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Natural Science, Biology, 2024, 14, 67–75
DOI: 10.xxxx/example-doi Special Issue 1(2), 2022 186–1928

The Newton Polyhedron, Spaces of Differentiable Functions and General Theory of Differential Equations

Received N/A; revised N/A; accepted N/A
CC BY-NC 4.0 This work is licensed under Creative Commons Attribution–NonCommercial International License (CC BY-NC 4.0).

In the paper we investigate the role of the  Newton polyhedron R,ℜ, which generates a multianisotropic  Sobolev space  WRpWpℜ and   Gevrey space GR,Gℜ,   and the role of the  Newton polyhedron R(P)ℜ(P) of a polynomial P(ξ)P(ξ)  ( of a linear differential operator  P(D)P(D)) in the behaviour of  P(ξ)P(ξ) at infinity and in the smoothness of solutions of the equation P(D)u=f.

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