Results 1 to 10 of about 10,997 (132)
An integral inequality with the best constant factor and composite kernel(一个具最佳常数的复合核积分不等式)
Zhejiang Daxue xuebao. Lixue ban, 2013 引入Γ-函数等特殊函数，利用权函数方法和实分析技巧，建立一个具最佳常数的复合核积分不等式.考虑了它的等价式，证明了它们的常数因子是最佳的，并通过取特殊的参数值，得到一些有意义的结果.
LIUQiong(刘琼) +1 more
doaj +2 more sources
商业创新期刊, 2021 价值链及其解构是实践中，生产者服务业得以发展并不断超越的微观机制。价值链、价值网络、广义的价值生态系统不断的演化中，生产者服务业和制造业的融合模式，发生着从外包到嵌入乃至全方位融合的改变。不同的融合模式下生产者服务业的功能和结构也在不断转变：从作为价值链的供应商之一、到价值链的互补供应商以及制造业产品的竞争力和盈利来源，反映了生产者服务业从附属、平等到制造业引领的战略性转变。
莉莉 刘
semanticscholar +1 more source
DEA数据标准化方法及其在方向距离函数模型中的应用 [PDF]
, 2011 Directional distance function is the generalization of radial model in data envelopment analysis. It has the capacity of dealing with undesirable outputs, but the problem is that it has no unit-invariant measurement of efficiency, which hampers its ...
Cheng, Gang, Qian, Zhenhua
core +5 more sources
Classifying knots by 5-equivalence(纽结的5-等价分类)
Zhejiang Daxue xuebao. Lixue ban, 2007 研究了Jones多项式和Dubrovnik多项式在5-等价时的变化，找到了5-等价下的不变量，给出了几乎所有交叉数不超过9的纽结的5-等价分类.
TAOZhi-Xiong(陶志雄)
doaj +1 more source
Downlink outage probability analysis of distributed MIMO systems over a composite fading channel [PDF]
, 2014 The downlink outage probability of the distributed MIMO systems over a composite channel was discussed. Firstly, a composite fading channel was established by integrating Nakagami-m fading, path loss, and lognormal shad-owing.
Guo-ping TAN +4 more
core +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2009 通过估算权系数,建立一个核含2-参数且-2齐次的Hilbert型不等式及其等价式,并考虑了逆向不等式的情形.
YANGBi-cheng(杨必成)
doaj +1 more source
A Hilbert-type integral inequality(一个Hilbert型积分不等式)
Zhejiang Daxue xuebao. Lixue ban, 2007 通过估算权函数，建立一个含参数的具有最佳常数因子的Hilbert型积分不等式.同时建立它的两种最佳推广式及相应的等价形式.
YANGBi-cheng(杨必成)
doaj +1 more source
A strengthened version of a Hardy-Hilbert-type inequality(一个加强的Hardy-Hilbert型不等式)
Zhejiang Daxue xuebao. Lixue ban, 2016 引入独立参数，应用权系数的方法及Hadamard不等式，建立了一个加强的具有最佳常数因子的Hardy-Hilbert型不等式及其等价形式.
GUZhaohui(顾朝晖) +1 more
doaj +1 more source
A half-discrete Hilbert-type inequality with multi-parameters(一个半离散含多参数的Hilbert型不等式)
Zhejiang Daxue xuebao. Lixue ban, 2012 应用权系数的方法及Hadamard不等式，建立了一个具有最佳常数因子的半离散含多参数的Hilbert型不等式，并考虑了它的等价式.
YANGBi-cheng(杨必成) +1 more
doaj +1 more source
On a Hilbert-type integral inequality with the homogeneous kernel of 0-degree(一个含零齐次核的Hilbert型积分不等式)
Zhejiang Daxue xuebao. Lixue ban, 2011 引进一个零齐次混合核，利用分析的方法和不等式理论，建立了 一个含参量且具有最佳常数因子的Hilbert型积分不等式及其等价形式.
HEBing(和炳)
doaj +1 more source