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The self-consistent diagram approximation for lattice systems

✍ Scribed by G.S. Bokun; Ya.G. Groda; V.V. Belov; C. Uebing; V.S. Vikhrenko

Publisher
Springer
Year
2000
Tongue
English
Weight
220 KB
Volume
15
Category
Article
ISSN
1434-6036

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## Abstract A theorem is presented that characterizes approximate states and truncated operator manifolds associated with self‐consistent approximate propagators. This theorem establishes a natural relationship between Hermiticity, stationarity, nonredundance and completeness of operator manifolds,