Keywords
- Cauchy Problem
- Partial Differential Operator
- Converse Implication
- Principal Symbol
- Constant Rank
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References
E.Bernardi, A.Bove, C.Parenti, preprint 1986 (in preparation).
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Dedicated to Hans Lewy
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© 1988 Springer-Verlag
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Bernardi, E., Bove, A., Parenti, C. (1988). On a class of hyperbolic operators with double characteristics. In: Hildebrandt, S., Kinderlehrer, D., Miranda, M. (eds) Calculus of Variations and Partial Differential Equations. Lecture Notes in Mathematics, vol 1340. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0082882
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DOI: https://doi.org/10.1007/BFb0082882
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