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71.
A.I. Aptekarev V. Kalyagin G. Lpez Lagomasino I.A. Rocha 《Journal of Approximation Theory》2006,139(1-2):346
In this paper we investigate general properties of the coefficients in the recurrence relation satisfied by multiple orthogonal polynomials. The results include as particular cases Angelesco and Nikishin systems. 相似文献
72.
P. C. Joshi 《Annals of the Institute of Statistical Mathematics》1979,31(1):321-324
Summary In a recent paper [2], the author has obtained some recurrence relations between the moments of order statitics from the exponential
and right truncated exponential distributions. In this paper, similar relations are derived for a doubly truncated exponential
distribution. It is shown that one can obtain all the moments by using these recurrence relations. 相似文献
73.
We consider random walks Xn in Z+, obeying a detailed balance condition, with a weak drift towards the origin when Xn↗∞. We reconsider the equivalence in law between a random walk bridge and a 1+1 dimensional Solid-On-Solid bridge with a corresponding Hamiltonian. Phase diagrams are discussed in terms of recurrence versus wetting. A drift of the random walk yields a Solid-On-Solid potential with an attractive well at the origin and a repulsive tail at infinity, showing complete wetting for δ≤1 and critical partial wetting for δ>1. 相似文献
74.
Morris L. Eaton James P. Hobert Galin L. Jones 《Annales de l'Institut Henri Poincaré (B) Probabilités et Statistiques》2007,43(5):633-653
Consider a parametric statistical model, P(dx|θ), and an improper prior distribution, ν(dθ), that together yield a (proper) formal posterior distribution, Q(dθ|x). The prior is called strongly admissible if the generalized Bayes estimator of every bounded function of θ is admissible under squared error loss. Eaton [M.L. Eaton, A statistical diptych: Admissible inferences-recurrence of symmetric Markov chains, Annals of Statistics 20 (1992) 1147–1179] used the Blyth–Stein Lemma to develop a sufficient condition, call it , for strong admissibility of ν. Our main result says that, under mild regularity conditions, if ν satisfies and g(θ) is a bounded, non-negative function, then the perturbed prior distribution g(θ)ν(dθ) also satisfies and is therefore strongly admissible. Our proof has three basic components: (i) Eaton's [M.L. Eaton, A statistical diptych: Admissible inferences-recurrence of symmetric Markov chains, Annals of Statistics 20 (1992) 1147–1179] result that the condition is equivalent to the local recurrence of the Markov chain whose transition function is R(dθ|η)=∫Q(dθ|x)P(dx|η); (ii) a new result for general state space Markov chains giving conditions under which local recurrence is equivalent to recurrence; and (iii) a new generalization of Hobert and Robert's [J.P. Hobert, C.P. Robert, Eaton's Markov chain, its conjugate partner and -admissibility, Annals of Statistics 27 (1999) 361–373] result that says Eaton's Markov chain is recurrent if and only if the chain with transition function is recurrent. One important application of our results involves the construction of strongly admissible prior distributions for estimation problems with restricted parameter spaces. 相似文献
75.
76.
陈刚 《原子与分子物理学报》2003,20(1):89-91
运用升降算子和超维里定理计算出原子模型势中任意算符Af^U2(r)的矩阵元〈n′1l′1|Af^U2(r)|n1l1〉的递推关系. 相似文献
77.
Tapani Matala-aho 《Journal of Approximation Theory》2003,124(2):139-153
Using the Poincaré-Perron theorem on the asymptotics of the solutions of linear recurrences it is proved that for a class of q-continued fractions the value of the continued fraction is given by a quotient of the solution and its q-shifted value of the corresponding q-functional equation. 相似文献
78.
Recurrence spectra of Li atom in strong external fields 总被引:1,自引:1,他引:0
Based upon our previous work [Commun. Theor. Phys.. 40,702 (2003)], we developed the closed orbit theory from two degrees of freedom to three non-separable degrees of freedom and calculated the recurrence spectra of Li Rydberg atom in strong perpendicular electric and magnetic fields. The Fourier transformed spectra of Li atom has allowed direct comparison between the resonance peaks and the scaled action values of closed orbits, whereas the nonhydrogenic resonance can be explained in terms of the new orbits created by the core scattering. The semiclassical result is in good agreement with the quantum one, which suggests that our calculation is correct. 相似文献
79.
80.
Marcel G. de Bruin 《Numerical Algorithms》2007,44(4):367-380
In this paper the classical convergence theorems by Śleszyński-Pringsheim, Worpitzky and Van Vleck for ordinary continued
fractions will be generalized to continued fractions generalizations (along the lines of the Jacobi–Perron algorithm) with
four-term recurrence relations.
相似文献