@Article{JMS-49-1, author = {Zhu, Xue-Qin and Tian, Gui-Xian and Shu-Yu, Cui}, title = {Spectra of Corona Based on the Total Graph}, journal = {Journal of Mathematical Study}, year = {2016}, volume = {49}, number = {1}, pages = {72--81}, abstract = {
For two simple connected graphs $G_1$ and $G_2$, we introduce a new graph operation called the total corona $G_1⊛G_2$ on $G_1$ and $G_2$ involving the total graph of $G_1.$ Subsequently, the adjacency (respectively, Laplacian and signless Laplacian) spectra of $G_1⊛G_2$ are determined in terms of these of a regular graph $G_1$ and an arbitrary graph $G_2.$ As applications, we construct infinitely many pairs of adjacency (respectively, Laplacian and signless Laplacian) cospectral graphs. Besides we also compute the number of spanning trees of $G_1⊛G_2.$
}, issn = {2617-8702}, doi = {https://doi.org/10.4208/jms.v49n1.16.09}, url = {https://global-sci.com/article/87792/spectra-of-corona-based-on-the-total-graph} }