====== 2023-01-12 smoothing nodal curve ======

Discussed with Xiaohan about how to glue and smooth a nodal curve (possibly open). 
  * The story of Kaehler differential. [[https://mathoverflow.net/questions/135921/kaehler-differentials-on-a-nodal-curve | MO]]
  * Rachel Webb's intro to quasi-maps. https://arxiv.org/pdf/1910.07262.pdf
  * Okounkov-Pandharipanda, https://arxiv.org/abs/math/0101147 (I don't know what is this about)
  * Melissa Liu also talked about how to deal with moduli space of curves with boundary and internal marked points.