Stability and instability results in a model of Fermi acceleration (2008)
We consider the static wall approximation to the dynamics of a particle bouncing on a periodically oscillating infinitely heavy plate while subject to a potential force. We assume the case of a...
We obtain the exact renormalization map and plots of Lee-Yang and Fisher zeros distributions for Potts models on a number of hierarchical lattices: the diamond hierarchical lattice, a lattice we call...
Potts models on hierarchical lattices and Renormalization Group dynamics (2007)
De Simoi, Jacopo, Marmi, Stefano
We prove that the generator of the renormalization group of Potts models on hierarchical lattices can be represented by a rational map acting on a finite-dimensional product of complex projective...
Dinamica del gruppo di rinormalizzazione dei modelli di Potts gerarchici (2005)
Oggetto di questa tesi è il comportamento analitico delle funzioni termodinamiche di sistemi particolari, denominati modelli gerarchici. Si tratta di modelli di Potts su reticoli che sono...