---
res:
  bibo_abstract:
  - 'Motivated by the realizability problem for principal tropical divisors with a
    fixed ramification profile, we explore the tropical geometry of the double ramification
    locus in $\mathcal{M}_{g,n}$.There are two ways to define a tropical analogue
    of the double ramification locus: one as a locus of principal divisors, the other
    as a locus of finite effective ramified covers of a tree. We show that both loci
    admit a structure of a generalized cone complex in $M_{g,n}^{trop}$, with the
    latter contained in the former. We prove that the locus of principal divisors
    has cones of codimension zero in $M_{g,n}^{trop}$, while the locus of ramified
    covers has the expected codimension $g$. This solves the deformation-theoretic
    part of the realizability problem for principal divisors, reducing it to the so-called
    Hurwitz existence problem for covers of a fixed ramification type.@eng'
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Martin
      foaf_name: Ulirsch, Martin
      foaf_surname: Ulirsch
      foaf_workInfoHomepage: http://www.librecat.org/personId=114697
  - foaf_Person:
      foaf_givenName: Dmitry
      foaf_name: Zakharov, Dmitry
      foaf_surname: Zakharov
  dct_date: 2019^xs_gYear
  dct_language: eng
  dct_title: Tropical double ramification loci@
...