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A new upper bound for the free energy of the Hubbard model based on the cluster approach
Author(s) -
Steeb W.H.,
Marsch E.
Publication year - 1975
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220690265
Subject(s) - physics , upper and lower bounds , energy (signal processing) , cluster (spacecraft) , mathematical physics , combinatorics , quantum mechanics , mathematics , computer science , mathematical analysis , programming language