A convolution estimate for two-dimensional hypersurfaces
A convolution estimate for two-dimensional hypersurfaces
复制标题
二维超曲面的卷积估计
DOI:
10.4171/rmi/615
复制
发表时间:
2008
影响因子:
1.2
通讯作者:
D. Tataru
中科院分区:
文献类型:
--
作者:
I. Bejenaru;S. Herr;D. Tataru
Given three transversal and sufficiently regular hy- persurfaces in R 3 it follows from work of Bennett-Carbery-Wright that the convolution of two L 2 functions supported of the first and second hypersurface, respectively, can be restricted to an L 2 function on the third hypersurface, which can be considered as a nonlinear version of the Loomis-Whitney inequality. We generalize this result to a class of C 1,� hypersurfaces in R 3 , under scaleable assumptions. The resulting uniform L 2 estimate has applications to nonlinear dispersive equations.