negative definite meaning in English
负定的
Examples
- Then a is positive semidefinite, negative definite and negative semidefinite .
则A是半正定，负定，半负定的。 - Then a is positive semidefinite , negative definite and negative semidefinite
则a是半正定，负定，半负定的。 - A note on the lower partial ordering and space preordering of hermitian non - negative definite matrices
序和预偏序的一个注记 - In theorem 3 . 3 . 5 , the derivative of lyapunov function along trajectories of system ( 1 ) does n ' t need to be required to be negative definite , which is different from functional differential systems
在定理3 3石中， lyapunov函数沿系统）的解轨线的导数在iezumikhin型条件下不再局限于常负，这一点不同于泛函微分系统 - In this dissertation , we study some stability properties for two impulsive differential systems employing lyapunov ' s second method : one system is impulsive hybrid differential system : the other is differertial system with impulses at variable time : herein these stability results do not require a lyapunov function to have a negative definite first derivative along trajectories of the system , further we may not require its derivative to restrict the function increasing growth ; and we do not give conditions on continuous portion or discrete portion of the systems respective ! } " , hence we can give mixing conditions on them
在这篇硕士学位论文中，我们主要借助lyapunov第二方法的思想，讨论了两类脉冲微分系统：脉冲混合微分系统和具有依赖于状态脉冲的微分系统的稳定性问题。不同于以往的研究，本文所找的lyapunov函数沿系统轨线的一阶导数不再局限于常负或定负，甚至不用其导数来限制其增长速度；不再局限于对离散或连续部分分别设置条件，而是对其离散和连续部分设置混合条件。