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Convergence of the diagonal operator-valued Padé approximants to the Dyson expansion |
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| Authors: | F J Narcowich G D Allen |
| Institution: | 1. Department of Mathematics, Texas A & M University, 77843, College Station, Texas, USA |
| Abstract: | The diagonal operator-valued Padé approximants formed from the Dyson expansion to the Schrödinger time-evolution operator are shown to converge everywhere in the complex plane, except on a certain subset of the real axis. |
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