Parabolic sheaves with real weights as sheaves on the Kato-Nakayama space

Abstract

We define quasi-coherent parabolic sheaves with real weights on a fine saturated log analytic space, and explain how to interpret them as quasi-coherent sheaves of modules on its Kato-Nakayama space. This recovers the description as sheaves on root stacks of arXiv:1001.0466 and arXiv:1410.1164 for rational weights, but also includes the case of arbitrary real weights.

arXiv commentv2: implemented referee's suggestions. 40 pages. Final version, to appear in Advances in Mathematics