3 papers
math.CO2026
Tropical Fermat--Weber Problems over Non-Finite Data and their Inverse Formulations
John Sabol, Ruriko Yoshida
The term tropical pseudonorm refers to a family of (not necessarily symmetric) gauge functions that arise in tropical or idempotent geometry. An important characteristic of these g…
q-bio.PE2025
Phylogenetics in a warm place: computational aspects of the Tropical Grassmannian
Samir Bhatt, John Sabol, Papri Dey +3
Phylogenetic trees provide a fundamental representation of evolutionary relationships, yet the combinatorial explosion of possible tree topologies renders inference computationally…
math.CO2025
Tropical Fermat-Weber Points over Spaces of -Ultrametrics
Shelby Cox, John Sabol, Roan Talbut +1
We extend reconstruction methods for phylogenetic trees to ultrametrics of arbitrary matroids and study the stability of these data analysis methods in the combinatorial spirit of…