Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Rodrigo Bissacot is active.

Publication


Featured researches published by Rodrigo Bissacot.


Combinatorics, Probability & Computing | 2011

An improvement of the lovász local lemma via cluster expansion

Rodrigo Bissacot; Roberto Fernández; Aldo Procacci; Benedetto Scoppola

An old result by Shearer relates the Lovasz local lemma with the independent set polynomial on graphs, and consequently, as observed by Scott and Sokal, with the partition function of the hard-core lattice gas on graphs. We use this connection and a recent result on the analyticity of the logarithm of the partition function of the abstract polymer gas to get an improved version of the Lovasz local lemma. As an application we obtain tighter bounds on conditions for the existence of Latin transversal matrices.


Journal of Statistical Physics | 2010

Phase Transition in Ferromagnetic Ising Models with Non-uniform External Magnetic Fields

Rodrigo Bissacot; Leandro Cioletti

In this article we study the phase transition phenomenon for the Ising model under the action of a non-uniform external magnetic field. We show that the Ising model on the hypercubic lattice with a summable magnetic field has a first-order phase transition and, for any positive (resp. negative) and bounded magnetic field, the model does not present the phase transition phenomenon whenever lim inf hi>0, where


Communications in Mathematical Physics | 2015

Phase Transitions in Ferromagnetic Ising Models with Spatially Dependent Magnetic Fields

Rodrigo Bissacot; Marzio Cassandro; Leandro Cioletti; Errico Presutti

\mathbf{h}=(h_{i})_{i\in \mathbb{Z}^{d}}


Ergodic Theory and Dynamical Systems | 2014

On the existence of maximizing measures for irreducible countable Markov shifts: a dynamical proof

Rodrigo Bissacot; Ricardo Dos Santos Freire

is the external magnetic field.


Ergodic Theory and Dynamical Systems | 2018

Zero-temperature phase diagram for double-well type potentials in the summable variation class

Rodrigo Bissacot; Eduardo Garibaldi; Philippe Thieullen

In this paper we study the nearest neighbor Ising model with ferromagnetic interactions in the presence of a space dependent magnetic field that vanishes as


Communications in Mathematical Physics | 2018

Entropic Repulsion and Lack of the g-Measure Property for Dyson Models

Rodrigo Bissacot; Eric Ossami Endo; Aernout C. D. van Enter; Arnaud Le Ny


Annales Henri Poincaré | 2018

Contour Methods for Long-Range Ising Models: Weakening Nearest-Neighbor Interactions and Adding Decaying Fields

Rodrigo Bissacot; Eric Ossami Endo; Aernout C. D. van Enter; Bruno Kimura; Wioletta M. Ruszel

{|x|^{-\alpha}}


Letters in Mathematical Physics | 2017

Counting contours on trees

Noga Alon; Rodrigo Bissacot; Eric Ossami Endo


Journal of Statistical Physics | 2010

On the Convergence of Cluster Expansions for Polymer Gases

Rodrigo Bissacot; Roberto Fernández; Aldo Procacci

|x|-α,


Bulletin of The Brazilian Mathematical Society | 2010

Weak KAM methods and ergodic optimal problems for countable Markov shifts

Rodrigo Bissacot; Eduardo Garibaldi

Collaboration


Dive into the Rodrigo Bissacot's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Wioletta M. Ruszel

Delft University of Technology

View shared research outputs
Top Co-Authors

Avatar

Aldo Procacci

Universidade Federal de Minas Gerais

View shared research outputs
Top Co-Authors

Avatar

Eduardo Garibaldi

State University of Campinas

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge