Extremizers for Fourier restriction on hyperboloids
Extremizers for Fourier restriction on hyperboloids
复制标题
双曲面傅立叶限制的极值化
DOI:
10.1016/j.anihpc.2018.06.001
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Mateus Sousa
中科院分区:
文献类型:
--
作者:
E. Carneiro;D. O. Silva;Mateus Sousa
Abstract The L 2→ L p adjoint Fourier restriction inequality on the d-dimensional hyperboloid H d⊂ R d+ 1 holds provided 6≤ p<∞, if d= 1, and 2 (d+ 2)/d≤ p≤ 2 (d+ 1)/(d− 1), if d≥ 2. Quilodrán [35] recently found the values of the optimal constants in the endpoint cases (d, p)∈{(2, 4),(2, 6),(3, 4)} and showed that the inequality does not have extremizers in these cases. In this paper we answer two questions posed in [35], namely:(i) we find the explicit value of the optimal constant in the endpoint case (d, p)=(1, 6)(the remaining endpoint for which p is an even integer) and show that there are no extremizers in this case; and (ii) we establish the existence of extremizers in all non-endpoint cases in dimensions d∈{1, 2}. This completes the qualitative description of this problem in low dimensions.
影响因子:
2.6
作者:
Bez N
通讯作者:
Bez N
影响因子:
2.2
作者:
Bennett J
通讯作者:
Bennett J