martha@mat.uson.mx
luisrene.sanmartin@unison.mx
a213202325@unison.mx
© 2025 Martha Guzmán-Partida, Luis San Martín, Alejandro Villegas-Acuña, published by Slovak Academy of Sciences, Mathematical InstituteThis work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.