Differential operators on Riemannian manifolds

Nonlocal elliptic boundary value problems

“…(If the system (A, B) satisfies conditions (i) and (ii), then there is a system {A', B') satisfying (i) and (ii) and such that (1) holds; see [2].) 2.…”

Various types of boundary conditions for elliptic equations

“…for general p , q together with some of the ideas set forth in the proof of 3) for all v E H2'(G). The regularity theory of [6] then shows us that 'W E C" (0).…”

Remarks on elliptic boundary value problems

“…For, by Lemma 6. 3 IITE~lI, 5 cllEullo 5 C l l l~l l s * Thus we may apply the Riesz theory for compIetely continuous operators in a Banach space. We therefore see that (6.10) has solutions for all f except for A in a denumerable set A with no finite limit points.…”