Garetto, Claudia
Ruzhansky, Michael
A note on weakly hyperbolic equations with analytic principal part
In this note we show how to include low order terms in the C∞ well-posedness results for weakly hyperbolic equations with analytic time-dependent coefficients. This is achieved by doing a different reduction to a system from the previously used one. We find the Levi conditions such that the C∞ well-posedness continues to hold.
Hyperbolic equations;Well-posedness
2015-04-15
https://repository.lboro.ac.uk/articles/A_note_on_weakly_hyperbolic_equations_with_analytic_principal_part/9387440