Main Subjects = Graph theory
The crossing numbers of join products of $K_4\cup K_1$ with cycles

Volume 10, Issue 4, December 2025, Pages 933-948

10.22049/cco.2024.28761.1706

Michal Staš; Maria Timková


Set colorings of the Cartesian product of some graph families

Volume 10, Issue 4, December 2025, Pages 1001-1016

10.22049/cco.2024.29090.1840

Mark Anthony C. Tolentino; Janree Ruark C. Gatpatan; Timothy Robin Y. Teng


On the zero forcing number of complementary prism graphs

Volume 10, Issue 3, September 2025, Pages 519-530

10.22049/cco.2023.27819.1362

M.R. Raksha; Charles Dominic


A characterization of locating Roman domination edge critical graphs

Volume 10, Issue 3, September 2025, Pages 531-537

10.22049/cco.2023.29108.1853

H. Abdollahzadeh Ahangar; H. Rahbani; M.R. Sadeghi


A new construction of regular and quasi-regular self-complementary graphs

Volume 10, Issue 3, September 2025, Pages 595-599

10.22049/cco.2024.28939.1790

Lata Kamble; Charusheela Deshpande; Bhagyashree Athawale


Total coalitions of cubic graphs of order at most 10

Volume 10, Issue 3, September 2025, Pages 601-615

10.22049/cco.2024.29015.1813

Hamidreza Golmohammadi


Restrained double Roman domatic number

Volume 10, Issue 3, September 2025, Pages 617-625

10.22049/cco.2024.28703.1678

Lutz Volkmann


A short note on double Roman domination in graphs

Volume 10, Issue 3, September 2025, Pages 627-629

10.22049/cco.2024.28751.1704

Abdelhak Omar; Ahmed Bouchou


On distance Laplacian spectral invariants of brooms and their complements

Volume 10, Issue 3, September 2025, Pages 631-656

10.22049/cco.2024.28835.1743

Bilal A. Rather; Hilal A. Ganie; Mustapha Aouchiche


$k$-secure sets and $k$-security number of a graph

Volume 10, Issue 2, June 2025, Pages 245-255

10.22049/cco.2023.28048.1427

K. Karthik; Chandru Hegde


Global restrained Roman domination in graphs

Volume 10, Issue 2, June 2025, Pages 295-317

10.22049/cco.2023.28619.1635

Morteza Alishahi; Doost Ali Mojdeh


On odd-graceful coloring of graphs

Volume 10, Issue 2, June 2025, Pages 335-354

10.22049/cco.2023.28736.1692

I Nengah Suparta; Yuqing Lin; Roslan Hasni; I Nyoman Budayana


On the nullity of cycle-spliced $\mathbb{T}$-gain graphs

Volume 10, Issue 2, June 2025, Pages 381-403

10.22049/cco.2024.29772.2155

Adriana Ciampella; Suliman Khan


Injective coloring of generalized Mycielskian of graphs

Volume 10, Issue 2, June 2025, Pages 463-482

10.22049/cco.2023.28389.1526

C.K. Bhanupriya; M.S. Sunitha


The first Leap Zagreb coindex of some graph operations

Volume 10, Issue 2, June 2025, Pages 483-495

10.22049/cco.2023.28395.1562

Asfiya Ferdose; K. Shivashankara


On the Sombor Index of Sierpiński and Mycielskian Graphs

Volume 10, Issue 1, March 2025, Pages 20-56

10.22049/cco.2023.28681.1669

Surabhi Chanda; Radha R. Iyer


Well ve-covered graphs

Volume 10, Issue 1, March 2025, Pages 69-78

10.22049/cco.2023.28186.1469

Razika Boutrig; Mustapha Chellali; Nacéra Meddah


Sharp lower bounds on the metric dimension of circulant graphs

Volume 10, Issue 1, March 2025, Pages 79-98

10.22049/cco.2023.28792.1725

Martin Knor; Riste Škrekovski; Tomáš Vetrík


Graphs with unique minimum edge-vertex dominating sets

Volume 10, Issue 1, March 2025, Pages 99-109

10.22049/cco.2023.28605.1631

B. Senthilkumar; M. Chellali; H. Naresh Kumar; V. B. Yanamandram


Lower General Position in Cartesian Products

Volume 10, Issue 1, March 2025, Pages 110-125

10.22049/cco.2024.29171.1879

Eartha Kruft Welton; Sharif Khudairi; James Tuite


NP-completeness of some generalized hop and step domination parameters in graphs

Volume 10, Issue 1, March 2025, Pages 181-193

10.22049/cco.2023.28699.1676

Ghazale Asemian; Nader Jafari Rad; Abolfazl Tehranian; Hamid Rasouli