Computational Complexity

Computational Complexity and other fun stuff in math and computer science from Lance Fortnow and Bill Gasarch

Wednesday, August 19, 2026

Centaur Math

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In the past, new PhD students would ask how they could succeed when they had to compete with the likes of say, Richard Karp or Avi Wigderson...
3 comments:
Sunday, August 16, 2026

IIT is the canary in the coalmine (Do our younger readers know what that means? Do we have younger readers?)

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Lance has posted about his, and around 160 others, being laid off from IIT  here .(IIT stands for Illinois Institute of Technology which is ...
16 comments:
Wednesday, August 12, 2026

Unexpected Unemployment

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Enjoying Idaho while ignoring Illinois Today is the first day of my life that I am unemployed. And not by choice. As I mentioned on LinkedIn...
20 comments:
Sunday, August 09, 2026

Math Concepts With Funny Names

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(Some of this came from a Reddit post  I read, and some of  the comments on it.)  Here are theorems with names that I think are funny or unu...
9 comments:
Sunday, August 02, 2026

A problematic category on Jeopardy Raises a Good Question

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I was watching a Jeopardy from 2004 (The Game Show Channel is rerunning Ken Jennings streak) and the following question raises a good questi...
5 comments:
Sunday, July 26, 2026

Would Erdos have been happy with the resolution of the Erdos Unit Distance Problem? How to find out?

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Let's say there is a statement in math T that you wonder whether it's true or false.  You may even make a conjecture of which way it...
12 comments:
Wednesday, July 22, 2026

Complexity Class of the Week: \(L_2^P\)

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Back in the 90s when I was a young professor at the University of Chicago, we would have a Complexity Class of the Week  where I would take ...
1 comment:
Sunday, July 19, 2026

Bipartite Perfect Matching in Deterministic NC

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Nutan Limaye and Thore Husfeldt guest post on the new deterministic parallel algorithm for bipartite perfect matching by Abhranil Chatterje...
8 comments:
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