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On weighted hyperbolic polynomials. (English. Russian original) Zbl 1314.35021

J. Contemp. Math. Anal., Armen. Acad. Sci. 49, No. 5, 212-222 (2014); translation from Izv. Nats. Akad. Nauk Armen., Mat. 49, No. 5, 23-39 (2014).
Summary: The results by Gårding, Larsson, Cattabriga, Rodino, Calvo on correctness of the Cauchy problem for \(N\)-hyperbolic equations are generalized. We prove that in the general case where the vector \(N = (N_1,\ldots, N_n)\) is different from the vector \((1, 0, \ldots, 0)\), for the correctness of the Cauchy problem a stronger condition is required, which we call weighted hyperbolicity condition. We also discuss the properties of polynomials possessing the weighted hyperbolicity property.

MSC:

35H10 Hypoelliptic equations
12E10 Special polynomials in general fields
Full Text: DOI

References:

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