Trends in Hölder approximation (Q2761427)

The authors present a pleasant near complete survey of the main known results related with qualitative and quantitative trigonometric and polynomial approximation in Hölder (Lipschitz) metric. In the references 56 papers are listed. The paragraph titles are: 1. Introduction, 2. Summation of Fourier series, 3. Best trigonometric approximation, 4. Best algebraic approximation, 5. Other approximation processes. The authors recall 22 theorems and 3 corollaries. It is an attractive work.NEWLINENEWLINEFor the entire collection see [Zbl 0970.00036].