CAJ | 학술논문

为了进一步研究一类特殊矩阵严格γ‐对角占优矩阵的相关 schur 补性质，本文对其在schur补及diagonal‐schur补概念的基础上进行了推广从而得到三角‐schur补。利用该矩阵本身的性质证明了严格γ‐对角占优矩阵的三角‐schur补仍然是严格γ‐对角占优矩阵（其中当θ＝π／2时，diagonal‐schur补是三角schur补的一种特殊情况），最后利用数值算例验证了其有效性。
위료진일보연구일류특수구진엄격γ‐대각점우구진적상관 schur 보성질，본문대기재schur보급diagonal‐schur보개념적기출상진행료추엄종이득도삼각‐schur보。이용해구진본신적성질증명료엄격γ‐대각점우구진적삼각‐schur보잉연시엄격γ‐대각점우구진（기중당θ＝π／2시，diagonal‐schur보시삼각schur보적일충특수정황），최후이용수치산례험증료기유효성。
In order to further research the schur complements properties of strictly γ‐diagonally dominant matrix ,the triangle‐schur complements of strictly γ‐diagonally dominant matrix is obtained by extending the schur complements and diagonal‐schur complements .It is proved that the triangle‐schur complements is still strictly γ‐diagonally dominant matrix by properties of strictly γ‐diagonally dominant matrix .Final‐ly ,the numerical example is given to illustrates the effectiveness of the criteria .