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arXiv 2404.09079math.AP
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具有非局部梯度的 Dirichlet 能量的紧性结果及其应用

Compactness results for a Dirichlet energy of nonlocal gradient with applications

Zhaolong Han, Tadele Mengesha, Xiaochuan Tian

AI总结:

本文证明了半空间非局部梯度有限Dirichlet能量函数空间的两个紧性结果,给出了核函数序列的充分条件保证渐近紧嵌入,并应用于证明一致Poincaré型不等式及非局部扩散与最优控制问题的收敛性。

摘要:

我们证明了具有半空间非局部梯度的有限 Dirichlet 能量函数空间的两个紧性结果。在每个结果中,我们提供了关于核函数序列的充分条件,以保证相关的非局部函数空间渐近紧嵌入到平方可积函数类中。此外,我们将证明非局部函数空间序列在适当意义下收敛到极限函数空间。作为应用,我们证明了半空间梯度算子序列的一致 Poincaré 型不等式。我们还应用紧性结果证明适当参数化的非局部各向异性扩散问题的收敛性。我们将为这类问题构造渐近相容的格式。另一个应用涉及非局部最优控制问题的收敛性和稳健离散化。

英文摘要:

We prove two compactness results for function spaces with finite Dirichlet energy of half-space nonlocal gradients. In each of these results, we provide sufficient conditions on a sequence of kernel functions that guarantee the asymptotic compact embedding of the associated nonlocal function spaces into the class of square-integrable functions. Moreover, we will demonstrate that the sequence of nonlocal function spaces converges in an appropriate sense to a limiting function space. As an application, we prove uniform Poincaré-type inequalities for sequence of half-space gradient operators. We also apply the compactness result to demonstrate the convergence of appropriately parameterized nonlocal heterogeneous anisotropic diffusion problems. We will construct asymptotically compatible schemes for these type of problems. Another application concerns the convergence and robust discretization of a nonlocal optimal control problem.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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