc. The two authors of the book did a systematic investigation on the analysis of functions that live in a $$d$$-dimensional set in $$R^n$$, on the behavior of certain linear operators that act on these functions (for example, variants of the Cauchy integral operators), and on the related geometric properties of the involved set. They devoted a series of publications, including a book “Singular integrals and rectifiable sets in $$R^n$$. Au-delà des graphes lipschitziens” [Astérisque 193 (1991; Zbl 0743.49018)] to the topic. This book is a summing up and a remarkable development of these researches. It divides into 4 parts. Part 1 (about 50 pages) gives the background information and the summary of the main results. Part 2 and Part 3 give the proofs of the main results (various characterizations of the uniform rectifiability). Part 4 provides an alternative approach by giving new and more direct proofs.

### MSC:

 42B20 Singular and oscillatory integrals (Calderón-Zygmund, etc.) 49Q15 Geometric measure and integration theory, integral and normal currents in optimization 28A75 Length, area, volume, other geometric measure theory 42-02 Research exposition (monographs, survey articles) pertaining to harmonic analysis on Euclidean spaces 49-02 Research exposition (monographs, survey articles) pertaining to calculus of variations and optimal control 30C65 Quasiconformal mappings in $$\mathbb{R}^n$$, other generalizations 30G35 Functions of hypercomplex variables and generalized variables 30C85 Capacity and harmonic measure in the complex plane

Zbl 0743.49018