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491.
This paper is based on the M. Sc. thesis written by the third author under the supervision of the first two authors. It was submitted to the University of Baghdad in January 1987. 相似文献
492.
Audrey Terras 《Journal of multivariate analysis》1984,15(2):261-276
This is an expository paper. The derivation of the ordinary central limit theorem using the Fourier transform on the real line is reviewed. Harmonic analysis on the Poincaré-Lobatchevsky upper half plane H is sketched. The Fourier inversion formula on H reduces to that for the classical integral transform of F. G. Mehler (1881, Math. Ann.18, 161–194) and V. A. Fock (1943, Compt. Rend. Acad. Sci. URSS Dokl N. S.39, 253–256), for example. This result is then used to solve the heat equation on H, producing a non-Euclidean analogue of the density function for the Gaussian or normal distribution on H. The non-Euclidean central limit theorem for rotation invariant distributions on H with an application to the statistics of long transmission lines is also discussed. 相似文献
493.
Let u be the Newtonian potential of a real analytic distribution in an open set Ω. In this paper we assume u is analytically
continuable from the complement of Ω into some neighborhood of a point x0 ∈ ∂Ω, and we study conditions under which the analytic continuation implies that ∂Ω is a real analytic hypersurface in some
neighborhood of x0. 相似文献
494.
We consider a population model where individuals behave independently from each other and whose genealogy is described by a chronological tree called splitting tree. The individuals have i.i.d. (non-exponential) lifetime durations and give birth at constant rate to clonal or mutant children in an infinitely many alleles model with neutral mutations. 相似文献
495.
Achim Blumensath 《Mathematical Logic Quarterly》2011,57(4):409-431
We study tree‐like decompositions of models of a theory and a related complexity measure called partition width. We prove a dichotomy concerning partition width and definable pairing functions: either the partition width of models is bounded, or the theory admits definable pairing functions. Our proof rests on structure results concerning indiscernible sequences and finitely satisfiable types for theories without definable pairing functions. © 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim 相似文献
496.
Bin Jia 《Discrete Mathematics》2011,(22):2623
Let Σ be a finite X-symmetric graph of valency , and s≥1 an integer. In this article we give a sufficient and necessary condition for the existence of a class of finite imprimitive (X,s)-arc-transitive graphs which have a quotient isomorphic to Σ and are not multicovers of that quotient, together with a combinatorial method, called the double-star graph construction, for constructing such graphs. Moreover, for any X-symmetric graph Γ admitting a nontrivial X-invariant partition B such that Γ is not a multicover of ΓB, we show that there exists a sequence of -invariant partitions B=B0,B1,…,Bm of V(Γ), where m≥1 is an integer, such that Bi is a proper refinement of Bi−1, ΓBi is not a multicover of ΓBi−1 and ΓBi can be reconstructed from ΓBi−1 by the double-star graph construction, for i=1,2,…,m, and that either Γ≅ΓBm or Γ is a multicover of ΓBm. 相似文献
497.
498.
M. Kbiri Alaoui A. Souissi 《Nonlinear Analysis: Theory, Methods & Applications》2011,74(17):5863-5875
The paper deals with the existence of solutions of some unilateral problems in the framework of Orlicz spaces. 相似文献
499.
We prove the Paley–Wiener theorem for the Helgason Fourier transform of smooth compactly supported biradial functions on a Damek–Ricci space S=NA. 相似文献
500.