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  • 1990-1994  (1)
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    Electronic Resource
    Electronic Resource
    Springer
    Inventiones mathematicae 111 (1993), S. 627-670 
    ISSN: 1432-1297
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Description / Table of Contents: Résumé Nous considérons le système des équations d'Euler isentropiques en dimension deux; pour des données initiales invariantes par rotation et perturbations de taille ε d'un état de repos, on établit un équivalent du temps de vieT ε de la solution classique (limɛ 2 T ɛ = τ * 2 ). De plus, on donne, pour $$t \leqq \frac{{A^2 }}{{\varepsilon ^2 }}(A〈 \tau _* )$$ une estimation de la vraie solution, en calculant la taille de son écart à une solution approchée construite dans un précédent travail.
    Notes: Summary We consider the 2D isentropic Euler equations; for rotationnally invariant data which are a perturbation of size ε of a rest state, we establish the first term asymptotic of the life spanT ε of the classical solution (limɛ 2 T ɛ = τ * 2 ). Moreover, we give, for $$t \leqq \frac{{A^2 }}{{\varepsilon ^2 }}(A〈 \tau _* )$$ an estimate of the true solution, by computing the size of its difference with an approximate solution obtained in a previous work.
    Type of Medium: Electronic Resource
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