TY  - JOUR
AU  - Yu. G. Shondin
TI  - Perturbations of elliptic operators on high codimension subsets and the extension theory on an indefinite metric space
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1995
SP  - 246
EP  - 292
VL  - 222
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1995_222_a9/
LA  - ru
ID  - ZNSL_1995_222_a9
ER  -