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991.
MINIMUMPERIODCONTROLPROBLEMFORINFINITEDIMENSIONALSYSTEMPAHLIPINGLIXUNJINGManuscriptreceivedDecember12,1994.RevisedApril16... 相似文献
992.
For weighted sums Σj = 1najVj of independent random elements {Vn, n ≥ 1} in real separable, Rademacher type p (1 ≤ p ≤ 2) Banach spaces, a general weak law of large numbers of the form (Σj = 1najVj − vn)/bn →p 0 is established, where {vn, n ≥ 1} and bn → ∞ are suitable sequences. It is assumed that {Vn, n ≥ 1} is stochastically dominated by a random element V, and the hypotheses involve both the behavior of the tail of the distribution of |V| and the growth behaviors of the constants {an, n ≥ 1} and {bn, n ≥ 1}. No assumption is made concerning the existence of expected values or absolute moments of the {Vn, n >- 1}. 相似文献
993.
A. Di Nola
W. Pedrycz
S. Sessa
E. Sanchez
《Fuzzy Sets and Systems》1991,40(3):415-429We give a wide overview on the applications of fuzzy relation equations theory to decision-making processes, to the construction of preference relations and to Knowledge Engineering, mainly fuzzy control and fuzzy pattern recognition. General theoretical results and methodological aspects are pointed out. 相似文献
994.
应用计算机模式识别技术研究微量元素与健康的关系 总被引:2,自引:2,他引:0
介绍了微量元素检测数据的一般统计方法,着重推荐应用计算机模式识别技术统计数据.文中介绍计算机模式识别技术的原理和作者应用该技术在微量元素科学的研究中取得的部分成果. 相似文献
995.
一类线性非自伴算子的谱 总被引:8,自引:1,他引:7
近年来国际上出现了一类以迁移理论为背景的所谓"u-标算子(u-scalaroperator)".本文研究u-标算子与经典的标型谱算子(spectraloperatorofscalartype)的内在联系,给出了此类算子的谱与其无界投影族之间的关系,证明了该类算子的剩余谱是空集. 相似文献
996.
本文得到Ω满足Dini型条件时,Marcinkiewicz积分交换子μΩ,b(f)的端点估计:|{x∈R~n:μΩ,b(f)(x)>λ}|≤c‖b‖BMO∫_(R~n)(|f(x)|)/λ(1+log+(|f(x)|)/λ)dx. 相似文献
997.
We present an OR-based approach to support a milk collection problem in a special branch of dairy industry. The annual growth of the sector and the continuous imbalance between milk supply and demand, has urged the sector to look for a different approach to their daily milk collection problem. Specific details of the problem environment (i.e., the continuous production on supply level and the delivery conditions on demand level) gave rise to choose for a short- to medium-term planning approach. The proposed decision support system has to be considered as an efficient tool for generating stable milk collection plans which in turn also serves as an effective starting point for the vehicle routing problem. From a computational point of view it turned out that the application of Special Ordered Sets type 1 (SOS1) was very useful. Although it appears from literature that the computational advantage of SOS1 is restricted to supplementary model conditions, this study shows that these conditions are not necessarily needed. 相似文献
998.
Xie Ping Ding 《Journal of Global Optimization》2007,38(3):367-385
This paper is a continuum of the preceding paper of author. By applying a coincidence theorem in noncompact FC-space without
any convexity structure due to author, a new KKM type theorem is first proved under noncompact setting of FC-spaces. The equivalent
relation between the coincidence theorem and the KKM type theorem is also established. As applications of the KKM type theorem,
we establish some new existence theorems of solutions for three classes of generalized vector equilibrium problems under noncompact
setting of FC-spaces. These theorems improve and generalize many known results in literature. 相似文献
999.
讨论具有无穷时滞中立型泛函微分方程$ \frac{\rm d}{{\rm d}t}\left(x(t)-\int_{-\infty}^{0}g(s,x(t+s)){\rm d}s\right) =A(t,x(t))x(t)+f(t,x_t)$的周期解问题,利用重合度理论中的延拓定理得到了周期解的存在性和唯一性条件;特别地,当$g(s,x)\equiv 0, A(t,x)=A(t)$时, 给出了存在唯一稳定周期解的条件. 相似文献
1000.
Finite Difference Method for Reaction-Diffusion Equation with Nonlocal Boundary Conditions 总被引:2,自引:0,他引:2
Jianming Liu 《高等学校计算数学学报(英文版)》2007,16(2):97-111
In this paper, we present a numerical approach to a class of nonlinear reaction-diffusion equations with nonlocal Robin type boundary conditions by finite difference methods. A second-order accurate difference scheme is derived by the method of reduction of order. Moreover, we prove that the scheme is uniquely solvable and convergent with the convergence rate of order two in a discrete L2-norm. A simple numerical example is given to illustrate the efficiency of the proposed method. 相似文献