%0 Journal Article %J Communications in Algebra. Volume 41, Issue 6, May 2013, Pages 2346-2386 %D 2013 %T Expanded degenerations and pairs %A Dan Abramovich %A Charles Cadman %A Barbara Fantechi %A Jonathan Wise %K Expanded pairs %X 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. %B Communications in Algebra. Volume 41, Issue 6, May 2013, Pages 2346-2386 %I Taylor and Francis %G en %U http://hdl.handle.net/1963/7383 %1 7431 %2 Mathematics %4 1 %# MAT/05 ANALISI MATEMATICA %$ Submitted by Maria Pia Calandra (calapia@sissa.it) on 2014-06-18T09:55:33Z No. of bitstreams: 1 1110.2976v1.pdf: 418919 bytes, checksum: 61308c478c1e11ea1c389bd98e227cd2 (MD5) %R 10.1080/00927872.2012.658589