3 papers
q-bio.PE2026
Polynomial encoding of rooted trees with branch lengths
Pengyu Liu, Joan Carles Pons, Gerard Ribas
Phylogenetic trees are rooted trees with branch lengths that record genetic divergence or elapsed time, and quantifying differences between them is central to a wide range of evolu…
math.CO2026
Counting Spinal Tree-Child Networks via Word Encodings and Generating Functions
Pau Vives, Anna de Mier, Gabriel Cardona +1
We study the enumeration of spinal tree-child phylogenetic networks, a rigid family of tree-child networks in which all internal vertices lie on a single root--to--leaf path. We pr…
math.CO2026
A -distance for semidirected orchard phylogenetic networks
Gerard Ribas, Joan Carles Pons, Cécile Ané
In evolutionary biology, phylogenetic networks are now widely used to represent the historical relationships between species and population, when this history includes reticulation…