Single and Double Layer Potentials on Domains with Conical Points I: Straight Cones

Yu Qiao, Victor Nistor

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Let Ω = ℝ +ω be an open straight cone in ℝ n, n ≥ 3, where ω ⊂ S n-1 is a smooth subdomain of the unit sphere. Denote by K and S the double and single layer potential operators associated to Ω and the Laplace operator Δ. Let r be the distance to the origin. We consider a natural class of dilation invariant operators on ∂Ω, called Mellin convolution operators and show that K a:= r aKr -a and S b:= r b-1/2Sr -b-1/2 are Mellin convolution operators for a ⊂ (-1, n-1) and b ⊂ (1/2, n-3/2). It is known that a Mellin convolution operator T is invertible if, and only if, its Mellin transform T(λ) is invertible for any real λ. We establish a reduction procedure that relates the Mellin transforms of K a and S b to the single and, respectively, double layer potential operators associated to some other elliptic operators on ω, which can be shown to be invertible using the classical theory of layer potential operators on smooth domains. This reduction procedure thus allows us to prove that 1/2 ± K and S are invertible between suitable weighted Sobolev spaces. A classical consequence of the invertibility of these operators is a solvability result in weighted Sobolev spaces for the Dirichlet problem on Ω.

Original languageEnglish (US)
Pages (from-to)419-448
Number of pages30
JournalIntegral Equations and Operator Theory
Issue number3
StatePublished - Mar 2012

All Science Journal Classification (ASJC) codes

  • Analysis
  • Algebra and Number Theory


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