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Diagonal symmetrizers for hyperbolic operators with triple characteristics
Tatsuo Nishitani
Symmetrizers for hyperbolic equations are obtained by diagonalizing the Bezoutian matrix of hyperbolic symbols. Such diagonal symmetrizers are applied to the Cauchy problem for hyp…
math.AP2020
Notes on symmetrization by Bezoutiant
Tatsuo Nishitani
Let be a monic hyperbolic polynomial and let be the Bezoutian matrix of and . Then symmetrizes the Sylvester matrix associated with . This fact is observed b…