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Results tagged with co.combinatorics
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user 35575
Enumerative combinatorics, graph theory, order theory, posets, matroids, designs and other discrete structures. It also includes algebraic, analytic and probabilistic combinatorics.
10
votes
Spencer-Brown's claimed proof of the four color theorem
I spent some time with this a couple of years ago out of curiosity, but did not make it any farther than you're like to be able to find online. The water is definitely murky.
Here is a discussion of …
- 8,467
1
vote
2
answers
410
views
Partitions into 0,1, and 2 with a partial sum condition.
On a tangent to a problem I've been working on, I've run into a combinatorial/partition-theoretic problem that I wondered if anyone had run into before.
Let $N$ be a positive integer, and ad-hoc-ly …
- 8,467