There is no two dimensional analogue of Lamé's equation.
Knörrer, Horst ; Feldmann, Joel
Mathematische Annalen, Tome 293 (1992), p. 295-324 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1992-01-01
EUDML-ID : urn:eudml:doc:165004 
@article{GDZPPN002337347,
     title = {There is no two dimensional analogue of Lam\'e's equation.},
     journal = {Mathematische Annalen},
     volume = {293},
     year = {1992},
     pages = {295-324},
     zbl = {0763.58027},
     url = {http://dml.mathdoc.fr/item/GDZPPN002337347}
}

Knörrer, Horst; Feldmann, Joel. There is no two dimensional analogue of Lamé's equation.. Mathematische Annalen, Tome 293 (1992) pp. 295-324. http://gdmltest.u-ga.fr/item/GDZPPN002337347/