The NavierStokes Problem - Rilegato

Alexander G. Ramm (author)

Rilegato

ISBN 10: 1636391249 ISBN 13: 9781636391243

Casa editrice: Morgan & Claypool Publishers, 2021

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The main result of this book is a proof of the contradictory nature of the Navier‒Stokes problem (NSP). It is proved that the NSP is physically wrong, and the solution to the NSP does not exist on ℝ₊ (except for the case when the initial velocity and the exterior force are both equal to zero; in this case, the solution 𝑣(𝑥, 𝑡) to the NSP exists for all 𝑡 ≥ 0 and 𝑣(𝑥, 𝑡) = 0).

It is shown that if the initial data 𝑣₀(𝑥) ≢ 0, 𝑓(𝑥,𝑡) = 0 and the solution to the NSP exists for all 𝑡 ϵ ℝ₊, then 𝑣₀(𝑥) := 𝑣(𝑥, 0) = 0.

This Paradox proves that the NSP is physically incorrect and mathematically unsolvable, in general. Uniqueness of the solution to the NSP in the space 𝑊₂¹(ℝ³) � C(ℝ₊) is proved, 𝑊₂¹(ℝ³) is the Sobolev space, ℝ₊ = [0, ∞).

Theory of integral equations and inequalities with hyper-singular kernels is developed. The NSP is reduced to an integral inequality with a hyper-singular kernel.