Let \(G\) be a graph with vertex set \(V(G)\). \(\delta(G)\) minimum degree of \(G\) and \(k\in\left\{1-\left\lceil\frac{\delta(G)}{2}\right\rceil. \ldots . \left\lfloor \frac{\delta(G)}{2}\right\rfloor\right\}\). https://tftoyes.shop/product-category/generation-2/