권호 표지

Journal of the Korean Mathematical Society (대한수학회지)

Korean Mathematical Society

  • Bimonthly
  • /
  • 0304-9914(pISSN)
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  • 2234-3008(eISSN)

Aim & Scope

This journal endeavors to publish significant research of broad interests in pure and applied mathematics. One volume is published each year, and each volume consists of six issues (January, March, May, July, September, November).

http://jkms.kms.or.kr/submission KCI SCOPUS SCI SCIE

Volume 63 Issue 3

  1. Qunying Liao;Zhaohui Zhang;Peipei Zheng 493
    https://doi.org/10.4134/JKMS.j240479 PDF
    In this manuscript, we construct a class of projective three-weight linear codes and two classes of projective four-weight linear codes over 𝔽2 from the defining sets construction, and determine their weight distributions by using additive characters. Especially, the projective three-weight linear code and one class of projective four-weight linear codes (Theorem 4.1) can be applied in secret sharing schemes.
  2. Jaekwan Jeon;Heesang Park;Dongsoo Shin 509
    https://doi.org/10.4134/JKMS.j250106 PDF
    We establish that rational homology disk smoothings of weighted homogeneous surface singularities are always ℚ-Gorenstein by using their sandwiched structures.
  3. Yoonje Jeong;Sang-Gyun Youn 541
    https://doi.org/10.4134/JKMS.j250191 PDF
    Motivated by [4], we study when the operator norm of the self-adjoint main character is minimized in the category of finitely generated discrete quantum groups. Specifically, we prove that the operator norm is minimized by the unitary free quantum groups 𝔽U(Q), and they are the only minimizers among the duals of free quantum groups.
  4. Hyenho Lho 555
    https://doi.org/10.4134/JKMS.j250222 PDF
    We study the full equivariant Gromov-Witten invariants of the formal quintic.
  5. Chuzi Duan;Ling He 579
    https://doi.org/10.4134/JKMS.j250226 PDF
    We prove that the moduli space of all noncongruent linearly full totally real flat minimal immersions from the complex plane ℂ into ℍP3 that do not lie in ℂP3 consists of three components, each of which is a manifold of real dimension 6. As an application, we give a description of the moduli space of all noncongruent linearly full totally real flat minimaltori in ℍP3 that do not lie in ℂP3.
  6. Yen-Kheng Lim;Mounir Nisse 601
    https://doi.org/10.4134/JKMS.j250237 PDF
    The prime motivation behind this paper is to prove that any torus link can be realized as the union of the one-dimensional connected components of the set of critical values of the argument map restricted to a complex algebraic curve in the 2-dimensional complex algebraic torus.
  7. Enrico D'Amora;Giovanni Vincenzi 619
    https://doi.org/10.4134/JKMS.j250282 PDF
    Two notable classes of figurate numbers are those of polygonal numbers Pλ(n), and centered polygonal numbers Cλ(n), where λ is the number of sides and n is the position in the sequence. A few years ago, numbers that are simultaneously polygonal concerning two different configurations (i.e., with a different number of sides) were characterized. Similarly, more recently, numbers that are both polygonal and centered polygonal have also been studied. In this article, we characterize the numbers that are simultaneously centered polygonal concerning two distinct configurations. Moreover, solving for certain families of Diophantine equations, we will provide a method for determining explicit examples of numbers that are simultaneously centered.
  8. Zeyuan He;Yu-Zhe Liu;Chao Zhang;Tiwei Zhao;Jianguo Zhou 639
    https://doi.org/10.4134/JKMS.j250339 PDF
    We provide a method to calculate the integrations of some augmentations over finite-dimensional algebras, and prove that these integrations are Bochner integrations. Furthermore, let Λ be an algebra of type 𝔸t, we show that there exists a Nakayama algebra Λ' of type $${\vec{\mathbb{A}}_t\,=\,1{\longrightarrow}\,2\,{\longrightarrow}\,{\cdots}\,{\longrightarrow}\,t$$ such that the number ♯(mod(Λ)) of isoclasses of indecomposable right Λ-modules, the dimension dim Λ' of the Nakayama algebra Λ' as a vector space, and the Bochner integrations (B) $\int{_{[0,1]^{{\times}t}}}\;2{\sum}_{i=1}^{t}\,\text{v}_p_i\,d{\mu}$ coincide. Here, p1, . . . , pt are all right maximal paths on the bound quiver of Λ', and, for each 1 ⩽ i ⩽ t, vpi is the sum of all augmentations vv corresponding to starting points v of all arrows on pi. Moreover, we consider some algebras of type 𝔻 by a similar way.
  9. Cezhong Tong;Zicong Yang;Zehua Zhou 663
    https://doi.org/10.4134/JKMS.j250349 PDF
    In a recent paper [9], Choe et al. obtained characterizations for bounded and compact differences of two weighted composition operators acting on standard weighted Bergman spaces over the unit disk in terms of Carleson measures. Then they extended the results to the ball setting. In this paper, we further generalize those results to the Bergman spaces with variable exponent. Our methods, when restricted to the case of constant exponent, are new and simpler. Moreover, boundedness and compactness of Toeplitz operators on variable exponent Bergman spaces are also characterized.