Polyharmonic capacity and Wiener test of higher order

• 成果类型: Article
• 署名作者: Mayboroda, Svitlana; Maz'ya, Vladimir
• 署名单位: University of Minnesota System; University of Minnesota Twin Cities; Linkoping University; Peoples Friendship University of Russia
• 刊物名称: INVENTIONES MATHEMATICAE
• ISSN/ISSBN: 0020-9910
• DOI: 10.1007/s00222-017-0756-y
• 发表日期: 2018
• 页码: 779-853
• 关键词: partial-differential-equations; linear elliptic-equations; biharmonic equation; lipschitz-domains; dirichlet problem; criterion; Operators

摘要

In the present paper we establish the Wiener test for boundary regularity of the solutions to the polyharmonic operator. We introduce a new notion of polyharmonic capacity and demonstrate necessary and sufficient conditions on the capacity of the domain responsible for the regularity of a polyharmonic function near a boundary point. In the case of the Laplacian the test for regularity of a boundary point is the celebrated Wiener criterion of 1924. It was extended to the biharmonic case in dimension three by Mayboroda and Maz'ya (Invent Math 175(2):287-334, 2009). As a preliminary stage of this work, in Mayboroda and Maz'ya (Invent Math 196(1):168, 2014) we demonstrated boundedness of the appropriate derivatives of solutions to the polyharmonic problem in arbitrary domains, accompanied by sharp estimates on the Green function. The present work pioneers a new version of capacity and establishes the Wiener test in the full generality of the polyharmonic equation of arbitrary order.