Edge Rewrite
// HTMLRewriter · presentation

This page was redesigned at the edge.

Cloudflare fetched the original article and streamed it through HTMLRewriter to apply an entirely new visual system without rebuilding the source page.

// request.cf · coarse context

A page that knows where it met you.

Only coarse request metadata is shown. This demo does not display or persist visitor IP addresses.

Country
US
Cloudflare location
CMH
Connection
HTTP/2
Language
Not provided

Ray ID: a22b1046ad41aedd

Jump to content

Talk:Levi graph

Page contents not supported in other languages.
Add topic
From Wikipedia, the free encyclopedia
Latest comment: 13 years ago by David Eppstein in topic incidence graph

incidence graph

[edit]

From Burkhard Polster, p 5:

The complete information about any geometry is contained in its incidence graph This graph is constructed as follows: The vertices of the graph are the points and lines of the geometry, and two vertices of the graph are connected by an edge iff and only if they correspond to a point and a line of the geometry such that the point is contained in the line. A geometry is connected if its incidence graph is connected.

Use of the term Levi graph is missing, but the alternative label applies.Rgdboer (talk) 21:46, 30 August 2012 (UTC)Reply

Ok, I've added it back, but as a proper reference within the text this time rather than merely as something added to the references section without being used within the text. —David Eppstein (talk) 22:07, 30 August 2012 (UTC)Reply