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An optional service Markovian queue with working disasters and customer’s impatience
(Işık University Press, 2023-04)
In this paper, we develop a new class of Markov model with working disasters, second optional service, and reneging of customers. The disasters can occur during regular busy period. Whenever a disaster occurs, server ...
On some novel results for C-weak-fuzzy contractions
(Işık University Press, 2023-04)
This article implements the idea of introducing the concept of C-weak-fuzzy contraction mapping in the framework of fuzzy cone metric spaces, and deriving some unique common fixed point results. A nontrivial example is ...
Equilibrium problem for a thermoelastic Kirchhoff–Love plate with a delaminated rigid inclusion
(Işık University Press, 2023-04)
A new variational problem on the equilibrium of a thermoelastic heterogeneous Kirchhoff–Love plate is considered in a domain with a cut. The cut corresponds to an interfacial crack located on a part of the boundary of a ...
Existence, uniqueness and stability results for fractional nonlinear Volterra-Fredholm integro-differential equations
(Işık University Press, 2023-04)
In this paper, we establish some new conditions for the existence and uniqueness of solutions for a class of nonlinear Caputo fractional Volterra-Fredholm integrodifferential equations with integral boundary conditions. ...
Roman and inverse roman domination in network of triangles
(Işık University Press, 2023-04)
In graph G (V, E), a function f : V ? {0, 1 2} is said to be a Roman Dominating Function (RDF). If ?u ? V, f(u) = 0 is adjacent to at least one vertex v ? V such that f(v) = 2. The weight of f is given by w(f) = P v?V f(v). ...
F-index for fuzzy graph with application
(Işık University Press, 2023-04)
Different types of topological index of a graph have many applications and many results are available for crisp graphs. But in many practical applications it is seen that many situations cannot be modeled using crisp graphs. ...
Generalized contractive mappings on quasimetric spaces
(Işık University Press, 2023-04)
In this paper, we introduce a new class of generalized contractive mappings to establish a fixed point theorem for this class of mappings in complete quasimetric spaces. In fact, at first we present the notion of ordered ...
Parallel critical graphs
(Işık University Press, 2023-04)
Let G1 and G2 be two undirected graphs. Let u1, v1 ? V ( G1 ) and u2, v2 ? V ( G2 ). A parallel composition forms a new graph H that combines G1 and G2 by contracting the vertices u1 with u2 and v1 with v2. A new kind of ...
Fuzzy semi-essential submodules and fuzzy semi-closed submodules
(Işık University Press, 2023-04)
In this paper, we prove some properties of fuzzy semi-essential submodules and fuzzy semi-closed submodules.
Soft somewhat continuous and soft somewhat open functions
(Işık University Press, 2023-04)
In this paper, we define a soft somewhat open set using the soft interior operator. We study main properties the class of soft somewhat open sets that is contained in the class soft somewhere dense sets. Then, we introduce ...