Estela
E-mail: estelahj [@] math.cinvestav.edu.mx
Office number 134 Ext. 6416

José Luis
E-mail: enriquez [@] math.cinvestav.mx
Office number 029 Ext. 3869

Óscar
E-mail: oscar [@] math.cinvestav. mx
Office number 135 Ext. 6454