A singular limit problem for the porous medium equation
β Scribed by Paul E Sacks
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 449 KB
- Volume
- 140
- Category
- Article
- ISSN
- 0022-247X
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π SIMILAR VOLUMES
In this paper, we study the free-boundary problem associated with a singular diffusion equation. An entropy equality derived by the authors for BV solutions in an earlier paper is used in its formulation. Existence, uniqueness, and regularity results are obtained.
The problem of optimal fixed-order dynamic compensation for the singular LQG problem is considered. Necessary conditions characterizing the optimal compensator for the case involving both singular measurement noise and singular control weighting are given. The solution consists of a set of two algeb