一般矩阵的准可逆和准正交

Pre-invertible and pre-orthogonal of universal matrix

推广了方阵的可逆与正交概念,提出了一般矩阵的准可逆、准非奇异、准正交概念,并讨论了它们的性质,把非奇异方阵的正交三角分解推广到准非奇异阵上.

ThedeteminantoftheuniversalmatrixisextendedbyWangLizhiwithexpantionaryquatilyofthede teminant.Thisarticlegavetheconceptofpre-invertible,pre -nonsingularandpre -orthogonaloftheuniversalma trix ,anddiscussedtheirproperties.Thematrix′sorthogonaltriangledecompositionisextendedintopre -nonsingular matrixfields.