JAEM 2020, Vol 10, No 2 koleksiyonunu içerir. http://belgelik.isikun.edu.tr/xmlui/handleiubelgelik/2409 2026-04-14T14:07:17Z 2026-04-14T14:07:17Z Demiray, Hilmi El-Zahar, Essam Roshdy Shan, Shaukat Ali http://belgelik.isikun.edu.tr/xmlui/handleiubelgelik/6055 2024-07-18T14:32:33Z 2020-01-01T00:00:00Z

On progressive wave solution for non-planar KDV equation in a plasma with q-nonextensive electrons and two oppositely charged ions Demiray, Hilmi; El-Zahar, Essam Roshdy; Shan, Shaukat Ali In this paper, the ion-acoustic wave is investigated in a plasma with q-nonextensive electrons and two oppositely charged ions with varying masses. These parameters are found to modify the linear dispersion relation and nonlinear solitary structures. The reductive perturbation method is employed to derive modified Korteweg-de Vries (KdV) equation. To solve the obtained governing evolution equation, the exact solution in the planar geometry is obtained and used to obtain an analytical approximate progressive wave solution for the nonplanar evolution equation. The analytical approximate solution so obtained is compared with the numerical solution of the same nonplanar evolution equation and the results are presented in 2D and 3D figures. The results revealed that both solutions are in good agreement. A parametric study is carried out to investigate the effect of different physical parameters on the nonlinear evolution solution behavior. The obtained solution allows us to study the impact of various plasma parameters on the behavior of the nonplanar ion-acoustic solitons. The suitable application of the present investigations can be found in laboratory plasmas, where oppositely charged ions and nonthermal electrons dwell.

2020-01-01T00:00:00Z Sampathkumar, E. Roopa, S. V. Vidya, K. A. Sriraj, M. A. http://belgelik.isikun.edu.tr/xmlui/handleiubelgelik/2840 2024-05-07T21:36:17Z 2020-01-01T00:00:00Z

Partition energy of some trees and their generalized complements Sampathkumar, E.; Roopa, S. V.; Vidya, K. A.; Sriraj, M. A. Let G = (V, E) be a graph and Pk = {V1, V2, . . . , Vk} be a partition of V . The k-partition energy of a graph G with respect to partition Pk is denoted by EPk (G) and is defined as the sum of the absolute values of k-partition eigenvalues of G. In this paper we obtain partition energy of some trees and their generalized complements with respect to equal degree partition. In addition, we develop a matlab program to obtain partition energy of a graph and its generalized complements with respect to a given partition.

2020-01-01T00:00:00Z Sumathi, R. Sujatha, Ramalingam Sundareswaran, R. http://belgelik.isikun.edu.tr/xmlui/handleiubelgelik/2839 2024-05-07T21:36:17Z 2020-01-01T00:00:00Z

Fuzzy perfect equitable domination excellent trees Sumathi, R.; Sujatha, Ramalingam; Sundareswaran, R. A set D of vertices of a fuzzy graph G is a Perfect Dominating set if every vertex not in D is adjacent to exactly one vertex in D. In this paper, we discuss the concept of equitable excellent fuzzy graph, fuzzy equitable excellent dominating set ???. We introduce fuzzy perfect equitable excellent dominating set ?p(G) - set and then Construction of perfect equitable excellent fuzzy tree is discussed.

2020-01-01T00:00:00Z Şentürk, Gülsüm Yeliz Yüce, Salim http://belgelik.isikun.edu.tr/xmlui/handleiubelgelik/2838 2024-05-07T21:36:17Z 2020-01-01T00:00:00Z

On ruled non-degenerate surfaces with Darboux frame in Minkowski 3-space Şentürk, Gülsüm Yeliz; Yüce, Salim In this paper, ruled non-degenerate surfaces with respect to Darboux frame are studied. Characterization of them which are related to the geodesic torsion, the normal curvature and the geodesic curvature with respect to Darboux frame are examined. Furthermore, some special cases of non-null rulings are demonstrated according to Frenet frame {T, N, B} with Darboux frame {T, g, n}. Finally, the integral invariants of these surfaces are examined.

2020-01-01T00:00:00Z