Hadamard-type inequalities for k-positive matrices
Hadamard-type inequalities for k-positive matrices
复制标题
k 正矩阵的 Hadamard 型不等式
DOI:
10.1016/j.laa.2021.11.018
复制
发表时间:
2022
影响因子:
1.1
通讯作者:
Le, Nam Q.
中科院分区:
文献类型:
--
作者:
Le, Nam Q.
We establish Hadamard-type inequalities for a class of symmetric matrices called k-positive matrices for which the m-th elementary symmetric functions of their eigenvalues are positive for all m≤ k. These matrices arise naturally in the study of k-Hessian equations in Partial Differential Equations. For each k-positive matrix, we show that the sum of its principal minors of size k is not larger than the k-th elementary symmetric function of their diagonal entries. The case k= n corresponds to the classical Hadamard inequality for positive definite matrices. Some consequences are also obtained.
影响因子:
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作者:
N. Ivochkina;N. Filimonenkova
通讯作者:
N. Filimonenkova
DOI:
10.4171/rmi/1306
发表时间:
2022
期刊:
Revista Matemática Iberoamericana
影响因子:
--
作者:
Le, Nam Q.
通讯作者:
Le, Nam Q.