Krietenstein, Thorben
(Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)
We consider a strongly elliptic second order differential operator A together with a
degenerate boundary operator T of the form
T = φ0γ0 + φ1γ1, where γ0 and γ1 denote the evaluation of a function and its exterior ...