一类一维齐次Moran集的维数结果

为了研究一维齐次Moran集的维数,利用由基本区间形成的连通分支构造了一类■齐次Moran集,证明该类集合的packing维数和上盒维数在■时为所有一维齐次Moran集对应维数的最小值。此外,对于该类集合的上盒维数,得到在一些条件下的取值范围,并找到其达到准确值的一个充分条件。     

广义{mk}-拟齐次Cantor集的Hausdorff维数介值性

为了进一步探索Hausdorff维数的取值介于两最值之间的齐次Moran集的结构，引进了广义{m_k}-拟齐次Cantor集。运用质量分布原理讨论该类集合的Hausdorff维数，证明了对任意介于齐次Moran集Hausdorff维数的最大值与最小值之间的值，都存在一类广义{m_k}-拟齐次Cantor集，使得其Hausdorff维数与该值相等。     

一类裁元齐次Moran集的Hausdorff维数

将齐次Moran集迭代过程中的k项序列集Dk={(i1,…,ik):1≤ij≤nj,1≤j≤k} 裁减为Dk={(i1,…,ik):1≤ij≤nj,当ij-1=1时ij≠2,2≤j≤k},确定了相应的裁元齐次Moran集的Hausdorff维数.     

裁元齐次Moran集的Hausdorff维数

将齐次Moran集迭代过程中的k项序列集Dk={(i1,…,ik):1≤ii≤nj,1≤j≤k},裁减为Dk={(il,ik):1≤ii≤nj,ii≠2.且ii≠3除非ii-1=1,2≤J≤k},并确定了相应的裁元齐次Moran 集的Hausdorff维数.     

平面上两种特殊齐次Moran集的Hausdorff维数

本文应用质量分布原理给出了平面上两种特殊齐次Moran集的Hausdorff维数。     

齐次cantor集与偏齐次cantor集的关系

利用投影的方法得到了在一定条件下,齐次Cantor集与偏齐次Cantor集是可以相等的,并给出了具体的结论和证明．     

一类康托集的维数性质

讨论了由两个广义Cantor集相交生成的分形集,利用Moran集的维数性质,探讨了在满足一定条件下此分形集合的维数性质.     

齐次自相似集的多重分形谱分析

给出了齐次自相似集满足分离性质的一个充分条件,对于直线上的一致压缩映射族,若齐次压缩比小于各个压缩映射平移量之间的最小距离,则相应齐次自相似集满足开集条件,从而它的各种多重分形谱都相等,于是得到了重分形谱的一个简便求法.     

关于线性方程组解的几点注记

本文利用极大无关组给出非齐次线性方程组解集的描述，并证明了在一定条件下的有限个线性无关的向量组均可作为某非齐次线性方程组解集的极大无关组。     

R~3中一类齐次Moran集的Hausdorff维数

本文重新构造了三维空间中单位正方体类似Cantor集,得到R~3中一类齐次Moran集,记此Moran集类为M{J,{l_k},{n_k,c_k}},并采用单调收敛定理和位势理论研究出它们的维数相同,并给出具体的Hausdorff维数.     

Moran sets and Moran classes

The purpose of this survey is to present Moran sets and Moran classes which generalize the classical selfsimilar sets from the following points: (i) The placements of the basic sets at each step of the constructions can be arbitrary; (ii) the contraction ratios may be different at each step; and (iii) the lower limit of the contraction ratios permits zero. In this discussion we will present geometrical properties and results of dimensions of these sets and classes, and discuss conformai Moran sets and random Moran sets as well.     

平面上两个数字集生成的一类Moran测度的谱性

设Mn=(anbn)(n≥1)为任意扩张矩阵,D={(00),(10)}? Z2.该文通过构造一维2个数字集生成Moran测度的谱,得到了 Moran测度μMn,D为谱测度的充要条件是an(n≥2)均为偶数,进一步给出了μMn,D的一类谱的结构.     

Dimensions of a class of high-dimensional homogeneous Moran sets and Moran classes

A class of high-dimensional homogeneous Moran sets and Moran classes are introduced and some dimensional properties are studied. The Hausdorff dimension, modified lower box-counting dimension, lower and upper box-counting dimension, and packing dimension of high-dimensional homogeneous and partial homogeneous Cantor sets are determined. Moreover, a kind of fractal E is obtained, which is not regular but with the property Dimw(Ed)=dDimw(E), where w denotes any of the dimensions mentioned above.     

Dimensions of a class of high-dimensional homogeneous Moran sets and Moran class

A class of high-dimensional homogeneous Moran sets and Moran classes are introduced and some dimensional properties are studied. The Hausdorff dimension, modified lower box-counting dimension, lower and upper box-counting dimension, and packing dimension of high-dimensional homogeneous and partial homogeneous Cantor sets are determined. Moreover, a kind of fractal E is obtained, which is not regular but with the property Dimw(Ed)=dDimw(E), where w denotes any of the dimensions mentioned above.     

符号空间上Takagi函数的局部水平集

利用符号空间上Moran集的维数性质,研究符号空间上Takagi函数水平集和局部水平集的维数,对符号空间中任意一点给出其对应局部水平集的维数,最后讨论了局部水平集Hausdorff维数的某种连续性.     

Moran sets in complete metric space

The Hausdorff dimensions and packing dimensions of Moran sets in the (C ,s)- homogeneous space are presented, which generalizes the results of Hua and Rao.     

Dimensional results for the Moran-Sierpinski gasket

In this paper, the dimensional results of Moran-Sierpinski gasket are considered. Moran-Sierpinski gasket has the Moran structure, which is an extension of the Sierpinski gasket by the method of Moran set. By the technique of Moran set, the Hausdorff, packing, and upper box dimensions of the Moran-Sierpinski gasket are given. The dimensional results of the Sierpinski gasket can be seen as a special case of this paper.     

关于模糊粗糙集的一个注记

指出文献[6]中定义的模糊粗糙集的补集不再是模糊粗糙集.为了克服原定义中的缺陷,给出了关于模糊粗糙集的新的补集定义,讨论了相应的运算性质.同时还证明:模糊粗糙集其实就是定义在F格L上的L-模糊集.     

Net measure properties of Moran sets and applications

The Hausdorff and packing dimensions for a class of Moran sets are obtained.