计算主积分：分部积分与微分归约
Counting master integrals: integration by parts vs. differential reduction
摘要：
分部积分和微分归约技术在主积分的计算方面有所不同。这是说明作为一个例子，两个循环日落图与壳运动学。一个新的代数关系的主积分的两个回路日落图，不遵循由部分的集成技术被发现。
英文摘要：
The techniques of integration by parts and differential reduction differ in the counting of master integrals. This is illustrated using as an example the two-loop sunset diagram with on-shell kinematics. A new algebraic relation between the master integrals of the two-loop sunset diagram that does not follow from the integration-by-parts technique is found.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
