Equality cases for the uncertainty principle in finite Abelian groups
Equality cases for the uncertainty principle in finite Abelian groups
复制标题
有限阿贝尔群中不确定性原理的等式情况
DOI:
10.1007/bf03651331
复制
发表时间:
2010
影响因子:
0.5
通讯作者:
Saifallah Ghobber
中科院分区:
文献类型:
--
作者:
Aline Bonami;Saifallah Ghobber
We consider the families of finite Abelian groups ℤ/ p ℤ × ℤ/ p ℤ, ℤ/ p ^2ℤ and ℤ/ p ℤ×ℤ/ q ℤ for p, q two distinct prime numbers. For the two first families we give a simple characterization of all functions whose support has cardinality k while the size of the spectrum satisfies a minimality condition. We do it for a large number of values of k in the third case. Such equality cases were previously known when k divides the cardinality of the group, or for groups ℤ/ p ℤ.
影响因子:
2.5
作者:
F. Krahmer;G. Pfander;Peter Rashkov
通讯作者:
F. Krahmer;G. Pfander;Peter Rashkov