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Showing 2011 · math.COShow all
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math.CO2011
The number of points in a matroid with no n-point line as a minor
Jim Geelen, Peter Nelson
For any positive integer we prove that if is a simple matroid with no -point line as a minor and with sufficiently large rank, then $|E(M)|\le \frac{q^{r(M)}-1}{q-1}…
math.CO2011★ 4 cited
Inequivalent Representations of Matroids over Prime Fields
Jim Geelen, Geoff Whittle
It is proved that for each prime field , there is an integer such that a 4-connected matroid has at most inequivalent representations over . We also pro…