journal6 ›› 2003, Vol. 24 ›› Issue (1): 46-49.
摘要:引入次M-矩阵与逆次M-矩阵的概念,讨论了二者上的Hadamard-Fischer不等式,并改进了Hadamard不等式的结果,即对任一非奇异n阶次M-矩阵A都满足|det A|≤min∏n[]i=1an-i+1 i-max≠σ∈Sn(∏n[]i=1an-σ(i)+1 ian-i+1 σ(i))1/2,min(an-k+1 k∏ni=1i≠k(an-i+1 i-(an-k+1 ian-i+1 k)/(an-k+1 k))).