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Corona product

From Wikipedia, the free encyclopedia
The corona product of K6 and C4.

In graph theory, the corona product of graphs G and H, denoted , can be obtained by taking one copy of G, called the center graph, and a number of copies of H equal to the order of G. Then, each copy of H is assigned a vertex in G, and that one vertex is attached to each vertex in its corresponding H copy by an edge.[1]

The star edge coloring of a graph G is a proper edge coloring without bichromatic paths and cycles of length four, similar to the star coloring of a graph, but coloring the edges instead of the vertices. The star edge chromatic index of the corona product of a path graph with cycle, wheel, helm and gear graphs are known.[2]

See also

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References

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  1. ^ Gomathi, P.; Murali, R. (2020). "Laceability Properties in Edge Tolerant Corona Product Graphs". TWMS Journal of Applied & Engineering Mathematics. 10 (3): 734–741. ISSN 2146-1147.
  2. ^ Kaliraj, K.; Sivakami, R.; Vivin, J. Vernold (2018). "Star Edge Coloring of Corona Product of Path and Wheel Graph Families" (PDF). Proyecciones - Journal of Mathematics. 37 (4): 593–608. doi:10.4067/S0716-09172018000400593. Retrieved 2025-03-22.
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