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  1. Home /
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  3. Vol. 15 No. 2 (2020)

Vol. 15 No. 2 (2020)

DOI: https://doi.org/10.11575/cdm.v15i2
Published: 2020-07-30

Articles

  • Triple product sums of Catalan triangle numbers

    Wenchang Chu
    1-17
    • PDF
  • $Q_4$-Factorization of $\lambda K_n$ and $\lambda K_x(m)$

    Oğuz Doğan
    18-26
    • PDF
  • Diameter 3

    Miodrag Sokic
    27-41
    • PDF
  • Hyperball packings related to truncated cube and octahedron tilings in hyperbolic space

    Jenő Szirmai
    42-59
    • PDF
  • On irreversible spread of influence in edge-weighted graphs

    Manouchehr Zaker
    60-72
    • PDF
  • A subspace based subspace inclusion graph on vector space

    Mohammad Ashraf, Mohit Kumar, Ghulam Mohammad
    73-83
    • PDF
  • The 2-tuple dominating independent number of a random graph

    Bin Wang, Tao Zhang
    84-94
    • PDF
  • A new mathematical model for tiling finite regions of the plane with polyominoes

    Marcus Garvie, John Burkardt
    95-131
    • PDF
  • Minimum size blocking sets of certain line sets with respect to an elliptic quadric in $PG(3,q)$

    Bart De Bruyn, Puspendu Pradhan, Binod Kumar Sahoo
    132-147
    • PDF
  • A method to determine algebraically integral Cayley digraphs on finite abelian group

    Fei Li
    148-152
    • PDF
  • Further generalizations of the parallelogram law

    Antonio M. Oller-Marcén
    153-158
    • PDF
  • Equality Perfect Graphs and Digraphs

    Stephan Dominique Andres
    159-178
    • PDF

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Contributions to Discrete Mathematics. ISSN: 1715-0868

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