Irregular Webcomic!

Archive     Cast     Forum     RSS     Books!     Poll Results     About     Search     Fan Art     Podcast     More Stuff     Random     Support on Patreon    
Updates: Monday, Tuesday, Thursday, Friday; reruns all other days
<   No. 1476   2007-02-10   >

Comic #1476

1 Me: Hmmm. Having appeared in a comic with Kevin Bacon, I just need to get my other good friend Paul Erdős in a strip to attain an Erdős-Bacon number of 2!
2 Me: The only difficulty is that that would require me to think up a joke involving combinatoric theory.
3 {beat}
4 Me: Well, I'm sure I can arrange something.
4 [small caption]: This comic co-authored by David Morgan-Mar and Paul Erdős

First (1) | Previous (1475) | Next (1477) || Latest Rerun (1513) | Latest New (3591)
First 5 | Previous 5 | Next 5 | Latest 5
Me theme: First | Previous | Next | Latest || First 5 | Previous 5 | Next 5 | Latest 5
This strip's permanent URL: http://www.irregularwebcomic.net/1476.html
Annotations off: turn on
Annotations on: turn off

Paul Erdős was a Hungarian mathematician who worked on various fields of mathematics, and was incredibly prolific in his publications. He was so prolific, that friends of his invented a joke concept known as the Erdős number.

A person's Erdős number is defined as:

This concept has been around for decades, and is well-known within the mathematics research community. It is the origin of the relatively recent Bacon number discussed in recent strips in this very webcomic, which measures a similar form of separation from Kevin Bacon, with the connections being acting appearances in the same film.

This led to the natural extension of the Erdős-Bacon number, being the sum of one's Erdős and Bacon numbers. Since the requirement involves both having a published research paper and having acted in a film, the number of people with well-defined Erdős-Bacon numbers is quite low. Without stretching the strict definitions, the lowest Erdős-Bacon number known is 3, belonging to mathematician Daniel Kleitman, who wrote a paper with Erdős and appeared as an extra in Good Will Hunting, starring Minnie Driver, who appeared in Sleepers with Kevin Bacon.

My favourite, though, is that Natalie Portman has a strictly defined Erdős-Bacon number, which is 6, thanks to her co-authorship on a paper entitled "Frontal Lobe Activation during Object Permanence: Data from Near-Infrared Spectroscopy", published in the journal NeuroImage. Beautiful and smart.

Although, strictly speaking, I don't have a finite Bacon number, I have written published research papers (in astronomy), and one was co-authored with a computer scientist/mathematician. My Erdős number, to the best of my knowledge, is 4:

David Morgan-Mar and Geoff Bailey, "Xvoigt - An interactive absorption line fitting program for the X Window System," Publications of the Astronomical Society of Australia 12 (2), 1995.

Geoff Bailey and Elias Dahlhaus, "Recognition of path graphs in linear time," Theoretical Computer Science (Ravello, 1995), 201-210, World Sci. Publ., River Edge, NJ, 1996.

Elias Dahlhaus and Wayne D. Goddard, "MAD trees and distance-hereditary graphs," Discrete Applied Mathematics 131 (2003), no. 1, 151-167.

Wayne D. Goddard and Paul Erdős, "Crossing families," Combinatorica 14 (1994), no. 2, 127-134.

Oh, and by the way, Paul Erdős' major field of research was combinatoric theory, a major part of which deals with permuting, or arranging, things.
2016-10-22 Rerun commentary: The worst thing about writing about Paul Erdős is that his name uses a Hungarian double acute accent, which is different from an umlaut and doesn't have an easy-to-remember HTML entity code, so every time I type it in I have to look it up or copy it from existing text.

I'd like to see a band adopt a name that instead of using a gratuitous heavy metal umlaut instead uses a heavy metal double acute accent. Something like: Gőatcrűsher.

LEGO® is a registered trademark of the LEGO Group of companies, which does not sponsor, authorise, or endorse this site.
This material is presented in accordance with the LEGO® Fair Play Guidelines.

Irregular Webcomic! | Darths & Droids | Planet of Hats | The Prisoner of Monty Hall
mezzacotta | Lightning Made of Owls | Square Root of Minus Garfield | The Dinosaur Whiteboard | iToons | Comments on a Postcard | Awkward Fumbles
Last Modified: Saturday, 22 October 2016; 03:11:04 PST.
© 2002-2017 Creative Commons License
This work is copyright and is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported Licence by David Morgan-Mar. dmm@irregularwebcomic.net