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91.
在考虑温度对分子间吸引相互作用影响的前提下,对Cp,m-CV,m的值做了理论分析,并与实验值和引力项中没有考虑温度因子时的范德瓦耳斯方程的修正值做了比较. 相似文献
92.
Let Y
i
, 1 ≤ i ≤ n be i.i.d. random variables with the generalized Pareto distribution W
γ,σ
with γ < 0. We define the empirical mean excess process with respect to {Y
i
, 1 ≤ i ≤ n} as in Eq. 2.1 (see below) and investigate its weak convergence. As an application, two new estimators of the negative tail
index γ are constructed based on the linear regression to the empirical mean excess function and their consistency and asymptotic
normality are obtained.
相似文献
93.
The purpose of this paper is to find optimal estimates for the Green function of a half-space of the relativistic
α
-stable process with parameter m on ℝ
d
space. This process has an infinitesimal generator of the form mI–(m
2/α
I–Δ)
α/2, where 0<α<2, m>0, and reduces to the isotropic α-stable process for m=0. Its potential theory for open bounded sets has been well developed throughout the recent years however almost nothing
was known about the behaviour of the process on unbounded sets. The present paper is intended to fill this gap and we provide
two-sided sharp estimates for the Green function for a half-space. As a byproduct we obtain some improvements of the estimates
known for bounded sets. Our approach combines the recent results obtained in Byczkowski et al. (Bessel Potentials, Hitting
Distributions and Green Functions (2006) (preprint). ), where an explicit integral formula for the m-resolvent of a half-space was found, with estimates of the transition densities for the killed process on exiting a half-space.
The main result states that the Green function is comparable with the Green function for the Brownian motion if the points
are away from the boundary of a half-space and their distance is greater than one. On the other hand for the remaining points
the Green function is somehow related the Green function for the isotropic α-stable process. For example, for d≥3, it is comparable with the Green function for the isotropic α-stable process, provided that the points are close enough.
Research supported by KBN Grants. 相似文献
94.
Finite generation of canonical ring by analytic method 总被引:1,自引:0,他引:1
Yum-Tong Siu 《中国科学A辑(英文版)》2008,51(4):481-502
An overview of the analytic proof of the theorem on the finite generation of the canonical ring for the projective algebraic manifold of general type is given. 相似文献
95.
本文证明了在正规locale范畴中,Banaschewski-Mulvey形式的紧正则反射与Johnstone形式的Wallman紧化一致,从而推广了Johnstone在文献[4]中的主要结果. 相似文献
96.
97.
Hirotaka Akiyoshi 《Proceedings of the American Mathematical Society》2001,129(8):2431-2439
Epstein and Penner give a canonical method of decomposing a cusped hyperbolic manifold into ideal polyhedra. The decomposition depends on arbitrarily specified weights for the cusps. From the construction, it is rather obvious that there appear at most a finite number of decompositions if the given weights are slightly changed. However, since the space of weights is not compact, it is not clear whether the total number of such decompositions is finite. In this paper we prove that the number of polyhedral decompositions of a cusped hyperbolic manifold obtained by the Epstein-Penner's method is finite.
98.
We give necessary and sufficient conditions for the (bounded) law of the iterated logarithm for U-statistics in Hilbert spaces. As a tool we also develop moment and tail estimates for canonical Hilbert-space valued U-statistics of arbitrary order, which are of independent interest.
R. Adamczak’s research partially supported by MEiN Grant 2 PO3A 019 30.
R. Latała’s research partially supported by MEiN Grant 1 PO3A 012 29. 相似文献
99.
Milan Demko 《Czechoslovak Mathematical Journal》2008,58(3):637-650
Some results concerning congruence relations on partially ordered quasigroups (especially, Riesz quasigroups) and ideals of
partially ordered loops are presented. These results generalize the assertions which were proved by Fuchs in [5] for partially
ordered groups and Riesz groups. 相似文献
100.
Tail Dependence Comparison of Survival Marshall–Olkin Copulas 总被引:1,自引:0,他引:1
Haijun Li 《Methodology and Computing in Applied Probability》2008,10(1):39-54
The multivariate tail dependence describes the amount of dependence in the upper-orthant tail or lower-orthant tail of a multivariate
distribution and can be used in the study of dependence among extreme values. We derive an explicit expression of tail dependence
of multivariate survival Marshall–Olkin copulas, and obtain a sufficient condition under which tail dependencies of two survival
Marshall–Olkin copulas can be compared. Some examples are also presented to illustrate our results.
相似文献