J. P. Costalonga

activity

20122021

most citedA splitter theorem on 3-connected matroids and graphs

6 citations · 12 across the 10 of their papers we have counts for

collaborators

Showing 2015Show all

2 papers · 1 filter

math.CO2015

Toroidal boards and code covering

João Paulo Costalonga

We denote by $F_{q}$ the field with $q$ elements. A radius- $r$ extended ball with center in a $1$ -dimensional vector subspace $V$ of $F_{q}^{3}$ is the set of elements…

math.CO2015★ 3 cited

Contractible edges in 3-connected graphs that preserve a minor

João Paulo Costalonga

Let $G$ be a $3$ -connected graph with a $3$ -connected (or sufficiently small) simple minor $H$ . We establish that $G$ has a forest $F$ with at least $\left\lceil(|G|-|H|+1)/2\right…