This notice is to highlight that the corresponding author was incorrectly listed as having only one affiliation: ‘Université de Neuchâtel, Institut de Mathématiques, Rue Emile-Argand 11, CH-2000 Neuchâtel, Switzerland; E-mail: [email protected] (corresponding author).’
This affiliation should have been listed as the corresponding author’s second, following their main one: ‘École Polytechnique Fédérale de Lausanne, Route Cantonale, 1015 Lausanne, Switzerland; E-mail: [email protected] (corresponding author).’
The authors apologise for this error.