The extremal ranks of A 1 -B 1 XC 1 subject to a pair of matrix equations
Rendiconti del Seminario Matematico della Università di Padova, Tome 116 (2006), pp. 55-69. 
@article{RSMUP_2006__116__55_0,
     author = {Tian, Yongge and Liu, Yonghui},
     title = {The extremal ranks of $A_1 - B_1 X C_1$ subject to a pair of matrix equations},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {55--69},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {116},
     year = {2006},
     mrnumber = {2287343},
     zbl = {1167.15300},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_2006__116__55_0/}
}
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Tian, Yongge; Liu, Yonghui. The extremal ranks of $A_1 - B_1 X C_1$ subject to a pair of matrix equations. Rendiconti del Seminario Matematico della Università di Padova, Tome 116 (2006), pp. 55-69. http://www.numdam.org/item/RSMUP_2006__116__55_0/

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