Boundary value problems as limits of problems in all space
Séminaire Équations aux dérivées partielles (Polytechnique), (1978-1979), Talk no. 3, 17 p.
@article{SEDP_1978-1979____A3_0,
     author = {Rauch, Jeffrey},
     title = {Boundary value problems as limits of problems in all space},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique)},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1978-1979},
     note = {talk:3},
     zbl = {0435.35052},
     mrnumber = {557514},
     language = {en},
     url = {http://www.numdam.org/item/SEDP_1978-1979____A3_0}
}
Rauch, J. Boundary value problems as limits of problems in all space. Séminaire Équations aux dérivées partielles (Polytechnique),  (1978-1979), Talk no. 3, 17 p. http://www.numdam.org/item/SEDP_1978-1979____A3_0/

[1] C. Bardos and J. Rauch: Maximal positive boundary value problems as limits of singular perturbation problems, (to appear). | MR 645322 | Zbl 0485.35010

[2] K.O. Friedrichs: Well posed problems of mathematical physics, mimeographed lecture notes, NYU.