Journal of Inequalities and Applications
Volume 6 (2001), Issue 4, Pages 463-471
doi:10.1155/S1025583401000285
Abstract
Let f be an entire function and zk(f)(k=1,2,…) be the zeros of f. Inequalities for the sums ∑k=1j|zk(f)|−1
(j=1,2,…) are derived. Under some restrictions they improve the Hadamard theorem.