序列空间

In view of this, a one dimension polar distance sequence is obtained first from the closed planar curve and then the auto regressive model of this sequence is used to extract feature vector.

从空间旋转不变的要求出发，首先从平面闭合曲线得到一维极径序列，进而采用该序列的自回归模型来完成特征提取并用于平面曲线的形状分类。

As an application, it is proved that a continuous map of an interval is chaotic iff it is distributively chaotic in a sequence.

给出紧度量空间上连续映射按序列分布混沌的一个充分条件，并证明区间连续自映射是混沌的当且仅当它是按某序列分布混沌的。

These two things are what we will study in sectionⅢ. We call them GS and PS. In this section we will study the impact of the two and the relationship between them. Of course, there are some other ways to observe the problem. One of them is to consider the period and the distribution of eigenspace. These are what we will study in sectionⅡ.

这两方面也就是本文中第三章所讲的生成序列和扰动序列，这一章中我们主要研究了这两个因素对分数傅立叶变换算子的影响及它们之间的关系；当然还有另一种看问题的角度就是从算子的周期性和特征子空间的分布的角度，这就是第二章中所介绍的内容，在这里我们给出了两个三周期的分数傅立叶变换算子并比较了其特征性质。

The common denominator of both is 20. 1 applied the Fibonacci sequence to the number 20 and carried the sequence out to 26 places.

两者的共同数字是20.1应用在数目为20的斐波纳契序列上，把序列携带到26处空间。

The frame is a special Besselsequence, which extends the Parseval equality of orthonormal basis in Hilbert space tothe two-sided inequality in general sequence.

框架是一类特殊的Bessel序列，框架是把Hilbert空间中的规范正交基满足的Parseval等式推广到比较一般的序列所满足的双边不等式的结果。

The article defines the generalized variation coefficient and puts forward a new kind of grey incidence model. This kind of model reflects the positive and negative relation of grey incidence degree to some extent. It is only relate to the geometric shape of sequences and has nothing to do with the spatial position of theirs.

首先定义了广义变异系数，并提出一种新的关联度计算方法，该关联度能够反映序列的正相关与负相关关系，并且只与序列的形状有关，而与它们在空间的相对位置无关。

By using theconvergence properties of infinite matrix in E and the sequentially open sets notion,it pr-esents a criterion for the sequential topological vector spaces.

本文首先借助于E中无穷矩阵的收敛性态及序列开集概念给出了E是序列型空间的刻划。

With four continuity of non-additive set function and the relation of four convergences of the measurable function sequence,four forms Lebesgue theorem about measurable closed-valued functions on monotone measure space are discussed,respectively.

在经典测度论中，Lebesgue定理刻画了实值可测函数序列几乎处处收敛和依测度收敛之间的关系。1984~1986年，王震源[9]先后提出了较弱的"自连续"、"零可加"、"伪自连续"、"伪零可加"等重要概念，讨论了模糊测度空间上单值可测函数序列各种收敛之间的关系，推广了经典测度论中著名的Lebesgue定理以及其他定理。

Liu Qihou offered the definition of iterative sequence with error in metric space and proved the convergence of iterative sequence.

LiuQihou提出了度量空间中带有误差的迭代序列的定义，并研究了迭代序列的收敛性。

Analysis of grey models between the environmental essential parameters of seawater and the growth of Prorocentrum sigmoides Bohm in Dapeng Bay,South China Sea;2. The relations between the growth of Noctiluca scintillans, Prorocentrum sigmoides Bohm ,zooplankton and physical,chemical factors of seawater were studied in this paper.

研究大鹏湾夜光藻、反曲原甲藻、浮游动物种群增殖与浮游动物和海水理化因子之间的关系，采用的方法是根据它们的种群增殖态势与浮游动物和理化因子的比较，依据空间理论的数学基础，按照规范性、偶对称性、整体性和接近性这四条原则，确定参考数列（母序列：夜光藻和反曲原甲藻、浮游动物）和若干比较数列（子序列：浮游动物和海水理化因子）之间的关联度。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。