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41.
基于经典命题逻辑的真度理论,讨论了经典命题逻辑系统当中公式集的约简问题。提出了真度约简及α-真度约简的概念,为公式集的约简提供了一种可行的操作方法。 相似文献
42.
43.
A. V. Arhangel'skii J. Calbrix 《Proceedings of the American Mathematical Society》1999,127(8):2497-2504
This work is devoted to the relationship between topological properties of a space and those of (= the space of continuous real-valued functions on , with the topology of pointwise convergence). The emphasis is on -compactness of and on location of in . In particular, -compact cosmic spaces are characterized in this way.
44.
最佳跳频序列族的设计与分析 总被引:2,自引:0,他引:2
本文提出了基于p元广义GMW序列和p元Kasami序列构造跳频序列族的方法,证明了基于广义GMW序列所构造的跳频序列族具有最佳Hamming相关特性,而基于Kasami序列所构造的跳频序列族不具有最佳Hamming相关特性。 相似文献
45.
Bent函数的一般构造法 总被引:7,自引:0,他引:7
本文用概率方法给出小项表示的布尔函数谱的性质,据此得到了Bent函数的特征矩阵的等价刻画,原则上给出了Bent函数的一般构造法,并为Bent函数的计数问题提供了一个模型。文中还提出了Bent矩阵的概念,考察了Bent矩阵的性质,并借助Bent矩阵得到由已知Bent函数构造新的Bent函数构造新的Bent函数的方法。 相似文献
46.
47.
Rate of Convergence for the Empirical Distribution Function and the Empirical Characteristic Function of Mixing ProcessesHuSh... 相似文献
48.
Summary The aim of this paper is to analyze the asymptotic behavior of the value functions of a continuous stochastic game as the
number of stages grows to infinity or the discount factor approaches 1.
After the setup of the problem we prove that, in both cases, the extrema of the value functions converge to the same limits.
The convergence of the value functions is then obtained from the unicity of the solution of a functional problem and it is
thus possible to design hypotheses that assure the convergence to a constant. This allows to assign a value to an undiscounted
infinite-stage stochastic game in several senses and to show that optimal strategies are available for both players.
Furthermore the boundedness of the remainders of the value function after removing the principal terms is analyzed, with appropriate
hypotheses, and related to the existence of solutions of a Howard's type functional equation. This allows to show that for
an infinite-stage undiscounted stochastic game optimal stationary strategies exist at least if this functional equation has
some solution. 相似文献
49.
The problem of establishing appropriate conditions for the vorticity transport equation is considered. It is shown that, in viscous incompressible flows, the boundary conditions on the velocity imply conditions of an integral type on the vorticity. These conditions determine a projection of the vorticity field on the linear manifold of the harmonic vector fields. Some computational consequences of the above result in two-dimensional calculations by means of the nonprimitive variables, stream function and vorticity, are examined. As an example of the application of the discrete analogue of the projection conditions, numerical solutions of the driven cavity problem are reported. 相似文献
50.
Alf Jonsson 《Journal of Mathematical Analysis and Applications》2004,290(1):86-104
Wavelets of Haar type of higher order m on self-similar fractals were introduced by the author in J. Fourier Anal. Appl. 4 (1998) 329-340. These are piecewise polynomials of degree m instead of piecewise constants. It was shown that for certain totally disconnected fractals, spaces of functions defined on the fractal may be characterized by means of the magnitude of the wavelet coefficients of the functions. In this paper, the study of these wavelets is continued. It is shown that also in the case when the fractals are not totally disconnected, the wavelets can be used to study regularity properties of functions. In particular, the self-similar sets considered can be, e.g., an interval in or a cube in . It turns out that it is natural to use Haar wavelets of higher order also in these classical cases, and many of the results in the paper are new also for these sets. 相似文献