Volume 4 (2020)

OMS-Vol. 4 (2020), Issue 1, pp. 86 – 97 Open Access Full-Text PDF

Abstract: We concentrate on investigating the existence of positive solutions for the system of second order singular semipositone m-point boundary value problems in this article. We emphasize that the nonlinear term may take a negative value and be singular. By the properties of Green’s function and applying fixed point theorem in cones, existence results for positive solutions are obtained. Also, we provide an example to make our results clear and easy for readers to understand the existence result.

OMS-Vol. 4 (2020), Issue 1, pp. 78 – 85 Open Access Full-Text PDF

Abstract: Fractional integral operators are very useful in mathematical analysis. This article investigates bounds of generalized fractional integral operators by exponentially \(m\)-convex functions. Furthermore, a Hadamard type inequality have been analyzed and, special cases of established results have been discussed.

OMS-Vol. 4 (2020), Issue 1, pp. 74 – 77 Open Access Full-Text PDF

Abstract: In this paper we characterize a bounded vector measure on Lie compact group \(G = GL(2;\mathbb{R})\). It is a question of considering a bounded vector measure \(m\) defined from \(K(G;E)\) the space of \(E\) valued functions with compact support on \(G\) and giving its integral form.

OMS-Vol. 4 (2020), Issue 1, pp. 63 – 73 Open Access Full-Text PDF

Abstract: In this research work, we applied some solving techniques on Travelling salesman problem (TSP) and Capaciated Vehicle routing problem (CVRP) which are some of the variants of vehicle routing problem. For each of the considered problem, Branch-and-cut was applied on TSP and Column generation technique was used on CVRP. We obtained optimal solution and tour. Hence, these methods can be used to solve similar problem for optimal solution.

OMS-Vol. 4 (2020), Issue 1, pp. 56 – 62 Open Access Full-Text PDF

Abstract: In this paper, we investigate the equivalence between the Backlund transformation of Riccati equation method and the extended tanh-function method. It is proved that the two methods are equivalent when applying them to partial differential equations and differential-difference equations. Two examples are introduced to justify our results.

OMS-Vol. 4 (2020), Issue 1, pp. 48 – 55 Open Access Full-Text PDF

Abstract: In this paper, we will determine the 3-total edge product cordial (3-TEPC) labeling. We study certain classes of graphs namely tadpole, book and flower graphs in the context of 3-TEPC labeling.

OMS-Vol. 4 (2020), Issue 1, pp. 34 – 47 Open Access Full-Text PDF

Abstract: In this paper, the notion of some algebraic properties of fundamental group of intuitionistic fuzzy topological spaces (IFTSs) are introduced. We give a necessary and sufficient condition for a fundamental group of IFTSs to be abelian, a necessary and sufficient conditions for a subset of fundamental group of IFTSs to be subgroup, a necessary and sufficient condition for a subgroup of fundamental group of IFTSs to be normal and a necessary and sufficient condition for an element to be in a center of fundamental group of IFTSs. We also describe the set of centralizers of an element in a fundamental group of IFTSs and the quotient fundamental group of IFTSs.

OMS-Vol. 4 (2020), Issue 1, pp. 27 – 33 Open Access Full-Text PDF

Abstract: In this paper, a coupled fixed point theorem for maps satisfying rational type contractive condition in the perspective of dislocated quasi b-metric space have been formed and the existence and uniqueness of a couple fixed point have been proved. Our result improves and generalizes comparable results in the literature.

OMS-Vol. 4 (2020), Issue 1, pp. 23 – 26 Open Access Full-Text PDF

Abstract: This article maintains that the impossibility of trisection is based on a cubic polynomial whose trigonometric content is not clear; or, the impossibility may be referring to one particular trisection method even if the cubic equation does constitute the equation of trisection. It next proceeds to trisection “indirectly” by attempting bto construct one of the two trisectors on the basis of reductio ad absurdum.

OMS-Vol. 4 (2020), Issue 1, pp. 18 – 22 Open Access Full-Text PDF

Abstract: A graph \(\Gamma\) (simple, finite, undirected) with an \(\Omega\)-covering has an \((\alpha,\delta)\)-\(\Omega\)-antimagic labeling if the weights of all subgraphs \(\Omega\) of graph \(\Gamma\) constitute an arithmetic progression with the common difference \(\delta\). Such a~graph is called super \((\alpha,\delta)\)-\(\Omega\)-antimagic if \(\nu(V(\Gamma))= \{ 1,2,3,\dots,|V(\Gamma)|\}\). In the present paper, the cycle coverings of subdivision of fan graphs has been considered and results are proved for several differences.