摘要
证明如果A,B∈M-1分别是上、下Hessenberg矩阵,则对任意的H1,H2∈S2,A°B与(A°H1)°(B°H2)都是三对角逆M-矩阵。
If A, B ∈ M^-1 are lower and upper Hessenberg matrices respec-tively, then A ° B and (A ° B l ) ° ( B °H2 ) are tridingonal inverse M-matrices which are totally nonnegative, for any H°, H2 ∈S2.
出处
《沈阳师范大学学报(自然科学版)》
CAS
2009年第2期158-160,共3页
Journal of Shenyang Normal University:Natural Science Edition