TY  - JOUR
AU  - Yu. G. Shondin
TI  - Perturbation of differential operators on high-codimension manifold and the extension theory for symmetric linear relations in an indefinite metric space
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1992
SP  - 466
EP  - 472
VL  - 92
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/TMF_1992_92_3_a8/
LA  - en
ID  - TMF_1992_92_3_a8
ER  -