sufficient and necessary condition
充要条件;[数] 充分必要条件
2026-03-22 12:28 浏览次数 15
充要条件;[数] 充分必要条件
this paper present a sufficient and necessary condition of constructing quintic ph curves and analyze the geometric meaning of the control polygon.
本文给出了构成五次ph曲线的充要条件,分析了其控制多边形的几何意义。
finally, a sufficient and necessary condition of the diagonalizable block compound matrices is proved.
最后让明了块复合矩阵可对角化的一个充要条件。
a sufficient and necessary condition is given that the algebraic immunity of a boolean function is not more than a fixed value.
借助覆盖向量刻画了代数免疫布尔函数的特征,给出布尔函数代数免疫不大于某确定值的充要条件。
moreover, a judgement condition for live and bound wac net system is given, and the sufficient and necessary condition for wac net liveness monotonicity is shown.
同时,提出了活的有界的wac网系统的判定条件,进而给出了wac网活性满足单调性的充分必要条件。
meanwhile, the sufficient and necessary condition for the orientation of an arbitrary simple polygon is given.
同时,给出了任意简单多边形走向的充要条件。
a sufficient and necessary condition is drawn so as to distinguish the special similarity from the generalized similarity. in addition, some qualities of the generalized similarity are discussed.
导出了从广义相似中区分出狭义相似的充要条件,讨论了广义相似的几个基本性质,指出了广义相似与狭义相似在性质上的诸多相似之处。
in this paper, the sufficient and necessary condition to the existence of solution in smooth spline filter(ssf) problem is studied.
研究了光顺样条滤波问题解存在的充要条件,并将光顺样条滤波方法应用于非线性系统参数的估计问题。
in this paper, the proposition that an unbiased estimate is a sufficient and necessary condition for making an efficient estimate is given and proved.
本文给出并证明了有关一个无偏估计是有效估计的一个充分必要条件。
the sufficient and necessary condition of controllability and reachability of a class of linear switching systems which has the same systematic matrix and different input matrixes is given.
给出一类线性切换系统能控性、能达性的充分必要条件,此类系统的特征是具有相同的系统矩阵和不同的输入矩阵。
this paper gives sufficient and necessary condition of the decision method which can be applied to the design of system with outputs directly involving inputs.
本文给出了在系统输出直接含有系统输入时应用判定法的充要条件。
after a sufficient and necessary condition of phase interferometer unambiguous direction finding is proved, two methods of ambiguity resolution by combination of long baselines are presented.
在证明了多基线的相位干涉仪不产生测向模糊的充要条件后,讨论了两种用长基线组合解测向模糊的算法。
in this short note, a sufficient and necessary condition for a radical class a with cardinality of a(a) a given cardinal is proved.
给出了格序群极根类上恰有某给定基数个原子的一个充分必要条件。
in the paper, we prove a graph which satisfies the fan's condition is upper embeddable by a sufficient and necessary condition on non-upper embeddable graphs.
文章利用关于不是上可嵌入图的充要条件,证明了范条件图是上可嵌入的。
in this paper , we first discuss when owa bag mappings have a fixed identity , give the sufficient and necessary condition for owa bag mappings having fixed-identity.
本文首先讨论了owa袋映射何时带有固定单位,给出了owa袋映射带有固定单位的充要条件。
the paper proposed a sufficient and necessary condition for the problem to admit an exact penalty function approach.
给出了这类双层规划具有恰当罚函数的充要条件,以及这类问题的解的一些性质。
we use the global bifurcation result of compact operators to get a sufficient and necessary condition for the existence of positive periodic solutions.
利用紧算子的全局分歧结果给出了这个方程正周期解存在的充分必要条件。
the present paper deals with the sufficient and necessary condition of the final positive solutions of non-linear partial-difference equations and first presents the comparison theorem.
建立关于具有连续变量非线性偏差分方程存在最终正解的充要条件。
based on this, the sufficient and necessary condition under which a set of gd-constrai nts is a minimal cover is given.
在此基础上,给出了一个gd-约束集成为最小覆盖的充要条件。
the sufficient and necessary condition for complete inertial force balancing of open-chain spatial linkages is derived and the concept of relative balancing is presented in this paper.
本文导出空间开链型机构惯性力完全平衡的充分必要条件,提出相对平衡的概念。
this paper gives the concept and some properties of partition symmetric anti-circulate matrix, and the sufficient and necessary condition is discussed.
给出了分块对称反循环矩阵的概念,讨论了分块对称反循环矩阵的性质,给出了分块对称反循环矩阵的若干充分必要条件。
this paper deals with the system of linear equations with matrix variables and gives the sufficient and necessary condition of consistency.
本文讨论以矩阵为变量的线性方程组,给出相容性的充要条件。
in this paper, we obtain the sufficient and necessary condition for the stability by two-dimensional random walk approach.
本文用二维随机游动方法得到了其稳定性的充分必要条件。
besides, this paper gives a sufficient and necessary condition of the existence of normal process under the strictly nonnegative definiteness condition.
此外本文还给出了严格非负定条件下实正态过程存在的一个充要条件。
a sufficient and necessary condition of controllability for symmetric systems is al…
对于对称系统,给出了可控性的充要条件。
in this paper, we introduce the concept of the weak efficiency. some of its properties are discussed and a sufficient and necessary condition of the weak efficiency is obtained.
本文引入生产技术的弱有效性概念,讨论了它的若干性质,得出一个弱有效性的充要条件。
in this paper, we give sufficient and necessary condition and some sufficient conditions of oscillate for neutral differential equations with piecewise constant argument.
研究了一类具有分段常数变元的中立型微分方程组的振动性,并给出了所有解振动的充分必要条件和若干充分条件。
at the same time, a new proof is given for the sufficient and necessary condition of the sor method applied to symmetric and positive definite system.
进一步丰富了sor理论,同时给出了sor方法在对称正定条件下收敛的充要条件的又一新证明。
a sufficient and necessary condition in terms of the compactness of super-distance space is given based on the property of super-distance space and the related theory of compactness.
利用超距空间的基本性质及拓扑空间紧致性的相关理论,给出超距空间为紧致空间的充分且必要条件,并讨论了一些相关性质。