5 citations · 8 across the 6 of their papers we have counts for
Showing math.COShow all
2 papers · 1 filter
math.CO2022
Some further applications of a lattice theoretic method in the study of singular LCM matrices
Mika Mattila, Pentti Haukkanen, Jori Mäntysalo
In 1876 H. J. S. Smith defined an LCM matrix as follows: let S = {x_1, x_2, ..., x_n} be a set of positive integers. The LCM matrix [S] is the n n matrix with lcm(x_i , x_…
math.CO2011★ 1 cited
Some formulas for numbers of line segments and lines in a rectangular grid
Pentti Haukkanen, Jorma K. Merikoski
We present a formula for the number of line segments connecting q+1 points of an n_1 x...x n_k rectangular grid. As corollaries, we obtain formulas for the number of lines through…