## Abstract In this paper, we study discontinuous solutions of a partial differential equation of strongly degenerate parabolic type. A notion of weak solutions of __BV__ class is proposed, and existence and uniqueness results are obtained.
Asymptotic profile of solutions of a singular diffusion equation as t→∞
✍ Scribed by Shu-Yu Hsu
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 97 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0362-546X
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✦ Synopsis
u(x; 0) = u 0 (x) ∀x ∈ R 2 (0.1) which arises naturally in many situations. Lions and Toscani [19] have shown that (0.1) arises as the singular limit for ÿnite velocity Boltzmann kinetic models and Kurtz [17] have shown that it arises as the limiting density distribution of two gases moving against each other and obeying the Boltzmann equation. Recently, Hui [16] has shown that (0.1) also arises as the singular limit of the porous medium equation
📜 SIMILAR VOLUMES
In this paper, we study the similar entropy solutions of the singular diffusion equation, ## Ou O f Ou \ at -~ with ~b(s) = s/~i'-'+~. These kinds of solutions have nonvertical jump lines. We establish the existence and uniqueness and also discuss some properties of these kinds of solutions.