Sufficient and Necessary Conditions for Blockα-diagonally Dominant Matrices
GAO Huishuang
HAN Guichun
Abstract：In this paper,the concept of block α-diagonally dominant is introduced and two sufficient and necessary conditions for block α-diagonally dominant matrices are given.A new practical criterion for block H-matrices is obtained.Finally,the effectiveness of the results is illustrated by numerical examples.
Keywords：block diagonally dominant matricesblock α-diagonally dominant matricesblock H-matrices
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 131-133 )