We introduce the notion of $m$-polynomial harmonically convex interval-valued function. A relationship between a given function and its component real-valued functions is pointed out. Moreover, some new Hermite--Hadamard type results are established for this class functions. Our complement extend existing in literature. By taking $m\geq 2$, we derive loads interesting inclusions. anticipate tha...

In [8] Markov interval maps were introduced and it was shown that any two inverse limits with Markov interval bonding maps with the same pattern were homeomorphic. In this article we introduce generalized Markov interval functions, which are a generalization of Markov interval maps to set-valued functions, and show that any two generalized inverse limits with generalized Markov interval bonding...

The purpose of this study is to define a new class harmonically convex functions, which known as left and right interval-valued function (LR-

In this paper, (α,β)-interval valued set is studied. The order relation on defined. It shown that complete lattice by giving the definitions of infumum and supremum these sets. Then, negation function sets introduced. 
 With help ,(α,β)-interval intuitionistic fuzzy are fundamental algebraic properties examined. level subsets given. Some propositions examples

In this paper, the problem of measuring the degree of inclusion and similarity measure for two   interval-valued intuitionistic  fuzzy sets is considered. We propose inclusion and similarity measure by using  order on interval-valued intuitionistic fuzzy sets connected with lexicographical order. Moreover, some properties of inclusion and similarity measure and some correlation, between them an...