About the Authors

Nigel C. Harrison

Affiliation Department of Mathematical Sciences, University of Liverpool, Liverpool, United Kingdom

Ruth Diez del Corral

bnvasiev@liverpool.ac.uk (BV); r.diez@cajal.csic.es (RDdC)

Affiliation Instituto Cajal, Consejo Superior de Investigaciones Científicas, Madrid, Spain

Bakhtier Vasiev

bnvasiev@liverpool.ac.uk (BV); r.diez@cajal.csic.es (RDdC)

Affiliation Department of Mathematical Sciences, University of Liverpool, Liverpool, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RDC BV. Performed the experiments: NCH RDC BV. Analyzed the data: NCH RDC BV. Contributed reagents/materials/analysis tools: RDC BV. Wrote the paper: NCH RDC BV.