使用堆栈对曲线施加相切条件
Using stacks to impose tangency conditions on curves
摘要:
我们定义了一个Deligne-Mumford栈X_{D,r},它依赖于一个方案X,一个有效的Cartier因子D \subset X和一个正整数r。然后我们证明了稳定映射到X_{D,r}的Abramovich-Vistoli模栈提供了\bar{M}_{g,n}(X,β)中对应于相对稳定映射的局部闭子栈的紧化.
英文摘要:
We define a Deligne-Mumford stack X_{D,r} which depends on a scheme X, an effective Cartier divisor D\subset X, and a positive integer r. Then we show that the Abramovich-Vistoli moduli stack of stable maps into X_{D,r} provides compactifications of the locally closed substacks of \bar{M}_{g,n}(X,β) corresponding to relative stable maps.
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