3 papers
math.AG2026
Tropicalizing polynomial strata
Yan Mary He, Chenxi Wu
Let be the ramification stratum in the parameter space of degree complex polynomials consisting of polynomials with ramification profile $\vecμ…
cs.LG2025
Activation degree thresholds and expressiveness of polynomial neural networks
Bella Finkel, Jose Israel Rodriguez, Chenxi Wu +1
We study the expressive power of deep polynomial neural networks through the geometry of their neurovariety. We introduce the notion of the activation degree threshold of a network…
math.GT2025
Relative train tracks and generalized endperiodic graph maps
Yan Mary He, Chenxi Wu
Motivated by the work of Cantwell-Conlon-Fenley on endperiodic homeomorphisms of infinite type surfaces, we define and study endperiodic and generalized endperiodic maps of an infi…