James M. Hammer

collaborators

2 papers

math.CO2021

Distance in Latin Squares

Omar Aceval, Paige Beidelman, Jieqi Di +4

A Latin square of order $n$ is an $n \times n$ array which contains $n$ distinct symbols exactly once in each row and column. We define the adjacent distance between two adjacent ce…

math.CO2018

On the Domination Number of Permutation Graphs and an Application to Strong Fixed Points

Theresa Baren, Michael Cory, Mia Friedberg +6

A permutation graph $G_{π}$ is a simple graph with vertices corresponding to the elements of $π$ and an edge between $i$ and $j$ when $i$ and $j$ are inverted in $π$ . A set of vertic…