论文标题
具有相等模型参数的A模型可以导致希尔伯特空间模型
The A-model with mutually equal model parameters can lead to a Hilbert space model
论文作者
论文摘要
众所周知，如果模型参数相互截然不同，则高阶奇异扰动的A模型可以被视为希尔伯特空间模型，如果否则，它一定是pontryagin空间模型。在本说明中，我们证明，如果模型空间中的扩展是通过合适的线性关系来描述的，那么具有相等模型参数的A模型仍可以导致希尔伯特空间模型。
It is known that the A-model for higher order singular perturbations can be considered as a Hilbert space model if the model parameters are mutually distinct, and that it is necessarily a Pontryagin space model if otherwise. In this note we demonstrate that the A-model with mutually equal model parameters can nonetheless lead to a Hilbert space model if the extensions in the model space are instead described by suitable linear relations.
