Extremal contractions, stratified Mukai flops and Springer maps

• Autores: Baohua Fu
• Localización: Advances in mathematics, ISSN 0001-8708, Vol. 213, Nº 1, 2007, págs. 165-182
• Idioma: inglés
• DOI: 10.1016/j.aim.2006.12.004
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• Resumen

  • We prove that two Springer maps of the same degree over a nilpotent orbit closure are connected by stratified Mukai flops, and the latter is obtained by contractions of extremal rays of a natural resolution of the nilpotent orbit closure.