Corrigendum to “Combinations of some spectral invariants and Hamiltonian properties of graphs, Contrib. Math. 1 (2020) 54–56”

There are misprints in the paper [1]. On the fourth line in the section of Introduction on Page 54, the “Define G1(n, k) := Kk ∨K k+1 where k ≥ 2 and G2(n, k) := Kk ∨K k+2 where k ≥ 1” should be “Define G1(n, k) := Kn−k−1 ∨K k+1 where k ≥ 2 and G2(n, k) := Kn−k−2 ∨K k+2 where k ≥ 1”. Because of the above changes, the following changes should be made, accordingly. • At the end of Proof of Theorem 1.1 on Page 55, “G is G1(n, k)” should be changed into “G is Kk ∨K k+1”. • At the end of Proof of Theorem 1.2 on Page 56, “G is G2(n, k)” should be changed into “G is Kk ∨K k+2”.