About the Authors

Kavita Gangal

k.gangal@newcastle.ac.uk

Affiliation School of Mathematics and Statistics, Newcastle University, Newcastle upon Tyne, United Kingdom

Graeme R. Sarson

Affiliation School of Mathematics and Statistics, Newcastle University, Newcastle upon Tyne, United Kingdom

Anvar Shukurov

Affiliation School of Mathematics and Statistics, Newcastle University, Newcastle upon Tyne, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KG GRS AS. Performed the experiments: KG GRS. Analyzed the data: KG GRS AS. Wrote the paper: KG GRS AS.