标题： 二维引力与拓扑最小模型耦合 显示英文标题

标题： 2d Gravity Coupled to Topological Minimal Models

摘要： 我们讨论了与二维拓扑引力耦合的亏格-0拓扑最小$A_{k + 1}$模型的大相空间的性质。 最小作用量通过添加所有可能的非平凡耦合的引力后代而被扰动，这些后代形成了无限维的大相空间。 推导出一些一般恒等式（在大相空间上成立），并将穿孔方程和稀释剂方程作为这些结果的特例获得。 最后我们展示了如何用定义理论小相空间的平坦坐标来表达对引力后代的耦合。 因此最终大相空间完全由描述耦合模型物质部分的LG超势决定。 显示英文摘要

摘要： We discuss the properties of the large phase space of the genus-0 topological minimal $A_{k + 1}$ model coupled to 2d topological gravity. The minimal action is perturbed by adding all possible gravitational descendants with non-trivial couplings which form the infinite-dimensional large phase space. Some general identities (valid on the large phase space) are derived and the puncture and the dilaton equations are obtained as special cases of these results. Finally we show how the couplings to the gravitational descendants can actually be expressed in terms of the flat coordinates defining the small phase space of the theory. Thus eventually the large phase space becomes determined solely by the LG superpotential characterising the matter sector of the coupled model.