Nick Brettell

activity

20152026

collaborators

Showing 2018Show all

2 papers · 1 filter

math.CO2018

$N$ -detachable pairs in 3-connected matroids II: life in $X$

Nick Brettell, Geoff Whittle, Alan Williams

Let $M$ be a 3-connected matroid, and let $N$ be a 3-connected minor of $M$ . A pair ${x_{1}, x_{2}} \subseteq E (M)$ is $N$ -detachable if one of the matroids $M / x_{1} / x_{2}$ or $M \backsla…

math.CO2018

$N$ -detachable pairs in 3-connected matroids I: unveiling $X$

Nick Brettell, Geoff Whittle, Alan Williams

Let $M$ be a 3-connected matroid, and let $N$ be a 3-connected minor of $M$ . We say that a pair ${x_{1}, x_{2}} \subseteq E (M)$ is $N$ -detachable if one of the matroids $M / x_{1} / x_{2}$ or…

N-detachable pairs in 3-connected matroids II: life in X

N-detachable pairs in 3-connected matroids I: unveiling X

$N$ -detachable pairs in 3-connected matroids II: life in $X$

$N$ -detachable pairs in 3-connected matroids I: unveiling $X$