Geodesic
On asymptotic decay of the eigenfunctions of elliptic operators
Eurasian mathematical journal, Tome 1 (2010) no. 2, pp. 99-109

Voir la notice de l'article provenant de la source Math-Net.Ru

It is known that eigenfunctions of many elliptic operators such as Schrödinger operators decrease exponentially. It this paper we suggest a different idea of the proof of this fact. This idea is based on a special transformation $\Psi_\varepsilon$. 
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     author = {V. G. Kurbatov},
     title = {On asymptotic decay of the eigenfunctions of elliptic operators},
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     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EMJ_2010_1_2_a6/}
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V. G. Kurbatov. On asymptotic decay of the eigenfunctions of elliptic operators. Eurasian mathematical journal, Tome 1 (2010) no. 2, pp. 99-109. http://geodesic.mathdoc.fr/item/EMJ_2010_1_2_a6/