권호 표지

Journal of applied mathematics & informatics

한국전산응용수학회 (The Korean Society for Computational and Applied Mathematics)

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

과학기술표준분류

  • 수학 ＞ 응용수학

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

제34권1_2호

  1. RAO, M. SAMBASIVA 1
    https://doi.org/10.14317/jami.2016.001 PDF KSCI KPUBS HTML
    Some properties of filters are studied with respect to a congru-ence of BE-algebras. The notion of θ-filters is introduced and these classes of filters are then characterized in terms of congruence classes. A bijection is obtained between the set of all θ-filters of a BE-algebra and the set of all filters of the respective BE-algebra of congruences classes.
  2. PRADHAN, P.;KUMAR, KAMESH 9
    https://doi.org/10.14317/jami.2016.009 PDF KSCI KPUBS HTML
    In this paper, it has been shown that the hairy cycle Cn ⊙ rK1, n ≡ 3(mod4), the graph obtained by adding pendant edge to each pendant vertex of hairy cycle Cn ⊙ 1K1, n ≡ 0(mod4), double graph of path Pn and double graph of comb Pn ⊙ 1K1 are k-graceful.
  3. OHM, MI RAY;SHIN, JUN YONG 19
    https://doi.org/10.14317/jami.2016.019 PDF KSCI KPUBS HTML
    In this paper, we present a split least-squares characteristic mixed finite element method(MFEM) to get the approximate solutions of the convection dominated Sobolev equations. First, to manage both convection term and time derivative term efficiently, we apply a least-squares characteristic MFEM to get the system of equations in the primal unknown and the flux unknown. Then, we obtain a split least-squares characteristic MFEM to convert the coupled system in two unknowns derived from the least-squares characteristic MFEM into two uncoupled systems in the unknowns. We theoretically prove that the approximations constructed by the split least-squares characteristic MFEM converge with the optimal order in L2 and H1 normed spaces for the primal unknown and with the optimal order in L2 normed space for the flux unknown. And we provide some numerical results to confirm the validity of our theoretical results.
  4. AHMED, A.M.;ELSAYED, E.M. 35
    https://doi.org/10.14317/jami.2016.035 PDF KSCI KPUBS HTML
    In this paper we deal with the expressions of solutions and the periodicity nature of some systems of nonlinear difference equations with order three with nonzero real numbers initial conditions.
  5. TAHMASBPOUR, A.;BORZOOEI, R.A. 49
    https://doi.org/10.14317/jami.2016.049 PDF KSCI KPUBS HTML
    In this paper, two different approaches to chromatic number of a bipolar fuzzy graph are introduced. The first approach is based on the α-cuts of a bipolar fuzzy graph and the second approach is based on the definition of Eslahchi and Onagh for chromatic number of a fuzzy graph. Finally, the bipolar fuzzy vertex chromatic number and the edge chromatic number of a complete bipolar fuzzy graph, characterized.
  6. JEONG, JAE UG 61
    https://doi.org/10.14317/jami.2016.061 PDF KSCI KPUBS HTML
    In this paper, we consider the problems of convergence of parallel iterative algorithms for a system of nonlinear variational inequalities and nonexpansive mappings. Strong convergence theorems are established in the frame work of real Banach spaces.
  7. GABRIEL FILHO, L.A.;CREMASCO, C.P.;PUTTI, F.F.;GOES, B.C.;MAGALHAES, M.M. 75
    https://doi.org/10.14317/jami.2016.075 PDF KSCI KPUBS HTML
    The objective of this work is to perform a geometric analysis of the net present value (NPV) and Internal Rate of Return (IRR), defining analytics and in verifying the relationship between geometric properties of such functions. For this simulation, was used the values of the cash flows for each period identical and equal to US$ 200.00 cash, the initial investment US$ 1,000.00 and investments of each identical and equal to US$ 50.00 period. In addition, the discount rate and time were considered a maximum of 2 years (24 months) at a rate between 0 and 100%. The geometric analysis of the characteristics obtained from the expressions of the Net Present Value and Internal Rate of Return possible to observe that besides the analytical dependence between these quantities , the geometric relationships are relevant when studied in relation to the zero NPV and expressed a great contribution the sense of a broad vision for the administrator in the analysis of analytical variables that in uences the balance sheet of the company.
  8. OH, SEYOUNG;YUN, JAE HEON 85
    https://doi.org/10.14317/jami.2016.085 PDF KSCI KPUBS HTML
    In this paper, we first propose a fast one-parameter relaxation (FOPR) method with a scaled preconditioner for solving the saddle point problems, and then we present a formula for finding its optimal parameter. To evaluate the effectiveness of the proposed FOPR method with a scaled preconditioner, numerical experiments are provided by comparing its performance with the existing one or two parameter relaxation methods with optimal parameters such as the SOR-like, the GSOR and the GSSOR methods.
  9. WANG, MINGHUI;ZHANG, JUNTAO 95
    https://doi.org/10.14317/jami.2016.095 PDF KSCI KPUBS HTML
    In this paper, according to the classical LSQR algorithm forsolving least squares (LS) problem, an iterative method is proposed for finding the minimum-norm pure imaginary solution of the quaternionic least squares (QLS) problem. By means of real representation of quaternion matrix, the QLS's correspongding vector algorithm is rewrited back to the matrix-form algorthm without Kronecker product and long vectors. Finally, numerical examples are reported that show the favorable numerical properties of the method.
  10. JUNG, N.S.;RYOO, C.S. 107
    https://doi.org/10.14317/jami.2016.107 PDF KSCI KPUBS HTML
    In this paper we give some symmetric property of the generalized twisted q-Euler zeta functions and q-Euler polynomials.
  11. ABDULLAH, SALEEM;ASLAM, MUHAMMAD;HUSSAIN, SHAH 115
    https://doi.org/10.14317/jami.2016.115 PDF KSCI KPUBS HTML
    The concept of quasi-coincidence of interval valued intuitionistic fuzzy point with an interval valued intuitionistic fuzzy set is considered. By using this idea, the notion of interval valued (α, β)-intuitionistic fuzzy bi-ideals, (1,2)ideals in a semigroup introduced and consequently, a generalization of interval valued intuitionistic fuzzy bi-ideals and intuitionistic fuzzy bi-ideals is defined. In this paper, we study the related properties of the interval valued (α, β)-intuitionistic fuzzy bi-ideals, (1,2) ideals and in particular, an interval valued (Є, Є ∨q)-fuzzy bi-ideals and (1,2) ideals in semigroups will be investigated.
  12. KIM, DAEYEOUL;CHEONG, CHEOLJO;PARK, HWASIN 145
    https://doi.org/10.14317/jami.2016.145 PDF KSCI KPUBS HTML
    It is known that certain convolution sums can be expressed as a combination of divisor functions and Bernoulli formula. In this article, we consider relationship between fifth-order combinatoric convolution sums of divisor functions and Bernoulli polynomials. As applications of these identities, we give a concrete interpretation in terms of the procedural modeling method.
  13. CHU, AJIE;SU, YIXIAO;DU, SHOUQIANG 157
    https://doi.org/10.14317/jami.2016.157 PDF KSCI KPUBS HTML
    In this paper, we develop a new hybridization conjugate gradient method for solving the unconstrained optimization problem. Under mild assumptions, we get the sufficient descent property of the given method. The global convergence of the given method is also presented under the Wolfe-type line search and the general Wolfe line search. The numerical results show that the method is also efficient.
  14. CHOI, BYOUNG JIN;CHOI, JIN PIL;JI, UN CIG 167
    https://doi.org/10.14317/jami.2016.167 PDF KSCI KPUBS HTML
    In this paper, we study the stochastic integral of processes taking values of generalized operators based on a triple E ⊂ H ⊂ E∗, where H is a Hilbert space, E is a countable Hilbert space and E∗ is the strong dual space of E. For our purpose, we study E-valued Wiener processes and then introduce the stochastic integral of L(E, F∗)-valued process with respect to an E-valued Wiener process, where F∗ is the strong dual space of another countable Hilbert space F.