• K-g-fusion woven in Hilbert spaces 

  Sadri, Vahid; Rahimlou, Gholamreza; Ahmadi, Reza (Işık University Press, 2021)

  In this note, we study weaving K-g-fusion frames in separable Hilbert spaces which motivated by a generalized of fusion frames. We present necessary and sufficient conditions for these woven and also construct them by a ...

• Method based on quasi variable mesh for solution of system of second order boundary value problems with mixed boundary conditions 

  Nayak, Sucheta; Khan, Arshad; Mohanty, Ranjan Kumar (Işık University Press, 2021)

  A new numerical method with third order accuracy is presented for the solution of nonlinear two point boundary value problems(BVPs) with mixed boundary conditions using quasi variable mesh. In case of uniform mesh, method ...

• On fuzzy topologies generated by fuzzy relations 

  Mishra, Seema; Srivastava, Rekha (Işık University Press, 2021)

  In this paper, we have introduced a fuzzy topology generated by a fuzzy relation as a generalization of the corresponding concept given by Smithson and obtained sufficient conditions under which this fuzzy topology becomes ...

• Cm-supermagic labeling of friendship graphs 

  Öner, Tarkan; Hussain, Muhammad; Banaras, Shakila (Işık University Press, 2021)

  The friendship graph F?n is obtained by joining n copies of the cycle graph Cm with a common vertex. In this work, we investigate the Cm-supermagic labeling of friendship graphs.

• Radial basis function generated finite difference method for the solution of sinh-Gordon equation 

  Rashidinia, Jalil; Rasoulizadeh, Mohmmad Navaz (Işık University Press, 2021)

  Accuracy of radial basis functions (RBFs) is increased as the shape parameter decreases and produces an ill-conditioned system. To overcome such difficulty, the global stable computation with Gaussian radial basis function-QR ...

• New intuitionistic fuzzy 2- normed I-convergent double sequence spaces by bounded linear operator 

  Khan, Vakeel Ahmed; Fatima, Hira; Ahmad, Mobeen (Işık University Press, 2021)

  Saadati and Park [Saadati. R, and Park J. H., Chaos, Solitons Fractals 2006] [14] introduced the notion of intuitionistic fuzzy normed space. Motivated by this, we introduce some intuitionistic fuzzy 2-normed I-convergent ...

• Controlled multipliers with two operators in Hilbert C*-modules 

  Rashidi-Kouchi, Mehdi; Rahimi, Asghar (Işık University Press, 2021)

  Improving and extending the notion of controlled frames, in this paper, we introduce controlled frames with two operators for Hilbert C*-modules. This generalize controlled frames in Hilbert and Hilbert C*-module. We show, ...

• Impact of initial time difference on stability criteria of impulsive differential equations 

  Mahajan, Pallvi; Srivastava, Sanjay Kumar; Dogra, Rakesh (Işık University Press, 2021)

  In this paper, an impulsive differential system is investigated for the first time for several stability criteria relative to initial time difference. The investigations are carried out by perturbing Lyapunov functions and ...

• Harmonic reciprocal status index and coindex of graphs 

  Ramane, Harishchandra S.; Talwar, Saroja Y. (Işık University Press, 2021)

  The reciprocal status of a vertex u is defined as the sum of reciprocal of the distances between u and all other vertices of a graph G. In this paper we have defined the harmonic reciprocal status index and coindex of a ...

• Fixed points in φ-ordered partial quasi-metric space 

  Leko Moutuou, Domini Jocema; Blessing Khumalo, Precious (Işık University Press, 2021)

  We obtain fixed points for an order preserving mapping in a preordered left p-complete partial quasi-metric space using a preorder induced by an appropriate function. In particular, we do not make use of any contraction condition.

• Fuzzy congruence on M??groups 

  Mangalore, Deepak Shetty; Kuncham, Syam Prasad; Panackal, Harikrishnan (Işık University Press, 2021)

  In this paper, we consider an algebriac structure M?? group, which is a generalization of both the concepts module over a nearring and a gamma nearring, introduced by Satyanarayana [12]. In this paper, we define a fuzzy ...

• Certain types of graphs in interval-valued intuitionistic fuzzy setting 

  Naz, Sumera; Aslam Malik, Muhammad (Işık University Press, 2021)

  Interval-valued intuitionistic fuzzy graph (IVIFG) as a generalization of intuitionistic fuzzy graph (IFG) increases its elasticity drastically. In this paper, some important types of IVIFGs such as regular, irregular, ...

• Common fixed point theorems under rational contractions using two mappings and six mappings and coupled fixed point theorem in bicomplex valued b-metric space 

  Jebril, Iqbal H.; Datta, Sanjib Kumar; Sarkar, Rakesh; Biswas, Nityagopal (Işık University Press, 2021)

  During the past decades, enormous works by different researchers have been carried out in fixed point theory on metric spaces. In this paper, we prove some common fixed point theorems in bicomplex valued metric space for ...

• The Re-nnd solutions of the matrix equation AxB = C with reference to indefinite inner product 

  Dandapany, Krishnaswamy; Samy, Narayana (Işık University Press, 2021)

  In this paper, we first consider the matrix equation AXA[?] = C , where A ? Cn×m, C ? Cn×n and establish necessary and sufficient conditions for the existence of Re-nnd solutions. Further, we determine the necessary and ...

• Third kind Hankel determinant for multivalent bounded turning functions of order alpha 

  Deekonda, Vamshee Krishna; Dasumahanthi, Shalini (Işık University Press, 2021)

  The objective of this paper is to obtain an upper bound of the third order Hankel determinant for the class of multivalent bounded turning functions of order ? (0 ? ? < 1).

• A comparative study of numerical solution of pantograph equations using various wavelets techniques 

  Jaiswal, Jai Prakash; Yadav, Kailash (Işık University Press, 2021)

  The objective of the present article is to discuss a numerical method based on wavelets for finding the solution of pantograph differential equations with proportional delays. First, the pantograph differential equation ...

• Minimal restrained monophonic sets in graphs 

  Santhakumaran, A. P.; Raghu T. Venkata; Ganesamoorthy, K. (Işık University Press, 2021)

  For a connected graph G = (V, E) of order at least two, a restrained monophonic set S of a graph G is a monophonic set such that either S = V or the subgraph induced by V ?S has no isolated vertices. The minimum cardinality ...

• An approximation technique for first Painlevé equation 

  Izadi, Mohammad (Işık University Press, 2021)

  In this study, we introduce a new approximative algorithm to get numerical solutions of the nonlinear first Painlevé equation. Indeed, to obtain an approximate solution, a combination of exponential matrix method based on ...

• Extending the notion of 3-fold-3-point-splitting from graphs to binary matroids 

  Ghafari Baktash, Ghodrat; Azadi, Ghodratollah; Azanchiler, Habib (Işık University Press, 2021)

  Slater defined r-fold-n-point-splitting operation on graphs and proved that, if G is an n-connected graph and H is a graph obtained from G by an r-fold-n-pointsplitting, then H is n-connected. In this article we extend ...

• The method of fundamental solutions for the inverse time-dependent perfusion coefficient problem 

  Damirch, Javad; Janmohammadi, Ali; Sadat Shahsahebi, Fahimeh (Işık University Press, 2021)

  This paper deals with an inverse problem associated with the bio-heat equation in living tissue in the human body. The inverse problem consists of the identification of time-dependent perfusion coefficient when the exact ...

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