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math.CO2023
Packing -connectors in graphs needs more connectivity
Roman Čada, Adam Kabela, Tomáš Kaiser +1
Strengthening the classical concept of Steiner trees, West and Wu [J. Combin. Theory Ser. B 102 (2012), 186--205] introduced the notion of a -connector in a graph with a set…
math.CO2023
Fan's lemma via bistellar moves
Tomáš Kaiser, Matěj Stehlík
Pachner proved that all closed combinatorially equivalent combinatorial manifolds can be transformed into each other by a finite sequence of bistellar moves. We prove an analogue o…