@ARTICLE{Anvariyeh, author = {Ghazavi, S. H. and Anvariyeh, S. M. and Mirvakili, S. and }, title = {$EL^2$–hyperstructures Derived from (Partially) Quasi Ordered Hyperstructures}, volume = {10}, number = {2}, abstract ={In this paper, we introduce a new class of (semi)hypergroup from a given (partially) quasi-ordered (semi)hypergroup as a generalization of {it "$El$--hyperstructures"}. Then, we study some basic properties and important elements belong to this class. }, URL = {http://ijmsi.ir/article-1-612-en.html}, eprint = {http://ijmsi.ir/article-1-612-en.pdf}, journal = {Iranian Journal of Mathematical Sciences and Informatics}, doi = {10.7508/ijmsi.2015.02.010}, year = {2015} }