Geodesic
Rearrangement and improvement of convergence of the born series in scattering theory on the basis of orthogonal projections
Teoretičeskaâ i matematičeskaâ fizika, Tome 27 (1976) no. 3, pp. 373-385 
V. I. Kukulin; V. N. Pomerantsev. Rearrangement and improvement of convergence of the born series in scattering theory on the basis of orthogonal projections. Teoretičeskaâ i matematičeskaâ fizika, Tome 27 (1976) no. 3, pp. 373-385. http://geodesic.mathdoc.fr/item/TMF_1976_27_3_a9/
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     author = {V. I. Kukulin and V. N. Pomerantsev},
     title = {Rearrangement and improvement of convergence of the born series in scattering theory on the basis of orthogonal projections},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {373--385},
     year = {1976},
     volume = {27},
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     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1976_27_3_a9/}
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Voir la notice de l'article provenant de la source Math-Net.Ru

A method is proposed for rearranging the Born series in scattering theory by means of the recently proposed [1] orthogonally projecting pseudopotentials (OPP). It is proved rigorously that even if the system contains bound states the rearranged Born series will converge for all negative and small positive energies. It is shown how scattering operators can be introduced accurately in the orthogonal subspaces. The OPP method is compared with the projection technique developed by Feshbach. Physical applications of the method are discussed.

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[3] V. I. Kukulin, V. N. Pomerantsev, V. G. Neudachin, YaF (to appear)

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