共查询到20条相似文献,搜索用时 15 毫秒
1.
本文研究了环Fpm+uFpm+u2Fpm上长度为ps的循环码分类.通过建立环Fpm+uFpm+u2Fpm到环Fpm+uFpm的同态,给出了环Fpm+uFpm+u2Fpm上长度为ps的循环码的新分类方法.应用这种方法,得到了环Fpm+uFpm+u2Fpm长度为ps的循环码的码词数. 相似文献
2.
V. A. Andrienko 《Russian Mathematics (Iz VUZ)》2010,54(3):1-6
We obtain the necessary conditions for the embedding H
p
ω
⊂ e
L
(1≤p∞) with convex modulus of continuity ω in terms of this modulus. In the case p=1 these conditions are also sufficient. 相似文献
3.
Nguyen Thanh Long 《Journal of Mathematical Analysis and Applications》2002,274(1):102-123
In this paper we consider the following nonlinear wave equation
(1) 相似文献
4.
本文研究有限链环上一类λ-常循环码.利用x~n-1在R_a[x]上可唯一分解为两两互素的首一基本不可约多项式乘积,刻画了R_a中长为p~sn的所有λ-常循环码,推广了开晓山等人在文献[4]中的结果. 相似文献
5.
6.
V. A. Belonogov 《Proceedings of the Steklov Institute of Mathematics》2009,264(Z1):60-71
In the author’s previous paper, the hypothesis that the alternating groups A
n
have no pairs of semiproportional irreducible characters is reduced to a hypothesis concerning the problem of describing
the pairs of irreducible characters of the symmetric group S
n
that are semiproportional on one of the sets A
n
or S
n
∖A
n
. In this hypothesis, properties of such a pair of characters are expressed in terms of Young’s diagrams corresponding to
these characters. The theorem proved in this paper allows one to exclude from consideration some stages of the verification
of this hypothesis. 相似文献
7.
8.
For any integersa
1,a
2,a
3,a
4 andc witha
1
a
2
a
3
a
4≢0(modp), this paper shows that there exists a solutionX=(x
1,x
2,x
3,x
4) ∈Z
4 of the congruencea
1
x
1
2
+a
2
x
2
2
+a
3
x
3
2
+a
4
x
4
2
≡c(modp) such that
Research of Zheng Zhiyong is supported by NNSF Grant of China. He would also like to thank the first author and the Mathematics
Department of Kansas, State University for their hospitality and support. 相似文献
9.
Samuel A. Ilori 《K-Theory》1989,2(5):623-624
We use the work of Karoubi and Mudrinski on the real Grothendieck's groups of certain complex projective bundles to show that the torsion of the KO
–i
groups of G
3(
n
), n odd, are related to the known torsion of the KO
–i
groups of G2(
n
). 相似文献
10.
本文主要研究了顾客一般独立批到达、指数批服务、缓冲器容量有限的单个服务器的排队系统,本文首先使用补充变量和嵌入马氏链的方法,在部分拒绝和全部拒绝情形下,得到系统排队队长的稳态分布,进而得到相应的性能指标,如系统的平均排队长、平均等待时间、损失概率等.其次对等待时间进行了分析. 相似文献
11.
12.
��ǿռ��������ȨM/M/n/m�Ŷ�ϵͳ 总被引:1,自引:0,他引:1
Concerning the problem that network congestion risk of computer network service system for some data frames having a full priority of transmission, a method about nonpreemptive limited-priority M/M/n/m queuing system model was proposed. Firstly, as the parameter r of limited-priority was introduced into the model, the data frame with full priority was converted to the one with limited priority. Secondly, in order to lower the risk of computer network service system and stabilize the network system further, the fairness among different priorities was studied in the model. Moreover, by making use of Total Probability Theorem, three results of the models, the average waiting time, the average dwelling time and the average queue length were obtained. 相似文献
13.
14.
B. P. Damyanov 《Czechoslovak Mathematical Journal》2005,55(1):189-201
Results on singular products of the distributions x
±
-p
and x
-p
for natural p are derived, when the products are balanced so that their sum exists in the distribution space. These results follow the pattern of a known distributional product published by Jan Mikusiski in 1966. The results are obtained in the Colombeau algebra of generalized functions, which is the most relevant algebraic construction for tackling nonlinear problems of Schwartz distributions. 相似文献
15.
本文研究了环Fp+vFp上互补对偶(1-2v)-常循环码.利用环Fp+vFp上(1-2v)-常循环码的分解式C=vC1-v ⊕(1-v)Cv,得到了环Fp+vFp上互补对偶(1-2v)-常循环码的生成多项式.然后借助从Fp+vFp到Fp2的Gray映射,证明了环Fp+vFp上互补对偶(1-2v)-常循环码的Gray像是Fp的互补对偶循环码. 相似文献
16.
In this paper the invariance criterion is applied for the nonlinear equation
where g(u) is a smooth function on u. Some particular set of Lie generators are given. In the case of inviscid Burger’s equation [1]
the Lie projectable symmetry algebra is determined, and the inviscid Burger’s equation will be connected to some order differential
equations. The obtained differential equations are solved and some exact solutions of (2) are found.
E.H. El Kinani, Junior Associate at The Abdus Salam ICTP, Trieste, Italy. 相似文献
(0.1) |
(0.2) |
17.
18.
在前人已有研究Ek/M/n的基础上,将系统的容量改为有限,即E_k/M/n/N,并应用概率论和随机过程的基本理论知识,对排队模型进行修正研究,试图探讨诸多排队模型指标的计算,并研究其在城市汽车加油站中车辆交通运行的实践应用,尝试在城市加油站规划布局、规模优化及服务运作上有一定的应用性. 相似文献
19.
20.
Song Li 《中国科学A辑(英文版)》2003,46(3):364-375
The purpose of this paper is to investigate the refinement equations of the form
where the vector of functions ϕ=(ϕ
1..., ϕ
r
)
T
is in (L
p
(ℝ
s
))
r
, 1⩽p⩽∞, a(α), α∈ℤ
s
is a finitely supported sequence of r × r matrices called the refinement mask, and M is an s × s integer matrix such that lim→∞ M-n = 0. In order to solve the refinement equation mentioned above, we start with a vector of compactly supported functions φ
0∈(L
p
(ℝ
s
))
r
and use the iteration schemes f
n
:=Q
a
n
φ
0, n=1,2,..., where Q
n
is the linear operator defined on (L
p
(ℝ
s
))
r
given by
This iteration scheme is called a subdivision scheme or cascade algorithm. In this paper, we characterize the Lp-convergence of subdivision schemes in terms of the p-norm joint spectral radius of a finite collection of some linear operators
determined by the sequence a and the set B restricted to a certain invariant subspace, where the set B is a complete set of representatives of the distinct cosets of the quotient group ℤs/Mℤs containing 0. 相似文献