About the Authors

Roberto H. Schonmann

rhs@math.ucla.edu

Affiliation Department of Mathematics, University of California Los Angeles, Los Angeles, California, United States of America

Renato Vicente

Affiliation Department of Applied Mathematics, Instituto de Matemática e Estatstica, Universidade de São Paulo, São Paulo, SP, Brazil

Nestor Caticha

Affiliation Departamento de Física Geral, Instituto de Física, Universidade de São Paulo, São Paulo, SP, Brazil

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RHS RV NC. Performed the experiments: RV. Analyzed the data: RHS RV NC. Contributed reagents/materials/analysis tools: RV NC. Wrote the paper: RHS.