双线性型矩阵的微小变形
Miniversal deformations of matrices of bilinear forms
摘要:
V.I. Arnold [Russian Math. Surveys 26(2)(1971)29-43]构造了矩阵在相似性下的最小化变形;即,一个简单的标准形,不仅一个给定的方阵A,而且所有靠近它的矩阵B都可以通过光滑地依赖于B的元素的相似变换约化为该标准形。构造了同余下矩阵的极小变形。
英文摘要:
V.I. Arnold [Russian Math. Surveys 26 (2) (1971) 29-43] constructed a miniversal deformation of matrices under similarity; that is, a simple normal form to which not only a given square matrix A but all matrices B close to it can be reduced by similarity transformations that smoothly depend on the entries of B. We construct a miniversal deformation of matrices under congruence.
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