Abstract
We study the following stationary frequency dependent transport equation: (FORMULA PRESENTED), where Bu is the well-known Planck function appearing in astrophysics. We are able to describe the asymptotic behavior of f and T for x large, when s(v, T) is of the special form s(v, T) = s(v)k(T). Our method relies mainly on the monotonicity of the nonlinearity. The proof does not use any linearization of the equation; in particular, no smallness assumption on the data <p (in any sense) is required. RÉSUMÉ. Nous étudions l’équation de transport stationnaire avec dépendance en fréquence: (FORMULA PRESENTED). Lorsque s(v, T) est de la forme particulière s(v, T) = s(v)k(T), nous savons décrire le comportement asymptotique de f et T pour x grand. Notre méthode repose principalement sur la monotonie de la non-linéarité. La preuve n’utilise aucune linéarisation de l’équation; en particulier, nous n’avons besoin d’aucune hypothèse de petitesse (d’aucune sorte) sur la donnée Ã.
| Original language | English |
|---|---|
| Pages (from-to) | 125-143 |
| Number of pages | 19 |
| Journal | Transactions of the American Mathematical Society |
| Volume | 303 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 1987 |
Keywords
- Boundary layers (transfert radiatif
- Couches limites)
- Equations de transport non-linéaires
- Milne problem
- Nonlinear transport equations
- Problème de Milne
- Radiative transfer
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