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Toplam kayıt 101, listelenen: 31-40
Some new results on integer additive set-valued signed graphs
(Işık University Press, 2019)
Let X denotes a set of non-negative integers and P(X) be its power set. An integer additive set-labeling (IASL) of a graph G is an injective set-valued function f : V (G) → P(X) − {∅} such that the induced function f+ : ...
Existence of nonoscillatory solutions for second-order nonlinear neutral differential equations with variable delays
(Işık University Press, 2019)
In this work, an attempt is made to discuss the existence of nonoscillatory solutions of second order nonlinear neutral differential equations with variable delays. The main tools are Lebesgue’s dominated convergence theorem ...
On the spectra of cycles and paths
(Işık University Press, 2019)
Energy of a graph was defined by E. Hückel as the sum of absolute values of the eigenvalues of the adjacency matrix during the search for a method to obtain approximate solutions of Schr¨odinger equation which include the ...
Some inequalities for B⁻¹ -convex functions via fractional integral operator
(Işık University Press, 2019)
In this paper, B⁻¹ -convexity which is an abstract convexity type is studied. In addition, some new Hermite-Hadamard type inequalities for B⁻¹ -convex functions involving Riemann-Liouville type integral operators that are ...
One-dimensional cutting stock problem with divisible items: a case study in steel industry
(Işık University Press, 2019)
This paper considers the one-dimensional cutting stock problem (1D-CSP) with divisible items, which arises in the steel industries. While planning the steel cutting operations, each item can be divided into smaller pieces, ...
Geometric function optimization subject to mixed fuzzy relation inequality constraints
(Işık University Press, 2019)
In this paper, the mixed fuzzy relation geometric programming problem is considered. The Mixed Fuzzy Relation Inequality (MFRI) system is an importance extension of FRI. It is shown that its feasible domain is non-convex ...
Exponential domination of tree related graphs
(Işık University Press, 2019)
The well-known concept of domination in graphs is a good tool for analyzing situations that can be modeled by networks. Although a vertex in the graph can exert influence on, or dominate, all vertices in its immediate ...
Harmonious coloring of multicopy of complete graphs
(Işık University Press, 2019)
In this paper, we find the harmonious chromatic number of multicopy of complete graphs Kn. We generalize the result χH ((n + 2)Kn) > n + 1 2 ! given in [8] and also further improve the result to χH((n + 2)Kn) ≥ n + 1 2 ! ...
Numerical solution of time-fractional order Fokker-Planck equation
(Işık University Press, 2019)
In this article, new iterative method (NIM) is employed to find the numerical solution of linear and nonlinear time-fractional order Fokker-Planck equation (FPE), which is applied in many fields of engineering and applied ...
Zagreb indices and multiplicative Zagreb indices of double graphs of subdivision graphs
(Işık University Press, 2019)
Let G be a simple graph. The subdivision graph and the double graph are the graphs obtained from a given graph G which have several properties related to the properties of G. In this paper, the first and second Zagreb and ...