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math.CO2012★ 2 cited
Matroid and Tutte-connectivity in infinite graphs
Henning Bruhn
We relate matroid connectivity to Tutte-connectivity in an infinite graph. Moreover, we show that the two cycle matroids, the finite-cycle matroid and the cycle matroid, in which a…
math.CO2012
Minimal bricks have many vertices of small degree
Henning Bruhn, Maya Stein
We prove that every minimal brick on n vertices has at least n/9 vertices of degree at most 4.