English

$A_\alpha$-energy of graphs formed by some unary operations

Combinatorics 2024-04-08 v1

Abstract

Let GG be a graph on pp vertices with adjacency matrix A(G)A(G) and degree matrix D(G)D(G). For each α[0,1]\alpha \in [0, 1], the AαA_\alpha-matrix is defined as Aα(G)=αD(G)+(1α)A(G)A_\alpha (G) = \alpha D(G) + (1 - \alpha)A(G). In this paper, we compute the AαA_\alpha-characteristic polynomial, AαA_\alpha-spectra and AαA_\alpha-energy of some non-regular graphs obtained from unary operations on graphs like middle graph, central graph, m-splitting, and closed splitting graph. Also, we determine the AαA_\alpha-energy of regular graphs like m-shadow, closed shadow, extended bipartite double graph, iterated line graph and m-duplicate graph. Furthermore, we identified some graphs that are AαA_\alpha-equieneregetic and AαA_\alpha-borderenergetic.

Keywords

Cite

@article{arxiv.2404.03905,
  title  = {$A_\alpha$-energy of graphs formed by some unary operations},
  author = {Najiya V K and Chithra A},
  journal= {arXiv preprint arXiv:2404.03905},
  year   = {2024}
}