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math.PR2004
How non-Gibbsianness helps a metastable Morita minimizer to provide a stable free energy
Christof Kuelske
We analyze a simple approximation scheme based on the Morita-approach for the example of the mean field random field Ising model where it is claimed to be exact in some of the phys…
math.PR2003
Gibbs properties of the fuzzy Potts model on trees and in mean field
Olle Haeggstroem, Christof Kuelske
We study Gibbs properties of the fuzzy Potts model in the mean field case (i.e on a complete graph) and on trees. For the mean field case, a complete characterization of the set of…
math.PR2002
Variational principle for generalized Gibbsian measures
Christof Kuelske, Arnaud Le Ny, Frank Redig
We study the thermodynamic formalism for generalized Gibbs measures, such as renormalization group transformations of Gibbs measures or joint measures of disordered spin systems. W…