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Contributions to Discrete Mathematics, Volume 15
Volume 15, Number 1, 2020
- Marcin Dumnicki, Janusz Gwozdziewicz, Justyna Szpond:
An elementary, geometric proof of the non-existence of a projective plane of order 6. 1-9 - Dipendu Maity, Ashish Kumar Upadhyay:
Corrigendum to "On the enumeration of a class of toroidal graphs" [Contrib. Discrete Math. 13 (2018), no. 1, 79-119]. 10-11 - Robert Dawson:
Partitioning the 5×5 array into restrictions of circles. 12-21 - Dean Crnkovic, Marija Maksimovic:
Construction of strongly regular graphs having an automorphism group of composite order. 22-41 - Jie Wang, Lin Si:
The polar of convex lattice sets. 42-51 - Nihal Tas, Sümeyra Uçar, Nihal Yilmaz Özgür:
Pell Coding and Pell Decoding Methods with Some Applications. 52-66 - Kyle MacKeigan, Jeannette C. M. Janssen:
Total colouring of some cartesian and direct product graphs. 67-71 - Darlison Nyirenda:
On parity and recurrences for certain partition functions. 72-79 - Ugur Odabasi:
Factorizations of complete graphs into cycles and 1-factors. 80-89 - Jin Hong Kim:
On the first two entries of the f-vectors of 6-polytopes. 90-101 - Rosário Fernandes, Henrique F. da Cruz, Domingos Salomão:
Latin Squares and their Bruhat Order. 102-120 - Abderrahim Boussaïri, Brahim Chergui, Pierre Ille, Mohamed Zaidi:
3-uniform hypergraphs: modular decomposition and realization by tournaments. 121-153 - Doost Ali Mojdeh, Babak Samadi, Lutz Volkmann:
Nordhaus-Gaddum type inequalities for multiple domination and packing parameters in graphs. 154-162 - Feng Qi, Da-Wei Niu, Dongkyu Lim, Bai-Ni Guo:
Closed formulas and identities on the Bell polynomials and falling factorials. 163-174 - Lili Mu:
Some combinatorial properties of hexagonal lattices. 175-182
Volume 15, Number 2, 2020
- Wenchang Chu:
Triple product sums of Catalan triangle numbers. 1-17 - Oguz Dogan:
Q4-Factorization of λ Kn and λ Kx(m). 18-26 - Miodrag Sokic:
Diameter 3. 27-41 - Jeno Szirmai:
Hyperball packings related to truncated cube and octahedron tilings in hyperbolic space. 42-59 - Manouchehr Zaker:
On irreversible spread of influence in edge-weighted graphs. 60-72 - Mohammad Ashraf, Mohit Kumar, Ghulam Mohammad:
A subspace based subspace inclusion graph on vector space. 73-83 - Bin Wang, Tao Zhang:
The 2-tuple dominating independent number of a random graph. 84-94 - Marcus R. Garvie, John Burkardt:
A new mathematical model for tiling finite regions of the plane with polyominoes. 95-131 - Bart De Bruyn, Puspendu Pradhan, Binod Kumar Sahoo:
Minimum size blocking sets of certain line sets with respect to an elliptic quadric in PG(3, q). 132-147 - Fei Li:
A method to determine algebraically integral Cayley digraphs on finite abelian group. 148-152 - Antonio M. Oller-Marcén:
Further generalizations of the parallelogram law. 153-158 - Stephan Dominique Andres:
Equality Perfect Graphs and Digraphs. 159-178
Volume 15, Number 3, 2020
- Emre Kolotoglu:
A complete solution to the spectrum problem for graphs with six vertices and up to nine edges. 1-24 - Harold S. Connamacher, Julia A. Dobrosotskaya:
On the uniformity of the approximation for r-associated Stirling numbers of the second Kind. 25-42 - Selim Bahadir, Elvan Ceyhan:
A classification of isomorphism-invariant random digraphs. 43-74 - Majid Arezoomand, Mohsen Ghasemi:
Normality of one-matching semi-Cayley graphs over finite abelian groups with maximum degree 3. 75-87 - Ali Behtoei, Mahsa Khatibi, Fatemeh Attarzadeh:
Degree sequence of the generalized Sierpiński graph. 88-97 - Martin Kochol:
Bounds of characteristic polynomials of regular matroids. 98-107 - Wenchang Chu:
Alternating series of Apéry-type for the Riemann zeta function. 108-116 - Shanmugasundaram Priyadarsini, Appu Muthusamy:
Decomposition of complete tripartite graphs into cycles and paths of length three. 117-129 - Shen-Fu Tsai:
Two properties of maximal antichains in strict chain product posets. 130-132 - Nazmiye Yilmaz:
Binomial transforms of the balancing and Lucas-balancing polynomials. 133-144
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