复杂金融网络收益率加权和的不变性研究

《乐记》现存两个文本，即《礼记·乐记》和《史记·乐书》。通过比较发现，两文本间文字书写多有不同，但《乐书》与《史记》的书写方式却有高度的一致性。由此可推测今本《乐书》虽是由后人补入《史记》的，但其中的《乐记》文本却有可能曾为司马迁所亲见并经手，或为司马迁为撰写《乐书》收集、准备的原始资料。这表明《乐记》应是传自先秦的一种关于礼乐文化的古文献，《乐记》在西汉多本并存、分途传播的事实也可证明此点。

Studies on Invariance of Weighted Sum of Return Rate in Complex Financial Network

Now there are two versions of Yueji. They are Yueji in Liji and Yueshu in Historical Records. Comparatively speaking there is much difference between the text dictions of the two works. But the text dictions of Yueshu and Historical Records are very similar.From this we can conclude that modern version of Yueshu was added to Historical Records by later historians. The text of Yueji in Historical Records might be the data experienced and gathered for the composition of Yueshu by Sima Qian. It shows that Yueshu comes from the ancient documents of Li and Yue cultures of early Qin Dynasty. This is also proved by the fact that there were many versions of Yueji in existence and distribution in Xihan Dynasty.