CAJ | 학술논문

为了深入研究schur补的适用范围，引入了三角‐schur补（diagonal‐schur补是其当θ＝π／2时的特殊情况），利用严格积γ‐对角占优矩阵的矩阵性质，证明得到了严格积γ‐对角占优矩阵的三角‐schur补仍是严格积γ‐对角占优矩阵，最后应用数值例子进行了验证。
위료심입연구schur보적괄용범위，인입료삼각‐schur보（diagonal‐schur보시기당θ＝π／2시적특수정황），이용엄격적γ‐대각점우구진적구진성질，증명득도료엄격적γ‐대각점우구진적삼각‐schur보잉시엄격적γ‐대각점우구진，최후응용수치례자진행료험증。
In order to further study and promote schur complements scope ,the triangle‐schur comple‐ments(diagonal‐schur complement is a special case of triangle‐schur complement when θ= π/2) is intro‐duced ,and the properties of strictly product γ‐diagonally dominant matrix is used to obtain the triangle‐schur complements of strictly product γ‐diagonally dominant matrix are strictly product γ‐diagonally dominant matrix .In the end ,the numerical example is given to illustrate the effectiveness of the crite‐ria .