Polygonal Dirichlet Kernels and growth of Lebesgue constants
β Scribed by A. A. Yudin; V. A. Yudin
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 1985
- Tongue
- English
- Weight
- 599 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0001-4346
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
For the weight function (1 -||x|| 2 ) m -1/2 on the unit ball, a closed formula of the reproducing kernel is modified to include the case -1/2 < m < 0. The new formula is used to study the orthogonal projection of the weighted L 2 space onto the space of polynomials of degree at most n, and it is pr
The Lebesgue constants of cubic partial sums of order N of n-dimensional Fourier series behave asymptotically as ln n N. For cubic linear means generated by a function vanishing only at 2 n corner points the order of growth of the Lebesgue constants decreases and equals asymptotically to ln ny 1 N.