Standing on the new viewpoint of fractional integration, KPSS test and LW test can find long memory of return and its volatility in Chinese stock market.
从分整特性的新视角，利用KPSS检验和LW检验对我国股市收益及其波动的记忆性特征进行了深入研究。
Then we go on with the correlation between multi-variable: fractional co-integration and co-persistence in variance, and discuss their modeling method.
然后 ，指出了多个变量波动之间协同关系的研究方法 ：分数维协整和方差协同持续 ，并介绍了各自的建模方法。
Then we go on with the correlation between multi-variable: fractional co-integration and co-persistence in variance, and discuss their modeling method.
然后 ，指出了多个变量波动之间协同关系的研究方法 ：分数维协整和方差协同持续 ，并介绍了各自的建模方法。
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