Abstract
For an ordered non-empty subset \( S=\{v_1,\ldots , v_k\}\) of vertices in a connected graph G and an l-clique \(V'\) of G, the l-clique metric S-representation of \(V'\) is the vector \(r^l_G(V'|S) = (d_G(V',v_1), \ldots , d_G(V',v_k))\,\) where \(d_G(V',v_i)=\min \{d_G(v,v_i): v\in V'\}\). A non-empty subset S of V(G) is an l-clique metric generator for G if all l-cliques of G have pairwise different l-clique metric S-representations. An l-clique metric generator of smallest order is an l-clique metric basis for G, its order being the l-clique metric dimension (l-CMD for short) \(\mathrm{cdim}_l(G)\) of G. In this paper, we propose this concept as an extension of the 1-clique metric dimension which is known as the metric dimension, and also study some its properties. Moreover, l-CMD for \(\Gamma ({\mathbb {Z}}_n)\) and the corona product of two graphs is investigated. Furthermore, we prove that computing the l-CMD of connected graphs is NP-hard and present an integer linear programming model for finding this parameter.
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Communicated by Sanming Zhou.
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Afkhami, M., Khashyarmanesh, K. & Tavakoli, M. l-Clique Metric Dimension of Graphs. Bull. Malays. Math. Sci. Soc. 45, 2865–2883 (2022). https://doi.org/10.1007/s40840-022-01299-9
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DOI: https://doi.org/10.1007/s40840-022-01299-9