Let 𝐺 be a graph of order 𝑛. For 𝑖 = 1,2,...,𝑛, let 𝑑𝑖 be the degree of the vertex 𝜐𝑖 of 𝐺. The Sombor matrix 𝒜𝑠𝑜 of 𝐺 is defined so that its (𝑖,𝑗)-entry is equal to d i 2 + d j 2 if ...