论文标题
纤维和加泰罗尼亚人数的交叉数字
Intersection numbers on fibrations and Catalan numbers
论文作者
论文摘要
在椭圆表面或三倍上,当一个人试图计算自动等效性在Bridgeland稳定性歧管上时,会出现加泰罗尼亚的数字。我们解释了为什么通过识别纤维化环中的一类方程来发生这种情况,在该方案中,解决方案始终涉及加泰罗尼亚的数字。
On an elliptic surface or threefold, Catalan numbers appear when one tries to compute the autoequivalence group action on the Bridgeland stability manifold. We explain why this happens by identifying a class of equations in the Chow ring of a fibration, where the solutions always involve Catalan numbers.