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arXiv 0706.4446math.AP
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Orlicz空间中一个带体积约束的最优化问题

An optimization problem with volume constrain in Orlicz spaces

Sandra Martinez

摘要:

考虑函数类$W^{1,G}(Ω)$中极小化$\int_ΩG(|\nabla u|) dx$的最优化问题,其中对$\{u>0\}$的体积有约束.函数$G$上的条件允许在0和$\infty$上有不同的行为。我们考虑一个惩罚问题,我们证明了,对于小值的惩罚参数,约束体积达到。用这种方法我们证明了每个解$u$是局部Lipschitz连续的,自由边界$\partial\{u>0\}\cap Ω$是光滑的。

英文摘要:

We consider the optimization problem of minimizing $\int_ΩG(|\nabla u|) dx$ in the class of functions $W^{1,G}(Ω)$, with a constrain on the volume of $\{u>0\}$. The conditions on the function $G$ allow for a different behavior at 0 and at $\infty$. We consider a penalization problem, and we prove that for small values of the penalization parameter, the constrained volume is attained. In this way we prove that every solution $u$ is locally Lipschitz continuous and that the free boundary, $\partial\{u>0\}\cap Ω$, is smooth.

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