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Mathematical topics in fluid mechanics, 1, incompressible models / Pierre-Louis Lions

Auteur principal : Lions, Pierre-Louis, 1956-, AuteurType de document : MonographieCollection : Oxford lecture series in mathematics and its applications, 3Langue : anglais.Pays : Grande Bretagne.Éditeur : Oxford : Clarendon Press, 1998Description : 1 vol. (XIV-237 p.) ; 24 cmISBN : 0198514875.Bibliographie : Bibliogr. p. [196]-232. Index.Sujet MSC : 76D05, Fluid mechanics -- Incompressible viscous fluids, Navier-Stokes equations
76-02, Fluid mechanics, Research exposition (monographs, survey articles)
76B47, Fluid mechanics -- Incompressible inviscid fluids, Vortex flows
35Q35, Partial differential equations -- Equations of mathematical physics and other areas of application, PDEs in connection with fluid mechanics
35Q30, Partial differential equations -- Equations of mathematical physics and other areas of application, Navier-Stokes equations
En-ligne : zentralblatt | MathSciNet
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The author presents various mathematical results on incompressible fluid models including density-dependent Navier-Stokes and Euler equations. A lot of results are new, and for each of these recent results the complete and self-contained proofs are given. The author does not demand from the reader technical prerequisites other than a basic training in nonlinear partial differential equations. Firstly, he recalls the fundamental equations modeling Newtonian fluids together with the basic approximated and simplified models. Then the most general existence results for density-dependent Navier-Stokes equations are presented along with the discussion on regularity and uniqueness, on stationary problems, and mentioning a number of open questions.

Deep analysis is applied to the classical Navier-Stokes equations for homogeneous fluids. Namely, the celebrated results of J. Leray concerning the global existence of weak solutions are deduced, and some recent regularity results in three dimensions are thoroughly treated as well. A great attention is devoted to the classical Euler equations. The author first recalls the state of the art of this model, then compares the multiple notions of weak solutions and shows their existence and uniqueness for the two-dimensional case. Next, he discusses the open question concerning a priori estimates in three dimensions and gives some examples. Finally, some approaches to proving global existence in a supergeneralized weak sense are studied, and density-dependent Euler equations and hydrostatic approximation models are analyzed. In the appendices various useful technical results are presented for the reader’s convenience. (Zentralblatt)

Bibliogr. p. [196]-232. Index

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