Sh-interval valued fuzzy ideal

In this paper, we introduce the concepts of S<inf>h</inf>-interval valued fuzzy left ideal, S<inf>h</inf>-interval valued fuzzy right ideal, S<inf>h</inf>-interval valued fuzzy ideal and extension principle of interval valued fuzzy set, investigate some properties and propose some theorems for homomorphic image and its inverse image on S<inf>h</inf>-interval valued fuzzy ideal. Finally, we investigate some properties on character of S<inf>h</inf>-interval valued fuzzy left(right) ideal.