Abstract
The main purpose of this paper is to investigate ordered
-semihypergroups in the general terms of ordered -hyperideals. We intro-duce ordered (generalized) (m; n)--hyperideals in ordered -semihypergroups.
Then, we characterize ordered -semihypergroup by ordered (generalized) (0; 2)-
-hyperideals, ordered (generalized) (1; 2)-{hyperideals and ordered (general-
ized) 0-minimal (0; 2)--hyperideals. Furthermore, we investigate the notion of
ordered (generalized) (0; 2)-bi--hyperideals, ordered 0-(0; 2) bisimple ordered
-semihypergroups and ordered 0-minimal (generalized) (0; 2)-bi--hyperideals
in ordered -semihyperoups. It is proved that an ordered -semihypergroup
S with a zero 0 is 0-(0; 2)-bisimple if and only if it is left 0-simple.