论文标题
从拖鞋到差异组
From flops to diffeomorphism groups
论文作者
论文摘要
我们展示了许多封闭的复杂表面的例子，其差异组并不简单地连接，并且包含与符号呈现循环的循环。
We exhibit many examples of closed complex surfaces whose diffeomorphism groups are not simply-connected and contain loops that are not homotopic to loops of symplectomorphisms.
