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Variational principles and Padé approximants. Resonances and phase shifts in potential scattering

✍ Scribed by C. Alabiso; P. Butera; G.M. Prosperi


Book ID
116139797
Publisher
Elsevier Science
Year
1972
Tongue
English
Weight
869 KB
Volume
42
Category
Article
ISSN
0550-3213

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📜 SIMILAR VOLUMES


Schwinger variational principle and Padé
✍ C.R Garibotti 📂 Article 📅 1972 🏛 Elsevier Science 🌐 English ⚖ 483 KB

We show that any [N, M] Pade approximant to the nonrelativistic scattering amplitude is equivalent to solving the scattering equations in a particular fmite subspace. It follows that the Pad& approximants can be obtained by using appropriate trial functions in the Schwinger variational principle. Th