Geodesic
Bound states in a noncentral potential:
Teoretičeskaâ i matematičeskaâ fizika, Tome 82 (1990) no. 1, pp. 90-100 
A. A. Belov; Yu. E. Lozovik. Bound states in a noncentral potential:. Teoretičeskaâ i matematičeskaâ fizika, Tome 82 (1990) no. 1, pp. 90-100. http://geodesic.mathdoc.fr/item/TMF_1990_82_1_a10/
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     title = {Bound states in~a~noncentral potential:},
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     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1990_82_1_a10/}
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Voir la notice de l'article provenant de la source Math-Net.Ru

A new approach to the problem of the critical coupling constant $\lambda_c$ (critical binding) is proposed. The case of noncentral potentials is investigated. The critical coupling constant for the ground state is calculated by means of the $\varepsilon$ expansion ($\varepsilon=(d-2)/2$, where $d$ is the dimension of space), and the corrections to the semiclassical asymptotic behavior of the number of bound states are found.

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