Geodesic
Perturbation theory, Borel summability, and asymptotics
Algebra i analiz, Tome 8 (1996) no. 1, pp. 145-159.

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We discuss some results in stability, perturbation theory, and summation methods applied to anharmonic oscillators and Stark problems. In particular, using also other technique, we show how to get exact results or asymptotic behavior and to relate different asymptotics in a rigorous way. 
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     author = {E. Caliceti and V. Grecchi and M. Maioli},
     title = {Perturbation theory, {Borel} summability, and asymptotics},
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     volume = {8},
     number = {1},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_1996_8_1_a6/}
}
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E. Caliceti; V. Grecchi; M. Maioli. Perturbation theory, Borel summability, and asymptotics. Algebra i analiz, Tome 8 (1996) no. 1, pp. 145-159. http://geodesic.mathdoc.fr/item/AA_1996_8_1_a6/