In this paper, by the properties of inequality constituted by elements in no-negative number matrix, the con-structive proof for the ten famous inequalities was given, in which there are four inequalities to be extended.
进一步探讨了在文献［１］中建立的数阵中的不等式性质在不等式的导出与证明中的应用，通过设计适当的非负数阵，给出了１０个著名经典不等式的构造性证明，其中４个还得到了推广。
A new kind algorithm of Kriging based on the Linear Programming (LP)is proposed to take the constrains of nonnegative weights into consideration,and this new method not only makes the use of LP's properties of easy and fast caculation,but also avoids the heavy caculation and subjective affection that existed in the other methods with nonnegative weights.
基于线性规划方法提出了一种考虑权值非负约束的克立格算法，该算法既利用了线性规划求解简便、快捷的优点，又克服了其它正克立格法计算工作量大以及受主观因素影响的缺点。
The existence and uniqueness of nonnegative solution for a class of age-structured SEIR epidemic model;
年龄结构的SEIR流行病模型非负解的存在唯一性
By using pure analysis method,are proved the monotone stability,existence and uniqeness of a dynamic state nonnegative solution of a repairable syatem with some singleness components.
用纯分析的方法给出了一类单部件可修系统动态非负解的存在唯一性和单调稳定性证明。
This paper deals with the existence of nonnegative solutions to boundary value problems 1p(t)(p(t)y′(t))′+a(t)f(t,y(t))=0, lim t→0+ p(t)y′(t)=0=y(1) where p∈C 1 (0,1) with p>0 on (0,1),f≥0,f(t,y) is nonincreasing with respect to t for each fixed y and nondecreasing with respect to y for each fixed t, and a∈C(0,1) may change sign.
利用Schauder不动点定理和上下解方法 ,对边值问题 1p(t) (p(t) y′(t) ) +a(t) f(t,y(t) ) =0 ,limt→ 0 +p(t) y′(t) =0 =y(1)讨论非负解的存在性 。
Combinatorial structures on nonnegative matrix with zero trace;
迹为零非负矩阵的组合结构
Estimation of new bounds on the spectral radius of nonnegative matrix;
非负矩阵谱半径的一个新界值估计
The installation of "new bound" for spectral radius of nonnegative matrixs;
非负矩阵谱半径的“新界”设置