作者: Baohua Fu
DOI: 10.1016/J.MATPUR.2009.08.010
关键词: Conjecture 、 Pure mathematics 、 Birational geometry 、 Mathematics 、 Nilpotent 、 Factorial 、 Algebra 、 Lie algebra 、 Nilpotent orbit 、 Nilpotent group 、 Simple (abstract algebra)
摘要: Abstract In a recent preprint, Y. Namikawa proposed conjecture on Q -factorial terminalizations of nilpotent orbit closures and he proved his for classical simple Lie algebras. this paper, we prove exceptional For the birational geometry, contrary to case, two new types Mukai flops appear. We also give classifications in algebras whose normalization has only or terminal singularities.