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 34 Issue 3_4

  1. TALEBI, A.A.;RASHMANLOU, HOSSEIN;AMERI, REZA 179
    https://doi.org/10.14317/jami.2016.179 PDF KSCI KPUBS HTML
    In this paper, we introduce product interval-valued fuzzy graphs and prove several results which are analogous to interval-valued fuzzy graphs. We conclude by giving properties for a product interval-valued fuzzy graph.
  2. KARTHIKEYAN, K.;CHANDRAN, C.;TRUJILLO, J.J. 193
    https://doi.org/10.14317/jami.2016.193 PDF KSCI KPUBS HTML
    In this paper, we study boundary value problems for fractional integrodifferential equations involving Caputo derivative in Banach spaces. A generalized singular type Gronwall inequality is given to obtain an important priori bounds. Some sufficient conditions for the existence solutions are established by virtue of fractional calculus and fixed point method under some mild conditions.
  3. KIM, KYUNG JOONG 207
    https://doi.org/10.14317/jami.2016.207 PDF KSCI KPUBS HTML
    Our goal is to construct a two-frequency-dependent formula $I_N$ which interpolates a product f of two functions with different frequencies at some N points. In the beginning, it is not clear to us that the formula $I_N$ satisfies $I_N=f$ at the points. However, it is later shown that $I_N$ satisfies the above equation. For this theoretical development, a one-frequency-dependent formula is introduced, and some of its characteristics are explained. Finally, our newly constructed formula $I_N$ is compared to the classical Lagrange interpolating polynomial and the one-frequency-dependent formula in order to show the advantage that is obtained by generating the formula depending on two frequencies.
  4. LI, RAO 221
    https://doi.org/10.14317/jami.2016.221 PDF KSCI KPUBS HTML
    For a connected graph G = (V, E), its inverse degree is defined as $\sum_{{\upsilon}{\in}{V}}^{}\frac{1}{d(\upsilon)}$. Using an upper bound for the inverse degree of a graph obtained by Cioabă in [4], we in this note present sufficient conditions for some Hamiltonian properties and k-connectivity of a graph.
  5. PONRAJ, R.;SINGH, RAJPAL;KALA, R.;NARAYANAN, S. SATHISH 227
    https://doi.org/10.14317/jami.2016.227 PDF KSCI KPUBS HTML
    In this paper we introduce a new graph labeling called k-prime cordial labeling. Let G be a (p, q) graph and 2 ≤ p ≤ k. Let f : V (G) → {1, 2, . . . , k} be a map. For each edge uv, assign the label gcd (f(u), f(v)). f is called a k-prime cordial labeling of G if |vf (i) − vf (j)| ≤ 1, i, j ∈ {1, 2, . . . , k} and |ef (0) − ef (1)| ≤ 1 where vf (x) denotes the number of vertices labeled with x, ef (1) and ef (0) respectively denote the number of edges labeled with 1 and not labeled with 1. A graph with a k-prime cordial labeling is called a k-prime cordial graph. In this paper we investigate the k-prime cordial labeling behavior of a star and we have proved that every graph is a subgraph of a k-prime cordial graph. Also we investigate the 3-prime cordial labeling behavior of path, cycle, complete graph, wheel, comb and some more standard graphs.
  6. KWON, MIN-JEONG;CHO, SUNG-JIN;KIM, HAN-DOO;CHOI, UN-SOOK;KONG, GIL-TAK 239
    https://doi.org/10.14317/jami.2016.239 PDF KSCI KPUBS HTML
    In recent years, CA has been applied to image security due to its simple and regular structure, local interaction and random-like behavior. Since the initial state is regenerated after some iterations in the group CA, the receiver is able to decrypt by the same CA. Pries et al. showed that the all lengths of the cycles in the complemented group CA C with rules 195, 153, and 51 are equal to the order of C. Nandi et al. reported the encryption technique using C. These results can be made efficient use in cryptosystem by expanding the Nandi's key space. In this paper, we analyze the order of the complemented group CA derived from 90=150 group CA and show that all the lengths of the cycles in the complemented CA are equal to the order of the complemented CA.
  7. KHAN, N.U.;USMAN, T.;GHAYASUDDIN, M. 249
    https://doi.org/10.14317/jami.2016.249 PDF KSCI KPUBS HTML
    The object of the present paper is to establish two interesting unified integral formulas involving Multiple (multiindex) Mittag-Leffler functions, which is expressed in terms of Wright hypergeometric function. Some deduction from these results are also considered.
  8. LEE, SANG KI;KANG, JOO HO 257
    https://doi.org/10.14317/jami.2016.257 PDF KSCI KPUBS HTML
    We find examples of Ideals in a tridiagonal algebra ALGL∞ and study some properties of Ideals in ALGL∞. We prove the following theorems: Let k and j be fixed natural numbers. Let A be a subalgebra of ALGL∞ and let A2,{k} ⊂ A ⊂ {T ∈ ALGL∞ | T(2k-1,2k) = 0}. Then A is an ideal of ALGL∞ if and only if A = A2,{k} where A2,{k} = {T ∈ ALGL∞ | T(2k-1,2k) = 0, T(2k-1,2k-1) = T(2k,2k) = 0}. Let B be a subalgebra of ALGL∞ such that B2,{j} ⊂ B ⊂ {T ∈ ALGL∞ | T(2j+1,2j) = 0}. Then B is an ideal of ALGL∞ if and only if B = B2,{j}, where B2,{j} = {T ∈ ALGL∞ | T(2j+1,2j) = 0, T(2j,2j) = T(2j+1,2j+1) = 0}.
  9. YANG, YITAO;ZHANG, YUEJIN 269
    https://doi.org/10.14317/jami.2016.269 PDF KSCI KPUBS HTML
    In this paper, we firstly use Krasnosel'skii fixed point theorem to investigate positive solutions for the following three-point boundary value problems for p-Laplacian with a parameter $({\phi}_P(D^{\alpha}_{0}+u(t)))^{\prime}+{\lambda}f(t, u(t))=0$, 0$D^{\alpha}_{0}+u(0)=u(0)=u{\prime}{\prime}(0)=0$, $u^{\prime}(1)={\gamma}u^{\prime}(\eta)$ where ϕp(s) = |s|p−2s, p > 1, $D^{\alpha}_{0^+}$ is the Caputo's derivative, α ∈ (2, 3], η, γ ∈ (0, 1), λ > 0 is a parameter. Then we use Leggett-Williams fixed point theorem to study the existence of three positive solutions for the fractional boundary value problem $({\phi}_P(D^{\alpha}_{0}+u(t)))^{\prime}+f(t, u(t))=0$, 0$D^{\alpha}_{0}+u(0)=u(0)=u{\prime}{\prime}(0)=0$, $u^{\prime}(1)={\gamma}u^{\prime}(\eta)$ where ϕp(s) = |s|p−2s, p > 1, $D^{\alpha}_{0^+}$ is the Caputo's derivative, α ∈ (2, 3], η, γ ∈ (0, 1).
  10. PARK, JISU;KIM, SEJONG 285
    https://doi.org/10.14317/jami.2016.28 PDF KSCI KPUBS HTML
    We define new inductive mean constructed by a mean on a complete metric space, and see its convergence when the intrinsic mean is given. We also give many examples of inductive matrix means and claim that the limit of inductive mean constructed by the intrinsic mean is not the Karcher mean, in general.
  11. JAIN, K.C.;CHHABRA, PRAPHULL 295
    https://doi.org/10.14317/jami.2016.295 PDF KSCI KPUBS HTML
    Depending upon the nature of the problem, different divergence measures are suitable. So it is always desirable to develop a new divergence measure. In the present work, new information divergence measure, which is exponential in nature, is introduced and characterized. Bounds of this new measure are obtained in terms of various symmetric and non- symmetric measures together with numerical verification by using two discrete distributions: Binomial and Poisson. Fuzzy information measure and Useful information measure corresponding to new exponential divergence measure are also introduced.
  12. SONG, YOON J. 309
    https://doi.org/10.14317/jami.2016.309 PDF KSCI KPUBS HTML
    Let V be a Euclidean Jordan algebra with a symmetric cone K. We show that for a Z-transformation L with the additional property L(K) ⊆ K (which we will call ’cone-preserving’), GUS ⇔ strictly copositive on K ⇔ monotone + P. Specializing the result to the Stein transformation SA(X) := X - AXAT on the space of real symmetric matrices with the property $S_A(S^n_+){\subseteq}S^n_+$, we deduce that SA GUS ⇔ I ± A positive definite.
  13. FALAHATI-NEZHAD, FARZANEH;AZARI, MAHDIEH 319
    https://doi.org/10.14317/jami.2016.319 PDF KSCI KPUBS HTML
    The hyper-Zagreb index HM(G) of a simple graph G is defined as the sum of the terms (du+dv)2 over all edges uv of G, where du denotes the degree of the vertex u of G. In this paper, we present several upper and lower bounds on the hyper-Zagreb index in terms of some molecular structural parameters and relate this index to various well-known molecular descriptors.
  14. SO, KEUM SOOK;KIM, YOUNG HEE 331
    https://doi.org/10.14317/jami.2016.331 PDF KSCI KPUBS HTML
    The notion of θ-generalized int-soft subalgebras of BE-algebras is introduced, and related properties are investigated. Relations between int-soft subalgebras and θ-generalized int-soft subalgebras are discussed, and characterizations of θ-generalized int-soft subalgebras are considered.
  15. PATTABIRAMAN, K. 341
    https://doi.org/10.14317/jami.2016.341 PDF KSCI KPUBS HTML
    In this paper, the exact formulae for the generalized product degree distance, reciprocal product degree distance and product degree distance of tensor product of a connected graph and the complete multipartite graph with partite sets of sizes m0, m1, ⋯ , mr−1 are obtained.
  16. HONG, DUG HUN 355
    https://doi.org/10.14317/jami.2016.355 PDF KSCI KPUBS HTML
    Recently, some results of Blackwell's Theorem in which interarrival times are characterized as fuzzy variables under t-norm-based fuzzy operations are discussed by Hong. However, these results are invalid. In this note, we give counter examples of these results.