Layer potentials C*-algebras of domains with conical points
arXiv:1111.5754
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 Ωto be a domain with ramified cracks. We construct an explicit groupoid associated to the boundary of Ωand 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 conditions for the natural pseudodifferential operators affiliated to this C*-algebra.
30 pages