Eigenfunctions of the Fourier transform with specified zeros
Eigenfunctions of the Fourier transform with specified zeros
复制标题
具有指定零点的傅里叶变换的特征函数
DOI:
10.1017/s0305004120000249
复制
发表时间:
2019
影响因子:
0.8
通讯作者:
D. Hardin
中科院分区:
文献类型:
--
作者:
A. Feigenbaum;P. Grabner;D. Hardin
Eigenfunctions of the Fourier transform with prescribed zeros played a major role in the proof that the E8 and the Leech lattice give the best sphere packings in respective dimensions 8 and 24 by Cohn, Kumar, Miller, Radchenko and Viazovska. The functions used for a linear programming argument were constructed as Laplace transforms of certain modular and quasimodular forms. Similar constructions were used by Cohn and Gonçalves to find a function satisfying an optimal uncertainty principle in dimension 12. This paper gives a unified view on these constructions and develops the machinery to find the underlying forms in all dimensions divisible by 4. Furthermore, the positivity of the Fourier coefficients of the quasimodular forms occurring in this context is discussed.