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math.CO2026
On Agreement Subtrees in Multiple Phylogenetic Trees
Bryan Currie, Éva Czabarka, Mareike Fischer +3
Snir and Yuster [Discrete Appl. Math. 347 (2026) 160--171] asked for the least number such that unrooted binary phylogenetic trees on the same leaves always share…
math.CO2026
Curious crossing-critical edges
Éva Czabarka, Alec Helm
Motivated by Kuratowski's theorem, a Kuratowski subgraph of a graph is a subgraph that is a subdivided or a subdivided . An edge is crossing-critical if the crossing…