理学 >>> 数学 >>> 数理逻辑与数学基础 数论 代数学 代数几何学 几何学 拓扑学 数学分析 非标准分析 函数论 常微分方程 偏微分方程 动力系统 积分方程 泛函分析 计算数学 概率论 数理统计学 应用统计数学 运筹学 组合数学 离散数学 模糊数学 应用数学 数学其他学科
搜索结果: 1-12 共查到数学 Non-existence相关记录12条 . 查询时间(0.084 秒)
We consider Fisher-KPP-type reaction-diffusion equations with spatially inhomogeneous reaction rates. We show that a sufficiently strong localized inhomogeneity may prevent existence of transition-fro...
We prove several existence and non existence results of solitary waves for a class of nonlinear pseudo-relativistic Hartree equations with general nonlinearities. We use variational methods and some n...
Abstract: We prove the non-existence of elliptic curves having good reduction everywhere over some real quadratic fields.
A set of k mutually unbiased bases (MUB) in CN is a set of orthonormal bases whose basis vectors obey the following relations.
It has been proved that there are no real hypersurfaces satisfying RA =0 in non-flat complex space forms. In this paper we prove that the same is true in the case of CR submanifolds of maximal CR dime...
In this paper the conditions, under which non-topological solitons are absent in Yang-Mills theory coupled to a non-linear scalar field in Minkowski space, are obtained. It is also shown that non-topo...
This paper presents the non-existence of (8,4)-2 burst error correcting perfect code over GF(2). An (n,k) linear code is said to be perfect if for some positive integer b, it corrects all b and fewer ...
This paper presents the non-existence of certain blockwise burst error correcting (1,2)-Optimal linear codes over GF(q) (q is a prime) where the code length n is divided into two sub-blocks of lengths...
We consider Fisher-KPP-type reaction-diffusion equations with spatially inhomogeneous re- action rates. We show that a sufficiently strong localized inhomogeneity may prevent existence of transition-...
We present a family of Eulerian posets which does not have any R-labeling. The result uses a structure theorem for R-labelings of the butterfly poset.
In this paper, lightlike hypersurfaces of indefinite Kenmotsu space form are studied. Some characterizations of non-existence of lightlike hypersurfaces of indefinite Kenmotsu space form are given.
It is shown that a Korovkin-type theorem does not hold in the weighted space of Lp-locally integrable functions on the whole real axis.

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...