مشخصات پژوهش

عنوان	Generalizations of Some Conditions for Drazin Inverses of the Sum of Two Matrices
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Drazin inverse, additive formula, block matrix
چکیده	In this article, we present some formulas of the Drazin inverses of the sum of two matrices under the conditions P2QP = 0; P2Q2 = 0, QPQ = 0 and PQP2 = 0; PQ2 = 0, QP3 = 0 respectively. These conditions are weaker than those used in some literature on this subject. Furthermore, we apply our results to give the representations for the Drazin inverses of block matrix A B C D (A and D are square matrices) with generalized Schur complement is zero.
پژوهشگران	رامش یوسفی (نفر اول)، منصور دانا (نفر دوم)