701 citations · 6k across the 55 of their papers we have counts for
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hep-th1995★ 108 cited
Non-linear finite -symmetries and applications in elementary systems
Jan de Boer, Frederique Harmsze, Tjark Tjin
In this paper it is stressed that there is no {\em physical} reason for symmetries to be linear and that Lie group theory is therefore too restrictive. We illustrate this with some…
cond-mat1995★ 76 cited
Exact ground states of generalized Hubbard models
Jan de Boer, Andreas Schadschneider
We present a simple method for the construction of exact ground states of generalized Hubbard models in arbitrary dimensions. This method is used to derive rigorous criteria for th…