Poincare group

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【物】庞加莱群

In the third chapter we start with the Poincare group and construct various unitary representations in suitable Hilbert spaces.
第三章我们从庞加莱群着手构造合适的希尔伯特空间的多种幺正表象。
The conical limit set of convergence group is studied and that and the Lebesgue measure of the conical limit set is equal to zero when the Poincare series of discrete convergence group converge is proved.
研究了一般收敛群的锥形极限集，并证明了当离散收敛群的Poincare级数收敛时，其锥形极限集的Lebesgue测度为零。
As the patterns of R-R interval Poincare plots were concerned, the control group was mainly of comet-shaped pattern, the simple diabetes mellitus group was mainly of torpedo-shaped pattern, while the DN group and the DC group had more irregular patterns.
比较RR间期散点图，对照组多为彗星状，单纯糖尿病组多为鱼雷状，而糖冠组及糖肾组则有较多表现为不规则的散点图。
The results showed that ( 1) Poincare map of CHD group showed frequently the shapes of torpedo and short stick, the map of normal group showed frequently the shapes of comet;
结果：1.冠心病组Poincare图以鱼雷状、短棒状多见；正常组以慧星状为主，两组有显著差异。