论文标题
Dehn Twist在两个K3表面的总和
The Dehn twist on a sum of two K3 surfaces
论文作者
论文摘要
Ruberman举了第一个示例的四个manifolds的自我扩张型，这是对拓扑类别的身份同位素的同位素，但并非如此。我们在两个K3表面的连接总和中使用Dehn Twist沿着Dehn Twist提供了另一个例子。
Ruberman gave the first examples of self-diffeomorphisms of four-manifolds that are isotopic to the identity in the topological category but not smoothly so. We give another example of this phenomenon, using the Dehn twist along a 3-sphere in the connected sum of two K3 surfaces.
