Summability Methods in Perturbation Theory
- 1 March 1970
- journal article
- research article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 11 (3) , 822-824
- https://doi.org/10.1063/1.1665217
Abstract
The Mittag‐Leffler summability method is applied to operator‐valued analytic functions and a corresponding procedure for perturbation theory is derived, which has a bigger region of convergence. This region is explicitly described.Keywords
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