About the Authors

Botond Molnár

Affiliation Faculty of Physics, Babeş-Bolyai University, Cluj-Napoca, RO-400084, Romania

Mária Ercsey-Ravasz

ercsey.ravasz@phys.ubbcluj.ro

Affiliation Faculty of Physics, Babeş-Bolyai University, Cluj-Napoca, RO-400084, Romania

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: BM. Wrote the paper: MER. Performed the computer simulations: BM. Designed the mathematical model: MER. Proved the theorems: MER.