About the Authors

Marek Bodnar

‡ These authors contributed equally to this work and their names were ordered alphabetically.

Affiliation Institute of Applied Mathematics and Mechanics, Faculty of Mathematics, Informatics and Mechanics, University of Warsaw, Banacha 2, 02-097 Warsaw, Poland

Pilar Guerrero

pguerrero@ucl.ac.uk

‡ These authors contributed equally to this work and their names were ordered alphabetically.

Affiliation Department of Mathematics, University College London, Gower Street, London WC1E 6BT, United Kingdom

Ruben Perez-Carrasco

‡ These authors contributed equally to this work and their names were ordered alphabetically.

Affiliation Department of Mathematics, University College London, Gower Street, London WC1E 6BT, United Kingdom

Monika J. Piotrowska

‡ These authors contributed equally to this work and their names were ordered alphabetically.

Affiliation Institute of Applied Mathematics and Mechanics, Faculty of Mathematics, Informatics and Mechanics, University of Warsaw, Banacha 2, 02-097 Warsaw, Poland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: MB PG RPC MJP. Contributed reagents/materials/analysis tools: MB PG RPC MJP. Wrote the paper: MB PG RPC MJP.