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Results tagged with co.combinatorics
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user 161863
Enumerative combinatorics, graph theory, order theory, posets, matroids, designs and other discrete structures. It also includes algebraic, analytic and probabilistic combinatorics.
3
votes
0
answers
76
views
Littlewood Offord for odd number of real numbers
One version of the Littlewood-Offord problem states that if $a_1, \ldots, a_n$ are real numbers with absolute value at least $1$, then the number of sequences $\varepsilon_1, \ldots, \varepsilon_n$ wi …
- 93
6
votes
1
answer
178
views
On a limit involving a transform of the chromatic polynomial
I was playing around with the chromatic polynomial (denoted here by $\chi_G(x)$) and I have made the following conjecture.
Let $(G_n)_{n \ge 1}$ be a sequence of graphs with $v(G_n) \to \infty$ ($v(G_ …
- 93