Some results related to invertiblematrices over bounded distributive lattice are generalized to matrices over incline.
将有界分配格上可逆矩阵的有关结果推广到坡上的矩阵。
2
The linear operators that strongly preserve invertiblematrices over some antinegative commutative semirings with no zero divisors were characterized.
刻画了在非负无零因子交换半环上强保持可逆矩阵的线性算子。
3
A square real matrix a is called an S2NS matrix, if every matrix with the same sign pattern as a is invertible, and the inverses of all such matrices have the same sign pattern.