Yeni eklenenler

On the generalized vector equilibrium problem

Omidi, Mohammad Reza (Işık University Press, 2020)

In this paper, first a maximal element lemma is proven, then by using properties of the nonlinear function, an existence theorem for generalize vector equilibirium problems is proven. Finally, an example in order to support ...

Multiplicity results to a fourth-order boundary value problem for a Sturm-Liouville type equation

Ghazvehi, Ahmad; Afrouzi, Ghasem Alizadeh (Işık University Press, 2020)

We establish the existence of at least three distinct weak solutions for a fourth-order Sturm-Liouville type problem under appropriate hypotheses. Our main tools are based on variational methods and some critical points ...

On fuzzy quotient BCK-algebras

Goraghan, Simin Saidi (Işık University Press, 2020)

In this paper, by considering the concept of fuzzy congruence in some algebraic structures, we specially study fuzzy congruence in BCK-algebras. We prove that there is a bijection between the set of fuzzy ideals and the ...

On the numerical solution to optimal control problems with non-local conditions

Aida-zade, Kamil; Abdullayev, Vagif (Işık University Press, 2020)

Optimal control problems involving non-separated multipoint and integral conditions are investigated. For numerical solution to the problem, we propose to use first order optimization methods with application of the formulas ...

Multiple positive solutions for a system of fractional higher-order infinite-point boundary value problems

Rao, Allaka Kameswara (Işık University Press, 2020)

In this article, we establish some results on the existence of multiple positive solutions for a system of nonlinear fractional order infinite-point boundary value problems. The main tool is a fixed point theorem of the ...

Quantum spectral clustering through a biased phase estimation algorithm

Daskin, Ammar (Işık University Press, 2020)

In this paper, we go through the theoretical steps of the spectral clustering on quantum computers by employing the phase estimation and the amplitude amplification algorithms. We discuss circuit designs for each step and ...

Some fixed point results in the generalized convex metric spaces

Doğan, Kadri; Gürsoy, Faik; Karakaya, Vatan (Işık University Press, 2020)

In this study, we introduce a new three step iteration process and show that the iteration process converges to the unique fixed point by two theorems under different conditions of contractive mappings on the generalized ...

Edge-Zagreb indices of graphs

Yamaç, Çilem; Öz, Mert Sinan; Cangül, İsmail Naci (Işık University Press, 2020)

The algebraic study of graph matrices is an important area of Graph Theory giving information about the chemical and physical properties of the corresponding molecular structure. In this paper, we deal with the edge-Zagreb ...

Some bounds on the Seidel energy of graphs

Kaya Gök, Gülistan (Işık University Press, 2019)

This paper includes new bounds concepting the Seidel incidence energy. In the sequel, improved bounds about the Seidel Laplacian energy concerned with the edges and the vertices are established.

Approximation by Stancu type Jakimovski-Leviatan-Păltănea operators

Kumar, Alok; Rai, Vandana (Işık University Press, 2019)

The present article deals with the general family of summation-integral type operators. Here, we introduce the Stancu type generalization of the Jakimovski-LeviatanPăltănea operators and study Voronovskaja-type asymptotic ...

On hubtic and restrained hubtic of a graph

Khalaf, Shadi Ibrahim; Mathad, Veena (Işık University Press, 2019-05-07)

In this article, the hubtic number of the join and corona of two connected graphs is computed. The restrained hubtic number ξr(G) of a graph G is the maximum number such that we can partition V (G) into pairwise disjoint ...

Degree of approximation by product (Ṅ, pn, qn)(E, q) summability of fourier serıes of a signal belonging to Lip(α, r)-class

Parida, Priyadarsini; Paikray, Susanta Kumar; Dash, Minaskhi; Misra, Umakanta (Işık University Press, 2019)

Approximation of periodic functions by different linear summation methods have been studied by many researchers. Further, for sharpening the estimate of errors out of the approximations several product summability methods ...

Randic type SDI index of certain graphs

Prakasha, Kunkanadu Nanjundappa; Kiran, K.; Rakshith, S. (Işık University Press, 2019)

In this paper, we calculate the Randic type SDI index of double graphs, subdivision graphs and complements of some standard graphs.

On the estimations of the small eigenvalues of non-self-adjoint Sturm-Liouville operators

Nur, Cemile; Veliev, Oktay (Işık University Press, 2019)

We give a new approach for the estimations of the eigenvalues of non-selfadjoint Sturm-Liouville operators with regular but not strongly regular boundary conditions. Moreover we give the error estimations.

Some inclusion relations between various subclasses of planar harmonic mappings involving confluent hypergeometric distribution series

Porwal, Saurabh (Işık University Press, 2019)

The purpose of the present paper is to establish connections between various subclasses of harmonic univalent functions by applying certain convolution operator involving Confluent Hypergeometric distribution series. To ...