We prove that if $f(x)=\sum _{k=0}^{n-1}a_{k}x^{k}$ is a polynomial with no cyclotomic factors whose coefficients satisfy $a_{k}$ ≡ 1 mod 2 for 0 ≤ k < n, then ...

This is a preview. Log in through your library . This monthly journal, begun in 1950, is devoted entirely to research in pure and applied mathematics, principally to the publication of original papers ...

Let L = D - A be the Laplacian matrix of a graph G of order n. Let Problem 3 (Mohar [1]): What can be said about the majorizing ordering of all trees of order n. How large chains and antichains of ...