The Generalized Davies Problem for Polyharmonic Operators
The Davies problem is connected with the maximal constants in Hardy-type inequalities. We study the generalizations of this problem to the Rellich-type inequalities for polyharmonic operators in domains of the Euclidean space. The estimates are obtained solving the generalized problem under an additional minimal condition on the boundary of the domain. Namely, for a given domain we assume the existence of two balls with sufficiently small radii and the following property: the balls have only a sole common point; one ball lies inside the domain and the other is disjoint from the domain.
Keywordspolyharmonic operator Rellich-type inequality distance
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- 8.Avkhadiev F. G., “Rellich inequalities for polyharmonic operators in domains on the plane,” Mat. Sb., vol. 209, no. 3, (2018).Google Scholar