권호 표지

Journal of applied mathematics & informatics

The Korean Society for Computational and Applied Mathematics (KSCAM)

  • 연3회간
  • /
  • 2734-1194(pISSN)
  • /
  • 2234-8417(eISSN)

Domain

  • Mathematics ＞ Applied Mathematics

Aim & Scope

This is a broad based journal covering all branches of computational or applied mathematics with special encouragement to researchers in theoretical computer science and mathematical Informatics. Thus, the major areas, such as Numerical Analysis, Discrete Optimization, Linear and Nonlinear Programming, Theory of Computation(Computational Complexity, Automata and Formal Languages), Control Theory, Theory of Algorithms, Computational Logic, Applied Combinatorics (including graphs, codes, and designs), Coding Theory, Cryptographics, Big data, AI, Fuzzy Theory with applications, Differential Equations with applications, etc., are all included. A large variety of scientific problems also necessarily involve Algebra, Analysis, Geometry, Probability and Statistics, and so on. The journal welcomes research papers in all branches of mathematics which have some bearing on the application to scientific problems, including papers in the areas of Actuarial Science, Mathematical Biology, Mathematical Economics and Finance.

KSCI KCI SCOPUS

Volume 40 Issue 1_2

  1. MUSTAFA, ABDELFATTAH;KHAN, M.I. 1
    https://doi.org/10.14317/jami.2022.001 PDF KSCI
    This article introduces a new distribution called length-biased powered inverse Rayleigh distribution. Some of its statistical properties are derived. Maximum likelihood procedure is applied to report the point and interval estimations of all model parameters. The proposed distribution is also applied to two real data sets for illustrative purposes.
  2. LI, CHUNJI;QI, WENTAO 15
    https://doi.org/10.14317/jami.2022.015 PDF KSCI
    Let p > 1 and α[p](x) : $\sqrt{x}$, $\sqrt{\frac{p}{^2p-1}}$, $\sqrt{\frac{2p-1}{3p-2}}$, … , with 0 < x ≤ $\frac{p}{2p-1}$. In [10], the authors considered the subnormality, n-hyponormality and positive quadratic hyponormality of Wα[p](x). By continuing to study, in this paper, we give a sufficient condition of quadratic hyponormality of Wα[p](x). Finally, we give an example to characterize the gaps of Wα[p](x) distinctively.
  3. GELU, FASIKA WONDIMU;DURESSA, GEMECHIS FILE 25
    https://doi.org/10.14317/jami.2022.025 PDF KSCI
    In this study, the non-standard finite difference method for the numerical solution of singularly perturbed parabolic reaction-diffusion subject to Robin boundary conditions has presented. To discretize temporal and spatial variables, we use the implicit Euler and non-standard finite difference method on a uniform mesh, respectively. We proved that the proposed scheme shows uniform convergence in time with first-order and in space with second-order irrespective of the perturbation parameter. We compute three numerical examples to confirm the theoretical findings.
  4. PANG, GUOCHEN;JIAO, YU;ZHANG, HONGZI;CHEN, XIANGYONG;ZHANG, ANCAI;QIU, JIANLONG 47
    https://doi.org/10.14317/jami.2022.047 PDF KSCI
    This paper concerns the problem of simultaneous fault detection and disturbance reject control(SFDDRC) for a class of linear time-invariant system. In the framework of fault detection, residual generators are required to be robust to disturbances existing in the system. Different from most of the existing simultaneous fault and control(SFDC) methods, SFDDRC rejects the influences of disturbances on residual generators by disturbance observer-based control(DOBC). This not only effectively improves the accuracy of fault detection, but also solves the problem that most of the existing SFDC methods require that the disturbance must be bounded. Finally, a numerical example is given to verify the validity of the method.
  5. JO, GYE HWAN;KIM, DAEYEOUL 61
    https://doi.org/10.14317/jami.2022.061 PDF KSCI
    Let Mp := 2p - 1 be a Mersenne prime. In this article, we find integers a, b, c, d, e and n satisfying $\sum_{t=0}^{n}\;\({an+b\\ct+d}\)\;=\;M_{p^e}$ given a Mersenne prime number Mp. In order to find a special case that satisfies the above results, we reprove an well-known relation of a certain sum of binomial coefficients and a divisor function.
  6. KISI, OMER 69
    https://doi.org/10.14317/jami.2022.069 PDF KSCI
    We investigate the concept of lacunary statistical convergence and lacunary strongly convergence for sequence of sets in intuitionistic fuzzy metric space (IFMS) and examine their characterization. We obtain some inclusion relation relating to these concepts. Further some necessary and sufficient conditions for equality of the sets of statistical convergence and lacunary statistical convergence for sequence of sets in IFMS have been established. The concept of strong Cesàro summability in IFMS has been defined and some results are established.
  7. IBRAHIM, HARIWAN Z. 85
    https://doi.org/10.14317/jami.2022.085 PDF KSCI
    The purpose of this paper is to introduce the notion of Fermatean fuzzy topological space by motivating from the notion of intuitionistic fuzzy topological space, and define Fermatean fuzzy continuity of a function defined between Fermatean fuzzy topological spaces. For this purpose, we define the notions of image and the pre-image of a Fermatean fuzzy subset with respect to a function and we investigate some basic properties of these notions. We also construct the coarsest Fermatean fuzzy topology on a non-empty set X which makes a given function f from X into Y a Fermatean fuzzy continuous where Y is a Fermatean fuzzy topological space. Finally, we introduce the concept of Fermatean fuzzy points and study some types of separation axioms in Fermatean fuzzy topological space.
  8. MANJUNATHA, N.;SUMITHRA, R.;VANISHREE, R.K. 99
    https://doi.org/10.14317/jami.2022.099 PDF KSCI
    The problem of Benard double diffusive Marangoni convection is investigated in a horizontally infinite composite layer system consisting of a two component fluid layer above a porous layer saturated with the same fluid, using Darcy-Brinkman model with constant heat sources/sink in both the layers. The lower boundary of the porous region is rigid and upper boundary of the fluid region is free with Marangoni effects. The system of ordinary differential equations obtained after normal mode analysis is solved in closed form for the eigenvalue, thermal Marangoni number for two types of thermal boundary combinations, Type (I) Adiabatic-Adiabatic and Type (II) Adiabatic -Isothermal. The corresponding two thermal Marangoni numbers are obtained and the essence of the different parameters on non-Darcy-Benard double diffusive Marangoni convection are investigated in detail.
  9. REDDY, KOTTE AMARANADHA;BASHA, S. SHARIEF 117
    https://doi.org/10.14317/jami.2022.117 PDF KSCI
    Reverse edge magic(REM) labeling of the graph G = (V, E) is a bijection of vertices and edges to a set of numbers from the set, defined by λ : V ∪ E → {1, 2, 3, …, |V| + |E|} with the property that for every xy ∈ E, constant k is the weight of equals to a xy, that is λ(xy) - [λ(x) + λ(x)] = k for some integer k. We given the construction of REM labeling for the Cartesian Product, Unions of Braids and Unions of Triangular Belts. The Kotzig array used in this paper is the 3 × (2r + 1) kotzig array. we test the konow results about REM labelling that are related to the new results we found.
  10. LIU, YONGHONG 133
    https://doi.org/10.14317/jami.2022.133 PDF KSCI
    We offered a new method for constructing Latin squares. We introduce the concept of a standard form via example for Latin squares of order n and we also call it symmetric BCL algebras matrix, and thereby become BCL algebra representations of the picture of Latin squares. Our research shows that some new properties of the Latin squares with BCL algebras are in ℤn.
  11. KIM, IN HWA;CHO, NAK EUN 141
    https://doi.org/10.14317/jami.2022.141 PDF KSCI
    The purpose of the present paper is to obtain some conditions for strongly starlikeness and univalence of normalized analytic functions in the open unit disk. Further, we prove an univalence and argument properties for certain integral operators.
  12. KRISHNA, K. MAHESH;JOHNSON, P. SAM;MOHAPATRA, R.N. 153
    https://doi.org/10.14317/jami.2022.153 PDF KSCI
    In 1960, Schatten studied operators of the form $\sum_{n=1}^{{\infty}}\;{\lambda}_n(x_n{\otimes}{\bar{y_n}})$, where {xn}n and {yn}n are orthonormal sequences in a Hilbert space, and {λn}n ∈ ℓ∞(ℕ). Balazs generalized some of the results of Schatten in 2007. In this paper, we further generalize results of Balazs by studying the operators of the form $\sum_{n=1}^{{\infty}}\;{\lambda}_n(A^*_nx_n{\otimes}{\bar{B^*_ny_n}})$, where {An}n and {Bn}n are operator-valued Bessel sequences, {xn}n and {yn}n are sequences in the Hilbert space such that {║xn║║yn║}n ∈ ℓ∞(ℕ). We also generalize the class of Hilbert-Schmidt operators studied by Balazs.
  13. GURDAL, MEHMET;NABIEV, ANAR ADILOGLU;AYYILDIZ, MERAL 173
    https://doi.org/10.14317/jami.2022.173 PDF KSCI
    We investigated the invariant subspaces of the fractional integral operator in the Sobolev space Wkp[0, 1] and prove unicellularity of the operator Jα by using the Duhamel product.
  14. SWAMINATHAN, A.;SIVARAJA, S. 185
    https://doi.org/10.14317/jami.2022.185 PDF KSCI
    The aim of this article is to define fuzzy maximal open cover and discuss its few properties. we also defined and study fuzzy m-compact space and discussed its properties. Also we obtain few more results on fuzzy minimal c-regular and fuzzy minimal c-normal spaces. We have proved that a fuzzy Haussdorff m-compact space is fuzzy minimal c-normal.
  15. DATTA, DEBASISH;TRIPATHY, BINOD CHANDRA 191
    https://doi.org/10.14317/jami.2022.190 PDF KSCI
    This paper introduces the statistical convergence concepts of double sequences of complex uncertain variables: statistical convergence almost surely(a.s.), statistical convergence in measure, statistical convergence in mean, statistical convergence in distribution and statistical convergence uniformly almost surely(u.a.s.).
  16. ALI, ASAD;IQBAL, MUHAMMAD ZAFAR 205
    https://doi.org/10.14317/jami.2022.205 PDF KSCI
    In this paper we give a simple and direct proof of an Euler integral representation for a special class of q+1Fq,k k-hypergeometric functions for q ≥ 2. The values of certain 3F2,k and 4F3,k functions at $x=\frac{1}{k}$, some of which can be derived using other methods. We may conclude that for k = 1 the results are reduced to [3].
  17. GULLE, ESRA;ULUSU, UGUR 215
    https://doi.org/10.14317/jami.2022.215 PDF KSCI
    In this paper, for double set sequences, as a new approach to the notion of Wijsman asymptotical lacunary statistical equivalence of order 𝜂, we introduce new concepts which are called Wijsman asymptotical ${\mathcal{I}}_2$-lacunary statistical equivalence of order 𝜂 and Wijsman asymptotical strong ${\mathcal{I}}_2$-lacunary equivalence of order 𝜂 where 0 < 𝜂 ≤ 1. Also, some properties of these new concepts are investigated, and the existence of some relations between these and some previously studied asymptotical equivalence concepts for double set sequences is examined.
  18. KANG, JUNG YOOG 233
    https://doi.org/10.14317/jami.2022.233 PDF KSCI
    The purpose of this paper is to find some properties and identities for (p, q)-cosine Genocchi polynomials. This polynomials which is one of Appell polynomials, have multifarious relations of (p, q)-other polynomials.
  19. SABA, N.;BOUSSAYOUD, A. 243
    https://doi.org/10.14317/jami.2022.243 PDF KSCI
    In this paper, we present and prove an new theorem on symmetric functions. By using this theorem, we derive some new generating functions of the products of (p, q)-Fibonacci numbers, (p, q)-Lucas numbers, (p, q)-Pell numbers, (p, q)-Pell Lucas numbers, (p, q)-Jacobsthal numbers and (p, q)-Jacobsthal Lucas numbers with Chebyshev polynomials of the first kind.
  20. SINGH, GAGANDEEP;SINGH, GURCHARANJIT 259
    https://doi.org/10.14317/jami.2022.259 PDF KSCI
    The present investigation is concerned with certain subclasses of alpha-convex functions with fixed point and defined with subordination in the unit disc E = {z :| z |< 1}. The estimates of the first four coefficients for the functions in these classes are obtained. The results due to various authors follow as special cases.
  21. KAYIJUKA, IDRISSA;EGE, SERIFE M.;KONURALP, ALI;TOPAL, FATMA S. 267
    https://doi.org/10.14317/jami.2022.267 PDF KSCI
    Herein, an algorithm for efficient evaluation of oscillatory Fourier-integrals with Jacobi-Cauchy type singularities is suggested. This method is based on the use of the traditional Clenshaw-Curtis (CC) algorithms in which the given function is approximated by the truncated Chebyshev series, term by term, and the oscillatory factor is approximated by using Bessel function of the first kind. Subsequently, the modified moments are computed efficiently using the numerical steepest descent method or special functions. Furthermore, Algorithm and programming code in MATHEMATICA® 9.0 are provided for the implementation of the method for automatic computation on a computer. Finally, selected numerical examples are given in support of our theoretical analysis.
  22. SARIGOL, MEHMET ALI 283
    https://doi.org/10.14317/jami.2022.283 PDF KSCI
    In this paper we characterize the sets of summability factors (|C, 0|k, |R, pn|s) and (|R, pn|k, |C, 0|s), 1 < k ≤ s < ∞, which also extends some known results.
  23. BATYHA, RADWAN M. 289
    https://doi.org/10.14317/jami.2022.289 PDF KSCI
    This article examines the multidimensional index extraction method of the disability social security system based on data mining. While creating the data warehouse of the social security system for the disabled, we need to know the elements of the social security indicators for the disabled. In this context, a clustering algorithm was used to extract the indicators of the social security system for the disabled by investigating the historical dimension of social security for the disabled. The simulation results show that the index extraction method has high coverage, sensitivity and reliability. In this paper, a multidimensional extraction method is introduced to extract the indicators of the social security system for the disabled based on data mining. The simulation experiments show that the method presented in this paper is more reliable, and the indicators of social security system for the disabled extracted are more effective in practical application.
  24. KARTHIKEYAN, K.;RAJA, D. SENTHIL;SUNDARARAJAN, P. 305
    https://doi.org/10.14317/jami.2022.305 PDF KSCI
    We study the existence and uniqueness of solutions for a class of boundary value problems of nonlinear fractional order differential equations involving the Caputo fractional derivative by employing the Banach's contraction principle and the Schauder's fixed point theorem. In addition, an example is given to demonstrate the application of our main results.
  25. TEFERA, GERIMA 317
    https://doi.org/10.14317/jami.2022.317 PDF KSCI
    The concept of hom-set in an implicative algebra as an implicative algebra is introduced. The idea of sub implicative algebra in hom-set, 1-commutative algebra of hom-set are investigated. Different characterization theorems are proved.
  26. KISI, OMER 327
    https://doi.org/10.14317/jami.2022.327 PDF KSCI
    In this paper, we introduce arithmetic ${\mathcal{I}}$-statistically convergent sequence space $A{\mathcal{I}}SC$, ${\mathcal{I}}$-lacunary arithmetic statistically convergent sequence space $A{\mathcal{I}}SC_{\theta}$, strongly ${\mathcal{I}}$-lacunary arithmetic convergent sequence space $AN_{\theta}[{\mathcal{I}}]$ and prove some inclusion relations between these spaces. Futhermore, we give ${\mathcal{I}}$-lacunary arithmetic statistical continuity. Finally, we define ${\mathcal{I}}$-Cesàro arithmetic summability, strongly ${\mathcal{I}}$-Cesàro arithmetic summability. Also, we investigate the relationship between the concepts of strongly ${\mathcal{I}}$-Cesàro arithmetic summability, strongly ${\mathcal{I}}$-lacunary arithmetic summability and arithmetic ${\mathcal{I}}$ -statistically convergence.
  27. SHAH, SHUJAAT ALI;NOOR, KHALIDA INAYAT 341
    https://doi.org/10.14317/jami.2022.341 PDF KSCI
    We introduce certain subclasses of bi-univalent functions related to the strongly Janowski functions and discuss the Taylor-Maclaurin coefficients |a2| and |a3| for the newly defined classes. Also, we deduce certain new results and known results as special cases of our investigation.
  28. ROEFERO, LUIZ GUSTAVO PEREIRA;CHAVARETTE, FABIO ROBERTO;OUTA, ROBERTO;MERIZIO, IGOR FELICIANI;MORO, THIAGO CARRETA;MISHRA, VISHNU NARAYAN 351
    https://doi.org/10.14317/jami.2022.351 PDF KSCI
    The design of mechanical structures aims to meet criteria, together with the safety of operators and lives in the vicinity of the equipment. Thus, there are several cases that meeting the desired specification causes the mechanical device to perform unstable and, sometimes, chaotic behavior. In these cases, control methods are applied in order to stabilize the device when in operation, aiming at the physical integrity of the component and the device operators. In this work, we will develop a study about the influence of a controller applied in a non-ideal capsule system operating with uncertain parameters, being non-existent in the literature. For this, two initial conditions were used: one that the capsule starts from rest and another that it is already in motion. Thus, the effectiveness of the controller can be assessed in both initial conditions, restricting the movement of the internal vibration-impact system to the capsule.
  29. RYOO, C.S. 371
    https://doi.org/10.14317/jami.2022.371 PDF KSCI
    In this paper we give some prperties of the poly-cosine tangent polynomials and poly-sine tangent polynomials.