2012
DOI: 10.2478/s11533-012-0066-y
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Layer potentials C*-algebras of domains with conical points

Abstract: To a domain with conical points Ω, we associate a natural C *algebra that is motivated by the study of boundary value problems on Ω, especially using the method of layer potentials. In two dimensions, we allow Ω to be a domain with ramified cracks. We construct an explicit groupoid associated to ∂Ω and use the theory of pseudodifferential operators on groupoids and its representations to obtain our layer potentials C * -algebra. We study its structure, compute the associated K-groups, and prove Fredholm condit… Show more

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Cited by 11 publications
(30 citation statements)
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“…the fibers of the domain map d are connected). There are analysis problems, however, when one is lead to nond-connected groupoids [25].…”
Section: 5mentioning
confidence: 99%
“…the fibers of the domain map d are connected). There are analysis problems, however, when one is lead to nond-connected groupoids [25].…”
Section: 5mentioning
confidence: 99%
“…As mentioned, the L p -theory for infinite straight cones and wedges was considered in [19]. Also for the infinite straight cone, the generalized eigensolutions to the transmission problem (3) were explicitly computed in [32,41,48] -these will be important in our determination of the spectrum of K Γ : E → E. For the more general type of infinite cone Γ = R + ω, where ω is a smooth curve on the sphere, the invertibility of K Γ − z on certain weighted Sobolev spaces has via Mellin convolutions been reduced to the invertibility of a parametric system of operators on ω [9,45].…”
Section: Introductionmentioning
confidence: 99%
“…The resulting differential operators Diff(V sc ) and the associated pseudodifferential ooperators are the SG-operators of [19,74,88,90,89] (called "scattering operators" in [59]). They can be obtained by considering the groupoid (14) G…”
mentioning
confidence: 99%