block operator matrices 块算子矩阵
differential operator matrices 微分算子阵
upper triangular operator matrices 上三角算子矩阵
operator partial matrices 缺项算子矩阵
In Chapter 2,by using space decomposition and block operator matrices,the relations between the angle of two closed subspaces and norms,spectra,the reduced minimal numerical ranges,ranges closedness of operators are researched.
第二章运用空间分解理论,分块算子矩阵技巧研究了两个子空间之间的夹角与算子的范数、谱、约化极小模以及算子乘积的值域闭性的关系等。
参考来源 - 初等算子与子空间夹角以及效应代数相关研究·2,447,543篇论文数据，部分数据来源于NoteExpress
A sufficient condition is obtained for a class of second order operator matrices to generate C0 semigroups.
给出了一类二阶算子矩阵生成C0半群的一个充分条件，并应用此条件证明了一类具体的二阶算子矩阵可生成C0半群。
The full transformation method deals with each boundary constraint node, and for stiff matrices and displacement vector, using operator transformation, relative operator calculation is performed.
全变换方法用于处理每一边界约束点，对刚度矩阵和位移矢量作相应的算子运算。
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