Talk:Near polygon

n or n - 1?

Red article:

Take the partitions of {1, 2,..., 2n+2} into n+1 2-subsets as points and the partitions into n 2-subsets and one 4-subset as lines. A point is incident to a line if as a partition it is a refinement of the line.

Read paper:

Let n∈N. With every set X of size 2n+2, there is associated a point-line geometry $H_{n}(X)$: the points of $H_{n}(X)$ are the partitions of X in n+1 subsets of size 2; the lines of $H_{n}(X)$ are the partitions of X in n−1 subsets of size 2 and 1 subset of size 4; a point p of $H_{n}(X)$ is incident with a line L of $H_{n}(X)$ if and only if the partition corresponding to p is a refinement of the partition corresponding to L.

So, must be n or n-1? Jumpow (talk) 09:02, 21 August 2017 (UTC)

What is point graph?

Read:

out that regular near 2d-gons are precisely those near 2d-gons whose point graph is a distance-regular graph.

This term have to be explained (with definition, with link to other article or by reference to book). Jumpow (talk) 11:57, 21 August 2017 (UTC)