A geometrical description for the essential spectra of a large class of Schrödinger operators is presented. Persson's formula is obtained as a corollary.
@article{1637,
title = {On a Theorem of Arne Persson},
journal = {CUBO, A Mathematical Journal},
volume = {6},
year = {2004},
language = {en},
url = {http://dml.mathdoc.fr/item/1637}
}
Beltiţă, Ingrid; Cornean, Horia D. On a Theorem of Arne Persson. CUBO, A Mathematical Journal, Tome 6 (2004) . http://gdmltest.u-ga.fr/item/1637/