@article{01780535, title = {Isolation and simplicity for the first eigenvalue of the }, journal = {Abstract and Applied Analysis}, volume = {7}, year = {2002}, pages = {287-293}, doi = {10.1155/S108533750200088X}, zbl = {1065.35215}, language = {en}, url = {http://dml.mathdoc.fr/item/01780535} }
Martínez, Sandra; Rossi, Julio D. Isolation and simplicity for the first eigenvalue of the . Abstract and Applied Analysis, Tome 7 (2002) pp. 287-293. doi : 10.1155/S108533750200088X. http://gdmltest.u-ga.fr/item/01780535/