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961.
本文通过积分检验, 刻画了不同分布的$\varphi$-混合序列后置和的极限结果,并由此导出了它们的Chover型重对数律,推广和改进了已有的结果. 相似文献
962.
Strong laws of large numbers (SLLN) for weighted averages are proved under various dependence assumptions when the variables are not necessarily independent or identically distributed. The results considerably extend the existing results. Weighted versions of the Marcinkiewicz-Zygmund SLLN are also formulated and proved under a similar set up. It seems that such results are not known even for independent and identically distributed random variables. 相似文献
963.
Conservation laws for nonlinear telegraph equations 总被引:2,自引:0,他引:2
A complete conservation law classification is given for nonlinear telegraph (NLT) systems with respect to multipliers that are functions of independent and dependent variables. It turns out that a very large class of NLT systems admits four nontrivial local conservation laws. The results of this work are summarized in tables which display all multipliers, fluxes and densities for the corresponding conservation laws. A physical example is considered for possible applications. 相似文献
964.
IntroductionIn recent decades much attention has been paid to the study of the long time behaviour ofs。table classes of solutions of partial mfferentlal equatlo。。lug the concrpts of dynamicalsystems 相似文献
965.
Joel Spencer 《Random Structures and Algorithms》1990,1(2):205-214
For each irrational a, 0<a<1, a particular countable graph G is defined which mirrors the asymptotic behavior of the random graph G(n, p) with edge probability p = n?a. 相似文献
966.
基于高阶微商奇异拉氏量系统的相空间生成泛函,导出了定域和非定域变换下的量子正则Noether恒等式;对高阶微商规范不变系统,导出了位形空间中定域和非定域变换下的量子Noether恒等式.指出在某些情形下,由量子Noether恒等式可导致系统的量子守恒律.这种求守恒律的程式与量子Noether(第一)定理不同.用于高阶微商非AbelChern-Simons(CS)理论,求出某些非定域等变换下的量子守恒量. 相似文献
967.
In this paper, we developed a class of the fourth order accurate finite volume Hermite weighted essentially non-oscillatory
(HWENO) schemes based on the work (Computers & Fluids, 34: 642–663 (2005)) by Qiu and Shu, with Total Variation Diminishing
Runge-Kutta time discretization method for the two-dimensional hyperbolic conservation laws. The key idea of HWENO is to evolve
both with the solution and its derivative, which allows for using Hermite interpolation in the reconstruction phase, resulting
in a more compact stencil at the expense of the additional work. The main difference between this work and the formal one
is the procedure to reconstruct the derivative terms. Comparing with the original HWENO schemes of Qiu and Shu, one major
advantage of new HWENO schemes is its robust in computation of problem with strong shocks. Extensive numerical experiments
are performed to illustrate the capability of the method.
Corresponding author This work was partially supported by the National Natural Science Foundation of China (Grant No. 10671097),
the European project ADIGMA on the development of innovative solution algorithms for aerodynamic simulations, Scientific Research
Foundation for the Returned Overseas Chinese Scholars, State Education Ministry and the Natural Science Foundation of Jiangsu
Province (Grant No. BK2006511) 相似文献
968.
969.
E. Trillas M. Mas M. Monserrat J. Torrens 《International Journal of Approximate Reasoning》2008,48(2):583-597
In fuzzy logic, connectives have a meaning that, can frequently be known through the use of these connectives in a given context. This implies that there is not a universal-class for each type of connective, and because of that several continuous t-norms, continuous t-conorms and strong negations, are employed to represent, respectively, the and, the or, and the not. The same happens with the case of the connective If/then for which there is a multiplicity of models called T-conditionals or implications. To reinforce that there is not a universal-class for this connective, four very simple classical laws translated into fuzzy logic are studied. 相似文献
970.
In this paper,we investigate the relaxation phenomenon for quasilinear hyper- bolic conservation laws,and obtain global smooth solutions and the life span of classical solutions to its Canchy problem.These results shows that the relaxation admits the effects of dissipation. 相似文献