In my research work, I recently have come across a(adsbygoogle = window.adsbygoogle || []).push({});

system of three linear first order pde's whose characteristic polynomial has one

real and two complex conjugate zeros. I have searched the available

resources and could nowhere find out which category

(elliptic/hyperbolic/parabolic) it falls in. I need to analyze it

qualitatively, though a numerical solution can easily be found out.

It would be of great help for me if anybody kindly let me know possible

references where I could find out pdes of this type.

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# Query regarding classification of pde

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