Extension theory and Kreĭn-type resolvent formulas for nonsmooth boundary value problems

Vector-valued laplace transforms and cauchy problems

Wolfgang Arendt · Israel Journal of Mathematics · 1987 · 1.4K citations

Natural Sciences, Mathematics, Differential Equations +13

On the eigenfunctions and on the eigenvalues of general elliptic boundary value problems

Shmuel Agmon · Communications on Pure and Applied Mathematics · 1962 · 586 citations

Natural Sciences, Computational Engineering, Computational Mechanics +10

Generalized resolvents and the boundary value problems for Hermitian operators with gaps

Volodymyr Derkach, M. M. Malamud · Journal of Functional Analysis · 1991 · 548 citations

Natural Sciences, Physics, Differential Equations +12

Boundary problems for pseudo-differential operators

L. Boutet de Monvel · Acta Mathematica · 1971 · 546 citations · Full text

Natural Sciences, Mathematics, Physics +14

Extensions of symmetric operators and symmetric binary relations

Anatoly N. Kochubei · Mathematical Notes · 1975 · 187 citations

Natural Sciences, Computer Science, Mathematics +9