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Bibliographic Details
Main Authors: Cornaz, Denis, Kerleau, Sébastien, Royer, Clément W.
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2411.08994
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Table of Contents:
  • Positive spanning sets (PSSs) are families of vectors that span a given linear space through non-negative linear combinations. Despite certain classes of PSSs being well understood, a complete characterization of PSSs remains elusive. In this paper, we explore a relatively understudied relationship between positive spanning sets and strongly edge-connected digraphs, in that the former can be viewed as a generalization of the latter. We leverage this connection to define a decomposition structure for positive spanning sets inspired by the ear decomposition from digraph theory.