Invariant Neutral Subspaces for Symmetric and Skew Real Matrix Pairs
Invariant Neutral Subspaces for Symmetric and Skew Real Matrix Pairs
Abstract Real matrix pairs ( A,H ) satisfying det H ≠ 0, H T = ε H , and HA - η A T H , where ε, η take the values +1 or —1, are considered. It is shown that maximal A -invariant H -neutral subspaces have the same …