共查询到20条相似文献,搜索用时 15 毫秒
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本文研究了Yang-Lee零点的Julia集的复解析动力系统问题.利用网格及共形迭代函数系统的方法,获得了Yang-Lee零点的Julia集及其Hausdorff维数连续性的结果,推广了乔建永教授在文献[1]中的结果, 相似文献
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Considering the Julia set J(Tλ) of the Yang-Lee zeros of the Potts model on the diamond hierarchical Lattice on the complex plane, the authors proved that HDJ(Tλ) 〉 1 and discussed the continuity of J(Tλ) in Hausdorff topology for λ∈R. 相似文献
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Let W={W(t);t∈R_+~N} be the d-dimensional N-parameter Brownian Sheet. Sufficient conditions for a compact set F(?) Rd \ {0} to be a polar set for W are proved. It is also proved that if 2N ≤d, then for any compact set E (?) R_>~N , 相似文献
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设(Ω,F,μ)为概率空间,v为(Ω,F)上的有限测度的密度定理,并研究了v的维数及维数分布的若干性质。 相似文献
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The authors consider generalized statistically self-affine recursive fractals K with random numbers of subsets on each level. They obtain the Hausdorff dimensions of K without considering whether the subsets on each level are non-overlapping or not. They also give some examples to show that many important sets are the special cases of their models. 相似文献
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TheHAUSDORFFDIMENSIONANDMEASUREOFTHEGENERALIZEDMORANFRACTALSANDFOURIERSERIES¥RENFUThO;LIANGJINRONGAbstract:Thispaperstudiesth... 相似文献
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1GeneralizedGeometricGraphDirectedContructionAgenera1izedgeometricgraphdirectedconstructioninR"consistof(1)afinitesequence0fnonoverlapping,compactsubsetsofRm:J1,J2,''tJn.SuchthateachJihasanonemptyinterior,(2)adirectedgeaPh{G}withvertexsetconsistingoftheintegers1,'',n,andsiAn-laritymapsTf?)ofR".where(i,j)EG,withratiost::),suchthat(a)foreachi,1Si5n.thereissomejsuchthat(i,j)EG.(b)foreachi,{ri:)(J,)I(i,i)EG}isanon0verlappingfandlyand(c)ifthepathc0mponentofGr0tedattheyertexi1isacycIe:Fo… 相似文献
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本文研究了一类由平面上点的表示系统所生成的内部非空的自相似集,证明其边界曲线的一半是三个A-完备集的并集,并给出计算这类完备集的结构矩阵的简单方法,从而利用Marion定理得出这类自相似集边界的Hausdorff维数。 相似文献
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设X^d(t∈R )是d维可分平衡高,过程,在一定条件下,本文得到了x^d(t)多重时Hausdorff维数及Packing维数,Polya过程为其特例。 相似文献
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本文研究了d维平稳高斯过程极集的性质,给出了d维平稳高斯过程广义极性的充分条件,并通过一个特殊的Cantor型集的构造将极集的维数与容度巧妙地结合起来,得到了d维平稳高斯过程非极集的Hausdorff维数的下确界. 相似文献
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具阻尼的非线性波动方程整体吸引子的Hausdorff维数、分形维数估计 总被引:1,自引:0,他引:1
本文得到了一类具有线性阻尼且非线性项满足临界增长条件的非线性波动方程整体吸引子的Hausdorff维数、分形维数估计. 相似文献
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HU Jiaxin 《数学年刊B辑(英文版)》2002,23(4):519-530
The Nagumo equationut ut=△u+bu(u-a)(1-u),t>0 is investigated with initial data and zero Neumann boundary conditions on post-critically finite (p.c.f.) self-similar fractals that have regular harmonic structures and satisfy the separation condition. Such a nonlinear diffusion equation has no travelling wave solutions because of the“pathological” property of the fractal. However, it is shown that a global Hoelder continuous solution in spatial variables exists on the fractal considered. The Sobolev-type inequality plays a crucial role, which holds on such a class of p.c.f self-similar fractals. The heat kernel has an eigenfunction expansion and is well-defined due to a Weyl‘s formula. The large time asymptotic behavior of the solution is discussed, and the solution tends exponentially to the equilibrium state of the Nagumo equation as time tends to infinity if b is small. 相似文献
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陈振龙 《数学物理学报(B辑英文版)》2011,31(3):969-992
This paper studies fractal properties of polar sets for random string processes. We give upper and lower bounds of the hitting probabilities on compact sets and prove some sufficient conditions and necessary conditions for compact sets to be polar for the random string process. Moreover, we also determine the smallest Hausdorff dimensions of non-polar sets by constructing a Cantor-type set to connect its Hausdorff dimension and capacity. 相似文献
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GEOMETRY AND DIMENSION OF SELF—SIMILAR SET 总被引:1,自引:0,他引:1
The authors show that the self-similar set for a finite family of contractive similitudes (similarities, i.e., |fi(x) - fi(y)| = αi|x - y|, x,y ∈ RN, where 0 < αi < 1) is uniformly perfect except the case that it is a singleton. As a corollary, it is proved that this self-similar set has positive Hausdorff dimension provided that it is not a singleton. And a lower bound of the upper box dimension of the uniformly perfect sets is given. Meanwhile the uniformly perfect set with Hausdorff measure zero in its Hausdorff dimension is given. 相似文献
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In this paper, a new iterated function system consisting of non-linear affinemaps is constructed. We investigate the fractal interpolation functions generated bysuch a system and get its differentiability, its box dimension, its packing dimension,and a lower bound of its Hansdorff dimension. 相似文献
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设E是Hausdorff测度正有限的广义齐次自相似集,本文证明了s维Hausdorff测度是E上唯一的非扩张概率测度. 相似文献