Carlo Hämäläinen

collaborators

2 papers

math.CO2010

Multi-latin squares

Nicholas Cavenagh, Carlo Hamalainen, James G. Lefevre +1

A multi-latin square of order $n$ and index $k$ is an $n \times n$ array of multisets, each of cardinality $k$ , such that each symbol from a fixed set of size $n$ occurs $k$ times i…

math.CO2009

An enumeration of equilateral triangle dissections

Ales Drapal, Carlo Hamalainen

We enumerate all dissections of an equilateral triangle into smaller equilateral triangles up to size 20, where each triangle has integer side lengths. A perfect dissection has no…