%0 Journal Article %A Lamberti, Pier Domenico %A Cristoforis, Massimo Lanza de %T An analyticity result for the dependence of multiple eigenvalues and eigenspaces of the laplace operator upon perturbation of the domain %J Glasgow mathematical journal %D 2002 %P 29-43 %V 44 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089502010157/ %R 10.1017/S0017089502010157 %F 10_1017_S0017089502010157