About the Authors

Eduardo Liz

Contributed equally to this work with: Eduardo Liz, Alfonso Ruiz-Herrera

eliz@dma.uvigo.es

Affiliation Departamento de Matemática Aplicada II, Universidad de Vigo, 36310 Vigo, Spain

Alfonso Ruiz-Herrera

Contributed equally to this work with: Eduardo Liz, Alfonso Ruiz-Herrera

Affiliation Departamento de Matemática Aplicada II, Universidad de Vigo, 36310 Vigo, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EL AR. Performed the experiments: EL AR. Analyzed the data: EL AR. Contributed reagents/materials/analysis tools: EL AR. Wrote the paper: EL AR.