Ali Keskin

collaborators

2 papers

math.NT2015

Non-divisibility of LCM Matrices by GCD Matrices on GCD-closed Sets

Ercan Altınışık, Mehmet Yıldız, Ali Keskin

In this paper, we consider the divisibility problem of LCM matrices by GCD matrices in the ring $M_{n} (Z)$ proposed by Hong in 2002 and in particular a conjecture concerning…

math.CO2015

On the Ilmonen-Haukkanen-Merikoski Conjecture

Ercan Altınışık, Ali Keskin, Mehmet Yıldız +1

Let $K_{n}$ be the set of all $n \times n$ lower triangular (0,1)-matrices with each diagonal element equal to $1$ , $L_{n} = {Y Y^{T} : Y \in K_{n}}$ and let \begin{equation*} c_n = \min_{Z…