In this paper, we study some properties of special weak free (semi)hypergroups and we generalize the Nielsen-Schreier theorem for the class of special weak free hypergroups.
Jafarpour, M. and Chashiyani, A. (2013). On special weak free (semi)hypergroups. Journal of Hyperstructures, 2(1), 1-7. doi: 10.22098/jhs.2013.2550
MLA
Jafarpour, M. , and Chashiyani, A. . "On special weak free (semi)hypergroups", Journal of Hyperstructures, 2, 1, 2013, 1-7. doi: 10.22098/jhs.2013.2550
HARVARD
Jafarpour, M., Chashiyani, A. (2013). 'On special weak free (semi)hypergroups', Journal of Hyperstructures, 2(1), pp. 1-7. doi: 10.22098/jhs.2013.2550
CHICAGO
M. Jafarpour and A. Chashiyani, "On special weak free (semi)hypergroups," Journal of Hyperstructures, 2 1 (2013): 1-7, doi: 10.22098/jhs.2013.2550
VANCOUVER
Jafarpour, M., Chashiyani, A. On special weak free (semi)hypergroups. Journal of Hyperstructures, 2013; 2(1): 1-7. doi: 10.22098/jhs.2013.2550