English

From amoebas to pluripotential theory on hybrid analytic spaces

Algebraic Geometry 2025-10-20 v2 Complex Variables Differential Geometry

Abstract

These lecture notes are an introduction to the use of non-Archimedean geometry in the study of meromorphic degenerations of complex algebraic varieties. They provide a self-contained discussion of hybrid spaces, which fill in one-parameter degenerations with the associated non-Archimedean Berkovich space as a central fiber. The main focus is on the interplay between complex and non-Archimedean pluripotential theory, and on the relation between convergence of psh metrics and the associated Monge-Ampere measures in the hybrid space, following work of the author with M.Jonsson, and recent breakthrough work by Y.Li.

Keywords

Cite

@article{arxiv.2510.10239,
  title  = {From amoebas to pluripotential theory on hybrid analytic spaces},
  author = {Sebastien Boucksom},
  journal= {arXiv preprint arXiv:2510.10239},
  year   = {2025}
}

Comments

57 pages, expanded version of lectures at the 2024 CIME school `Calabi-Yau varieties'. v2: typos fixed