证明了任何一个内算子值函数都具有正合的无限时间可控和正合的可观测的适定的系统实现。

We show that any inner operator valued function has an exact infinite time controllable and exact observable well posed realization.

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基于双曲型线性偏微分算子理论，引入并研究了具有非零初始值的拟线性双曲型方程的定解问题。

Based on theory of hyperbolic linear partial differential operator, the initial value problem of a kind of quasi-linear hyperbolic equations with non-zero initial values was introduced and studied.

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我们研究含非稠定闭线性算子的积-微分方程。

Integro-differential equations with nondensely defined linear operators in Banach space was considered.

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