3) Z2-group index theory
Z2不变群指标
1.
In this paper,by critical point and Z2-group index theory,we obtain infinite subharmonic periodic solutions to second-order nonlinear non-autonomous Sturm-Liouville neutral functional differential equations(p(t)(μx (t))+x (t-τ)+μx (t-2τ)) -q(t)x(t)+f(t,x(t),x(t-τ),x(t-2τ))=0,|μ|<1/2.
本文通过变分原理和Z2不变群指标,得出了下述二阶中立型泛函微分方程存在无穷多个次调和周期解的充分条件(p(t)(μx′(t))+x′(t-τ)+μx′(t-2τ))′-q(t)x(t)+f(t,x(t),x(t-τ),x(t-2τ))=0,|μ|<1/2。
4) Z_2
Z2
5) Z2 fault block
Z2断块
1.
In order to reduce the well interference and raise the oil reservoir producing degree,water injection tracing agent technique was utilized in Z2 fault block monitoring,to further understand the displacing direction,velocity,and sweep range of the injected water,as well as the conditions of substratum communication and flooded horizons.
为减少层间干扰,提高油层动用程度,通过在Z2断块Z2-1井组监测井采用注水示踪剂技术,进一步了解注入水的驱替方向、速度、波及范围以及小层连通、水淹层位等情况。
6) (Z2)k-action
(Z2)k作用
1.
Let Jrn,k denote the set of n-dimensional cobordism classes containing a representative Mn admitting a(Z2)k-action with fixed point set of constant codimension r.
设(Z2)k作用于光滑闭流形Mn上,其不动点集具有常维数n-r,Jnr,k是具有上述性质的未定向的n维上协边类[Mn]构成的集合。
补充资料：AR指标
AR指标——
AR指标又称人气指标或买卖气势指标，是反映市场当前情况下多空双方争斗结果的指标之一。市场人气旺则多方占优，买入活跃，股价上涨；反之，人气低落，交易稀少，人心思逃，则股价就会下跌。AR指标的计算公式和参数为：多方强度＝H－0，空方强度＝O－L。H—当日的最高价，L—当日的最低价，O—当日的开盘价。AR（N）＝P1/P2×100；P1(N)＝∑(H－O)，P2(N)＝∑(O－L)。从式中可以看出，AR表示N天以来多空双方总的强度的比值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条