标题： 场论中的张量计算新算法 显示英文标题

标题： New Algorithm for Tensor Calculation in Field Theories

摘要： 张量后缀缩并的计算由一个C程序完成。 张量以图形方式表示，该算法利用了图的拓扑结构。 弱场微扰方法中的经典和量子引力是一个特别的兴趣点。 给出了某些一般不变量如$R_{\mn\ls}R^{\mn\ls}$的领先阶计算示例。 对Weyl异常计算的应用进行了评论。 显示英文摘要

摘要： Tensor calculation of suffix-contraction is carried out by a C-program. Tensors are represented graphically, and the algorithm makes use of the topology of graphs. Classical and quantum gravity, in the weak-field perturbative approach, is a special interest. Examples of the leading order calculation of some general invariants such as $R_{\mn\ls}R^{\mn\ls}$ are given. Application to Weyl anomaly calculation is commented.