共查询到20条相似文献,搜索用时 218 毫秒
1.
本文给出了当V0 ≥ 0时 ,c′σ2 在混合模型M =( y ,Xβ ,Uξ,σ20 V0 )下的最小范数二次无偏估计的表达式及其证明 ;得到了当 y服从正态分布时 ,c′σ2 的最小范数二次无偏估计与其最小方差二次无偏估计之间的关系。 相似文献
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对于平衡线性混合模型,本文提出了一组易验证的条件,在此条件下,方差分量的谱分解估计、方差分析估计和最小范数二次无偏估计都相等且为一致最小方差无偏估计.同时证明了在此条件下,似然方程和限制似然方程都有显式解,还给出了许多满足这组条件的平衡线性混合模型的例子. 相似文献
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对于平衡线性混合模型,本文提出了一组易验证的条件,在此条件下,方差分量的谱分解估计、方 差分析估计和最小范数二次无偏估计都相等且为一致最小方差无偏估计.同时证明了在此条件下,似然 方程和限制似然方程都有显式解,还给出了许多满足这组条件的平衡线性混合模型的例子. 相似文献
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本文考虑在扩展的Vasicek模型和分数O-U过程驱动下的二元期权定价问题。运用拟鞅方法,得到了在随机利率情形下,股票价格在分数O-U过程驱动下的二元期权的定价公式。 相似文献
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通过估计d维分数Brown运动在H(o)lder范数下的大偏差概率,得到了分数Brown运动的连续模性质. 相似文献
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本文综述混合效应模型参数估计方面的若干新进展. 平衡混合效应方差分析模型的协方差阵具有一定结构. 对这类模型, 文献[1]提出了参数估计的一种新方法, 称为谱分解法. 新方法的突出特点是, 能同时给出固定效应和方差分量的估计, 前者是线性的, 后者是二次的,且相互独立. 而后, 文献[2--9]证明了谱分解估计的进一步的统计性质, 同时给出了协方差阵对应的估计, 它不仅是正定阵, 而且可获得它的风险函数, 这些文献还研究了谱分解估计与方差分析估计, 极大似然估计, 限制极大似然估计以及最小范数二次无偏估计的关系. 本文综述这一方向的部分研究成果, 并提出一些待进一步研究的问题. 相似文献
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通过估计d维分数Brown运动在Holder范数下的大偏差概率,得到了分数Brown运动的连续模性质. 相似文献
11.
In this paper, the authors give a mixed norm estimate for the multi-parameter fractional integrals on product measurable spaces.
This estimate is applied to obtain the boundedness for the fractional integrals of Nagel-Stein type on product manifolds,
the fractional integral of Folland-Stein type with rough convolution kernels on product homogeneous groups, and the discrete
fractional integrals of Stein-Wainger type.
The research was supported by NSF of China (Grant: 10571015) and SRFDP of China (Grant: 20050027025). 相似文献
12.
In this paper we study mixed norm boundedness for fractional integrals related to Laplace–Beltrami operators on compact Riemannian symmetric spaces of rank one. The key point is the analysis of weighted inequalities for fractional integral operators associated to trigonometric Jacobi polynomials expansions. In particular, we find a novel sharp estimate for the Jacobi fractional integral kernel with explicit dependence on the type parameters. 相似文献
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《高校应用数学学报(英文版)》2021,36(3)
In [3], Chen, Deng, Ding and Fan proved that the fractional power dissipative operator is bounded on Lebesgue spaces L~p(R~n), Hardy spaces H~p(R~n) and general mixed norm spaces, which implies almost everywhere convergence of such operator. In this paper, we study the rate of convergence on fractional power dissipative operator on some sobolev type spaces. 相似文献
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We prove a new sharp Kolmogorov-type inequality that estimates the uniform norm of a mixed derivative of fractional order (in the sense of Marchaud) of a function of several variables via the uniform norm of the function and its norm on Hölder spaces. 相似文献
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K.L Avetisyan 《Journal of Mathematical Analysis and Applications》2004,291(2):727-740
We study anisotropic mixed norm spaces of n-harmonic functions in the unit polydisc of . Bergman type reproducing integral formulas are established by means of fractional derivatives and some continuous inclusions. It gives us a tool to construct corresponding projections and related operators and prove their boundedness on the mixed norm and Besov spaces. 相似文献
16.
Tuoc Phan & Yannick Sire 《分析论及其应用》2020,36(2):111-127
We establish local and global well-posedness of the 2D dissipative quasi-geostrophic equation in critical mixed norm Lebesgue spaces. The result demonstrates
the persistence of the anisotropic behavior of the initial data under the evolution of
the 2D dissipative quasi-geostrophic equation. The phenomenon is a priori nontrivial
due to the nonlocal structure of the equation. Our approach is based on Kato's method
using Picard's iteration, which can be adapted to the multi-dimensional case and
other nonlinear non-local equations. We develop time decay estimates for solutions of
fractional heat equation in mixed norm Lebesgue spaces that could be useful for other
problems. 相似文献
17.
Weak estimates for commutators of fractional integral operators 总被引:4,自引:0,他引:4
By introducing a kind of maximal operator of the fractional order associated with the mean Luxemburg norm and using the technique
of the sharp function, the weak type LlogL estimates for the commutators of the fractional integral operator and the related
maximal operator are established. 相似文献
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本文建立了p=1时齐型空间上的分数次极大数与分数次积分的强型加权不等式,完善了潘文杰的结果,并将G.V.Welland的结果推广齐型空间. 相似文献
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In this paper, the weak type LlogL estimate for the multilinear fractional commutator is obtained by introducing a new kind of maximal operator of the multilinear fractional order associated with the mean Luxumburg norm and using the technique of sharp function. 相似文献
20.
Wolfgang A. Halang 《Numerical Functional Analysis & Optimization》2013,34(7-8):725-742
The existence of minimum norm properties for even degree polynomial splines, analogous to the. ones known for odd degree splines, is investigated within the framework of the theory of topological spline systems. It is shown that such properties cannot exist for even degree splines interpolating functions halfway between the partition points. For another class of even degree spline functions, however, which hterpolate the local integrals of given functions with respect to the partitions, the seeked minimum norm properties can be proved. This is carried out by first investigating a generalized problem within the theory of spline systems and then deriving corresponding conclusions. As a corollary the existence of spline systems with respect to differential operators of fractional degree is obtained. 相似文献