Interpolation at a Few Points
β Scribed by Daniel Wulbert
- Book ID
- 102579501
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 107 KB
- Volume
- 96
- Category
- Article
- ISSN
- 0021-9045
No coin nor oath required. For personal study only.
β¦ Synopsis
For k=2 and 3, B. Shekhtman proved that n+k&1 is the smallest dimension of a subspace, F C(R n ) that can interpolate to k specified real values at k distinct points in R n . Here we characterize such spaces that interpolate at a few points. The characterization provides an economical proof of Shekhtman's theorems, as well as establishing new properties of these spaces.
π SIMILAR VOLUMES
The so-called "Padua points" give a simple, geometric and explicit construction of bivariate polynomial interpolation in the square. Moreover, the associated Lebesgue constant has minimal order of growth O(log 2 (n)). Here we show four families of Padua points for interpolation at any even or odd de