Weakly Elliptic Systems, and Layer Potentials on UR Domains
摘要
In this chapter we collect some background results pertaining to weakly elliptic systems and boundary layer potentials. The discussion presented here is based on [GHA-V, Chapter 1]. To set the stage, fix n ∈ ℕ with n ≥ 2, along with some M ∈ N, and consider a second-order, homogeneous, constant complex coefficient, M × M system L in ℝn which may be written as