Expanded degenerations and pairs Journal Article uri icon



  • Since Jun Li's original definition, several other definitions of expanded; pairs and expanded degenerations have appeared in the literature. We explain; how these definitions are related and introduce several new variants and; perspectives. Among these are the twisted expansions used by Abramovich and; Fantechi as a basis for orbifold techniques in degeneation formulas.

publication date

  • October 13, 2011

Full Author List

  • Abramovich D; Cadman C; Fantechi B; Wise J