Quotient Nearness d-algebras

Abstract BCK/BCI-algebra is a class of logical algebras that was defined by K. Iseki and S. Tanaka. BCK-algebras have a lot of generalizations. One of them is d-algebras. Near set theory which is a generalization of rough set theory. This theory is based on the...

Direct Products and Cuts of Soft Multigroups

Abstract In this paper, the concept of the direct product of a group is studied from the classical settings. We then propose the notion of the direct product of a soft multigroup and investigate some of its structural properties. Finally, the concept of upper and...

On the Riemann Problem

Abstract The Riemann problem is stated as follows: find an analytic in a domain D+ ∪ D− function Φ(z) such that (∗) Φ+(t) = G(t)Φ−(t) + g(t), t ∈ S. Here S is the boundary of D+, D− complements the complex plane to D+ ∪ S, the functions G = G(t) and g = g(t) belong to...

Neutrosophic Weakly Regular Semi Continuous Functions

Abstract In this paper, we introduce the concept of neutrosophic weakly regular semi continuous, neutrosophic regular semi q-neighbourhood in neutrosophic topological spaces. Also, we investigate the relationship among neutrosophic weakly regular semi continuous and...