Crouzeix's conjecture for classes of matrices
Crouzeix's conjecture for classes of matrices
复制标题
矩阵类的克鲁泽猜想
DOI:
10.1016/j.laa.2023.12.008
复制
发表时间:
2023
影响因子:
1.1
通讯作者:
O'Loughlin R
中科院分区:
文献类型:
--
作者:
O'Loughlin R
For a matrix A which satisfies Crouzeix's conjecture, we construct several classes of matrices from A for which the conjecture will also hold. We discover a new link between cyclicity and Crouzeix's conjecture, which shows that Crouzeix's Conjecture holds in full generality if and only if it holds for the differentiation operator on a class of analytic functions. We pose several open questions, which if proved, will prove Crouzeix's conjecture. We also begin an investigation into Crouzeix's conjecture for symmetric matrices and in the case of 3× 3 matrices, we show Crouzeix's conjecture holds for symmetric matrices if and only if it holds for analytic truncated Toeplitz operators.
登录
查看更多内容
DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
A. Atzmon
通讯作者:
A. Atzmon
影响因子:
1.5
作者:
T. Caldwell;A. Greenbaum;Kenan Li
通讯作者:
Kenan Li
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
M. Crouzeix
通讯作者:
M. Crouzeix
影响因子:
1.5
作者:
M. Crouzeix;C. Palencia
通讯作者:
C. Palencia
影响因子:
1.5
作者:
Christer Glader;Mikael Kurula;M. Lindström
通讯作者:
M. Lindström