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半群理论 [bàn qún lǐ lùn]
[数] semigroup theory
- 本文用压缩半群理论讨论了二阶线性发展方程组的初值问题；
The initial problem for second order linear evolution equation systems is discussed by using the contraction semigroup theory. - 为了解决偏微分方程初值问题和一些实际问题，上世纪中叶数学家提出了算子半群理论。
In order to treat initial value problems for partial differential equations and some practical applications, mathematicians created operator semigroup theory in middle period of the last century. - 通过半群理论、非负矩阵性质和不等式技巧，得到估计这类方程平衡态渐近稳定域的方法。
Some conditions are obtained by using the semigroup theory, the properties of nonnegative matrices and the techniques of inequalities to determine the asymptotically stable region of the equilibrium.
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