On completeness of root functions of elliptic boundary problems in a domain with conical points on the boundary

Youri V. Egorov; Vladimir A. Kondratiev; Bert-Wolfgang Schulze

Comptes Rendus. Mathématique, Volume 334 (2002) p. 649-654

On the Lagrange problem about the strongest column

Youri V. Egorov

Comptes Rendus. Mathématique, Volume 335 (2002) p. 997-1002