24 citations · 48 across the 4 of their papers we have counts for
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cond-mat.dis-nn2006★ 24 cited
Phase diagram of an Ising model with competitive interactions on a Husimi tree and its disordered counterpart
Massimo Ostilli, Farrukh Mukhamedov, José F. F. Mendes
We consider an Ising competitive model defined over a triangular Husimi tree where loops, responsible for an explicit frustration, are even allowed. After a critical analysis of th…
cond-mat.dis-nn2006★ 9 cited
Exact ground state for a class of matrix Hamiltonian models: quantum phase transition and universality in the thermodynamic limit
Massimo Ostilli, Carlo Presilla
By using a recently proposed probabilistic approach, we determine the exact ground state of a class of matrix Hamiltonian models characterized by the fact that in the thermodynamic…