triangular matrices

Let n be the nilpotent Lie algebra consisting of all strictly upper triangular ( n+ 1)×( n+ 1) matrices over an integral domain R of characteristic 2.The aim of this paper is to give an explicit description of the automorphism group of the Lie algebra n.

设n是特征为2的整环上由所有严格上三角（n+1）×（n+1）矩阵构成的李代数。本文的目的是确定李代数n的自同构群。

Linear maps preserving inverses of upper triangular matrices over fields

域上保上三角矩阵逆的线性映射

Triangular matrices, in particular, are usually quite tractable.

特别地, 三角矩阵常是十分易于驾驭的.

Additive Adjugate Preservers on The Triangular Matrices

三角矩阵空间上保伴随矩阵的加法算子

For casual systems, some matrices in the linear time-invariant model of the multirate digital control system must be lower block-triangular.

对于因果系统来说，其多采样率控制系统的线性时不变模型中的某些矩阵必须为分块下三角阵。

Another useful property of triangular matrices is the ease with which their reciprocals may be calculated.

三角矩阵另一个有用的特性是容易用他们的倒数计算出来.