20 citations · 26 across the 5 of their papers we have counts for
5 papers
Mapping Inter-City Trade Networks to Maximum Entropy Models using Electronic Invoice Data
Cesar I. N. Sampaio Filho, Rilder S. Pires, Humberto A. Carmona +1
We analyze the network of transactions among cities based on the electronic invoice database for the municipalities in the Ceará state, Brazil. It consists of approximately 3.7 bil…
Frustrated bearings
R. S. Pires, A. A. Moreira, H. J. Herrmann +1
In a bearing state, touching spheres (disks in two dimensions) roll on each other without slip. Here we frustrate a system of touching spheres by imposing two different bearing sta…
A universal approach for drainage basins
Erneson A. Oliveira, Rilder S. Pires, Rubens S. Oliveira +3
Drainage basins are essential to Geohydrology and Biodiversity. Defining those regions in a simple, robust and efficient way is a constant challenge in Earth Science. Here, we intr…
Confined Sandpile in two Dimensions: Percolation and Singular Diffusion
R. S. Pires, A. A. Moreira, H. A. Carmona +1
We investigate the properties of a two-state sandpile model subjected to a confining potential in two dimensions. From the microdynamical description, we derive a diffusion equatio…
Singular diffusion and criticality in a confined sandpile
R. S. Pires, A. A. Moreira, H. A. Carmona +1
We investigate the behavior of a two-state sandpile model subjected to a confining potential in one and two dimensions. From the microdynamical description of this simple model wit…