Authors
Serpil Halici
Pamukkale University, Faculty of Arts and Sciences, Department of Mathematics, Denizli, Turkey
Gamaliel Cerda-Morales
Instituto de Matemáticas, Pontificia Universidad Católica de Valparaíso, Chile
© 2021 Serpil Halici, Gamaliel Cerda-Morales, published by Ovidius University of Constanta
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.