A boundedness result for twisted convolution
✍ Scribed by Alexey Karapetyants; Enrique Ramírez de Arellano
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 210 KB
- Volume
- 250
- Category
- Article
- ISSN
- 0025-584X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
We consider twisted convolution operators with kernels having singularities on a sphere and having as Fourier transform the oscillatory symbol m~α~(|ξ|) = |ξ|^–α^e^i|ξ|^, 0 ≤ ℜ︁__α__ < 2__n__. We give integral representations for such operators and, as a principal result, we study L~p~–L~q~ estimates for them.
📜 SIMILAR VOLUMES
In this paper we give an upper bound for the Picard number of the rational surfaces which resolve minimally the singularities of toric log Del Pezzo surfaces of given index ℓ. This upper bound turns out to be a quadratic polynomial in the variable ℓ.