Global Existence and Extinction of Weak Solutions to a Class of Semiconductor Equations with Fast Diffusion Terms
We consider the transient drift-diffusion model with fast diffusion terms. This problem is not only degenerate but also singular. We first present existence result for general nonlinear diffusivities for the Dirichlet-Neumann mixed boundary value problem. Then, the extinction phenomenon of weak solu...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2008-10-01
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| Series: | Journal of Inequalities and Applications |
| Online Access: | http://dx.doi.org/10.1155/2008/961045 |