uniqueness theorem

In this paper a nonautonomous food chain system with ⅱ type functional response and graze is considered. The existence, uniqueness and global asymptotic stability of a positive periodic solution for the system are proved by the comparison theorem, fixed point theorem and V-function method.

讨论有放养的第类功能性反应的捕食链非自治系统，应用比较定理和不动点定理及V函数法，在一定条件下证明该系统存在唯一的全局渐近稳定的正周期解。

New Statement of Uniqueness Theorem for Time-Varying Electromagnetic Field

时变电磁场唯一性定理的完整表述

The uniqueness theorem for electrostatics, magnetostatics and time harmonic fields is unified and proved by language of differential geometry.

应用微分几何的外微分分析对静电场、静磁场和时谐电磁场定解问题的唯一性定理进行统一表述和证明。

Theorem 1 ( Uniqueness of Limit ) If the sequence is convergent, then its limit is unique.

定理1 ( 极限的唯一性 ) 如果数列收敛, 那么它的极限唯一.

A new type of interpolation function that is similar to Lagrange function has been established in this paper, with the uniqueness theorem and interpolation cosine theorem given.

本文建立了一种类似拉格朗日插值函数的新型插值函数，并给出了唯一性定理和插值余项定理。