73 citations · 940 across the 53 of their papers we have counts for
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math-ph2005★ 19 cited
Mott transition in lattice boson models
Roberto Fernandez, Juerg Froehlich, Daniel Ueltschi
We use mathematically rigorous perturbation theory to study the transition between the Mott insulator and the conjectured Bose-Einstein condensate in a hard-core Bose-Hubbard model…
math-ph2005
The Falicov-Kimball model
Christian Gruber, Daniel Ueltschi
This is a review for Elsevier's Encyclopedia of mathematical physics.