@article {ZHANG2023115187,
	title = {Exact expressions for the Drazin inverse of anti-triangular matrices},
	journal = {Journal of Computational and Applied Mathematics},
	volume = {428},
	year = {2023},
	pages = {115187},
	abstract = {The main contribution of this paper is to develop explicit expressions for the Drazin inverse of two kinds of anti-triangular block complex matrices under new assumptions. Further, we apply our results to obtain new formulae for the Drazin inverse of a 2~{\texttimes}~2 block complex matrix. We present a list of well-known results which are recovered in this paper. We give three examples to illustrate our new explicit expressions.},
	keywords = {Anti-triangular block matrix, Block matrix, Drazin inverse, Index},
	issn = {0377-0427},
	doi = {https://doi.org/10.1016/j.cam.2023.115187},
	url = {https://www.sciencedirect.com/science/article/pii/S0377042723001310},
	author = {Daochang Zhang and Yue Zhao and Mosi{\'c}, Dijana and Vasilios N. Katsikis}
}
