Independence fractals of fractal graphs

Document Type : Research Paper

Authors

1 Department of Mathematics, M E S Mampad College, Malappuram, India

2 MPSTME, NMIMS University Mumbai, Mumbai, India

Abstract

For an ordered subset W={w1,w2,...,wk} of V(G) and a vertex vV, the metric representation of v with respect to W is a k-vector, which is defined as r(v/W)={d(v,w1),d(v,w2),...,d(v,wk)}. The set W is called a resolving set for G if r(u/W)=r(v/W) implies that u=v for all u,vV(G). The minimum cardinality of a resolving set of G is called the metric dimension of G. For two graphs G and H, the lexicographic product  GH of H by G is obtained from G by replacing each vertex of G with a copy of H. A graph G is considered fractal if a graph Γ exists, with at least two vertices, such as GΓG. This paper intends to discuss the fractal graph of some graphs and corresponding independence fractals. Also, compare the independent fractals of the fractal graph G, fractal factor Γ and ΓG.

Keywords

[1] J.I. Brown, K. Dilcher and R.J. Nowakowski, Roots of independence polynomials of well covered graphs, J. Alg. Combin. 11 (2000), 197–210.
[2] J.I. Brown, C.A. Hickman and R.J. Nowakowski, The independence fractal of a graph, J. Combin. Theory, Ser. B 87 (2003), no. 2, 209–230.
[3] J.I. Brown, C.A. Hickman and R.J. Nowakowski, On the location of roots of independence polynomial, J. Alg. Combin. 19 (2004), 273–282.
[4] J.I. Brown, C.A. Hickman and R.J. Nowakowski, The k-fractal of a simplicial complex, Discrete Math. 285 (2004), 33–45.
[5] G. Chartrand, L. Eroh, M.A. Johnson and O.R. Oellermann, Resolvability in graphs and the metric dimension of a graph, Discrete Appl. Math. 105 (2000), no. 1, 99–113.
[6] F. Harary, Graph Theory, Addison-Wesley Publishing Company, Inc., Reading, Massachusetts, 1969.
[7] F. Harary and R.A. Melter, On the metric dimension of a graph, Ars Combin. 2 (1976), no. 2, 191–195.
[8] C. Hernando, M. Mora, I.M. Pelayo, C. Seara, J. Ceaceres and M.L. Puertas, On the metric dimension of some families of graphs, Electronic Notes Discrete Math. 22 (2005), 129–133.
[9] P. Ille and R. Woodrow, Fractal graphs, J. Graph Theory 91 (2019), no. 1, 53–72.
[10] P. Ille, A proof of a conjecture of Sabidussi on graphs Idempotent under the lexicographic product, Discrete Math. 309 (2009), 3518–3522.
[11] P. Ille and R Woodrow, Decomposition tree of a lexicographic product of binary structures, Discrete Math. 311 (2011), 2346–2358.
[12] P.J. Slater, Leaves of trees, Proc. 6th Southeastern Conf. Combinatorics, Graph Theory Computing, Congr.  14 (1975), no. 37, 549–559.
Volume 14, Issue 10
October 2023
Pages 239-246
  • Receive Date: 05 May 2022
  • Revise Date: 16 June 2022
  • Accept Date: 08 July 2022