---
res:
  bibo_abstract:
  - "We continue a line of research which studies which hereditary families of digraphs
    have bounded dichromatic number. For a class of digraphs  C, a hero in  C  is
    any digraph  H\r\n  such that  H -free digraphs in  C  have bounded dichromatic
    number. We show that if  F\r\n  is an oriented star of degree at least five, the
    only heroes for the class of  F -free digraphs are transitive tournaments. For
    oriented stars  F  of degree exactly four, we show the only heroes in  F -free
    digraphs are transitive tournaments, or possibly special joins of transitive tournaments.
    Aboulker et al. characterized the set of heroes of  {H,K1+P2→} -free digraphs
    almost completely, and we show the same characterization for the class of  {H,rK1+P3→}
    -free digraphs. Lastly, we show that if we forbid two \"valid\" orientations of
    brooms, then every transitive tournament is a hero for this class of digraphs.@eng"
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Alvaro
      foaf_name: Carbonero, Alvaro
      foaf_surname: Carbonero
  - foaf_Person:
      foaf_givenName: Hidde
      foaf_name: Koerts, Hidde
      foaf_surname: Koerts
  - foaf_Person:
      foaf_givenName: Benjamin
      foaf_name: Moore, Benjamin
      foaf_surname: Moore
      foaf_workInfoHomepage: http://www.librecat.org/personId=6dc1a1be-bf1c-11ed-8d2b-d044840f49d6
  - foaf_Person:
      foaf_givenName: Sophie
      foaf_name: Spirkl, Sophie
      foaf_surname: Spirkl
  bibo_doi: 10.1016/j.ejc.2024.104104
  bibo_volume: 125
  dct_date: 2025^xs_gYear
  dct_identifier:
  - UT:001400113700001
  dct_isPartOf:
  - http://id.crossref.org/issn/0195-6698
  dct_language: eng
  dct_publisher: Elsevier@
  dct_title: On heroes in digraphs with forbidden induced forests@
...