Güncel Gönderiler: Işık Üniversitesi Yayınları
Toplam kayıt 1450, listelenen: 1061-1080
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Fourth-order accurate method based on half-step cubic spline approximations for the 1d time-dependent quasilinear parabolic partial differential equations
(Işık University Press, 2020)In this article, we discuss a fourth-order accurate scheme based on cubic spline approximations for the solution of quasilinear parabolic partial differential equations (PDE). The stability of the scheme is discussed using ... -
Degree equivalence graph of a graph
(Işık University Press, 2020)Given a set S and an equivalence relation R on S, one can define an equivalence graph with vertex set S. Given a graph with vertex set V , we can define an equivalence relation on V using the concept of degree of a vertex ... -
On a class of p(x)-Kirhhoff type problems with Robin boundary conditions and indefinite weights
(Işık University Press, 2020)In this paper, we consider a class of p(x)-Kirhhoff type problems with Robin boundary conditions and indefinite weights. Under some suitable conditions on the nonlinearities, we establish the existence of at least one ... -
Seidel borderenergetic graphs
(Işık University Press, 2020)A graph G of order n is said to be Seidel borderenergetic if its Seidel energy equals the Seidel energy of the complete graph Kn. Let G be graph on n vertices with two distinct Seidel eigenvalues. In this paper, we prove ... -
Locally and weakly contractive principle in bipolar metric spaces
(Işık University Press, 2020)In this article, we introduce concepts of (?, ?)-uniformly locally contractive and weakly contractive mappings, which are generalizations of Banach contraction mapping, in bipolar metric spaces. Also, we express the results ... -
Existence and uniqueness of an inverse problem for a wave equation with dynamic boundary condition
(Işık University Press, 2020)In this paper, an initial boundary value problem for a wave equation with dynamic boundary condition is considered. Giving an additional condition, a timedependent coefficient is determined and existence and uniqueness ... -
Subclasses of multivalent functions of complex order associated with sigmoid function and bernoulli lemniscate
(Işık University Press, 2020)In this present work, subclasses of multivalent functions of complex order associated with simple logistic sigmoid activation function and Bernoulli Lemniscate were investigated. Early few coefficient bounds, relevant ... -
Convolutions of a subclass of harmonic univalent mappings
(Işık University Press, 2020)The main object of this paper is to investigate the convolution of a subclass of harmonic univalent mappings which is denoted by fa and generalized harmonic univalent mapping which is denoted by Pc. We obtained Pc ∗ fa is ... -
Periodic and semi-periodic eigenvalues of hill's equation with symmetric double well potential
(Işık University Press, 2020)In this paper, some estimates are derived explicitly for periodic and semiperiodic eigenvalues of Hill’ s equation with symmetric double well potentials. Also, lengths of the instability intervals are obtained and bounds ... -
Even vertex odd mean labeling of transformed trees
(Işık University Press, 2020)Let G = (V;E) be a graph with p vertices and q edges. A graph G is said have an even vertex odd mean labeling if there exists a function f: V (G) →{0; 2; 4;:::; 2q} satisfying f is 1-1 and the induced map f*: E(G) → {1; ... -
Identities and relations on the hermite-based tangent polynomials
(Işık University Press, 2020)In this note, we introduce and investigate the Hermite-based Tangent numbers and polynomials, Hermite-based modified degenerate-Tangent polynomials, polyTangent polynomials. We give some identities and relations for these ... -
Numerical treatment of newell-whitehead-segel equation
(Işık University Press, 2020)In this paper, a comparative study of recently developed numerical methods in solving nonlinear Newell-–Whitehead—Segel equations is carried out. Results computed using Variational iteration method (VIM) are compared with ... -
Bounds for initial maclaurin coefficients for a new subclasses of analytic and M-fold symmetric BI-univalent functions
(Işık University Press, 2020)In the present paper, we introduce and study two new subclasses of the function class ?m consisting of analytic and m-fold symmetric bi-univalent functions in the open unit disk U. We establish upper bounds for the initial ... -
Hypersurfaces of a finsler space with deformed berwald-infinite series metric
(Işık University Press, 2020)The rationale of this paper is to study the Finslerian hypersurfaces of a Finsler space with the special deformed Berwald-Infinite series metric. Further examined under which condition, the Finslerian hypersurfaces of this ... -
On some integral inequalities for (s, m)-convex functions
(Işık University Press, 2020)A new identity has been handled in this paper. It allows to derive new inequalities referring to upper estimation of the Jensen functional in the class of (s, m)- convex functions. Also some applications for special means ... -
On the Chebyshev polynomial coefficient problem of bi-Bazilevi? functions
(Işık University Press, 2020)A function said to be bi-Bazilevi? in the open unit disk U if both the function and its inverse are Bazilevi? there. In this paper, we will study a newly constructed class of bi-Bazilevi? functions. Furthermore, we establish ... -
Bishop’s property (?) and weighted conditional type operators in k-quasi class A*n
(Işık University Press, 2020)An operator T is said to be k-quasi class A*n operator if T*? (|T??¹|²/??¹? |T*|² ) T? ? 0, for some positive integers n and k. In this paper, we prove that the k-quasi class A*n operators have Bishop, s property (?). Then, ... -
Further results of neutrosophic subalgebras in BCK/BCI-algebras based on neutrosophic points
(Işık University Press, 2020)In this paper, we investigate several properties of (?, ? ?q(kT ,kI ,kF ))-neutrosophic subalgebra, (?, q(kT ,kI ,kF ))-neutrosophic subalgebra, (q(kT ,kI ,kF ), ? ?q(kT ,kI ,kF ))-neutrosophic subalgebra, and (q(kT ,kI ... -
Approximation of periodic functions by sub-matrix means of their fourier series
(Işık University Press, 2020)Some results on approximation of periodic functions are extended in two directions: Improving the degree of approximation of periodic functions by sub-matrix means of its Fourier series and such degree is applicable for a ... -
A pre-subadditive fuzzy measure model and its theoretical interpretation
(Işık University Press, 2020)In this paper a particular set function which depends on densities of singletons with interdependence coefficients and which provides redundancy among singletons is considered. The Möbius representation of this function ...
