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arXiv · 0807.1009

Diagonalisation schemes and applications

Kay Jachmann·Jens Wirth
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Abstract

These notes develop aspects of perturbation theory of matrices related to so-called diagonalisation schemes. Primary focus is on constructive tools to derive asymptotic expansions for small/large parameters of eigenvalues and eigenprojections of families of matrices depending upon real/complex parameters. Applications of the schemes in different frameworks --including hyperbolic polynomials, asymptotic integration of ordinary differential equations, diagonalisation within symbolic hierarchies and pseudo-differential decoupling of hyperbolic-parabolic coupled systems-- are also discussed and references to further applications given.

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Kay Jachmann, Jens Wirth. 2008-07-07. Diagonalisation schemes and applications. https://doi.org/10.1007/s10231-009-0125-6

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