TY  - INPR
A1  - Tarkhanov, Nikolai Nikolaevich
T1  - Root functions of elliptic boundary problems in domains with conic points of the boundary
N2  - We prove the completeness of the system of eigen and associated functions (i.e., root functions) of an elliptic boundary value problem in a domain whose boundary is a smooth surface away from a finite number of points, each of them possesses a neighbourhood where the boundary is a conical surface.
T3  - Preprint - (2005) 07 
Y1  - 2009
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/2814
UR  - https://nbn-resolving.org/urn:nbn:de:kobv:517-opus-29812
ER  -