In a general case, the continuous problem and corresponding discrete form are formulated, in which the so called adjoint variable is introduced and then the adjoint equation is derived.
在一般化的意义上，给出了连续问题及其相应的离散形式。引入伴随变量，并由此导出伴随方程。
An improved adjoint operator method is employed to compute the third order normal form of six dimensional nonlinear dynamical systems and the associated nonlinear transformation for the first time.
本文首次用一种改进的共轭算子法研究了六维非线性系统的三阶规范形以及所用的非线性变换。
In this paper, the classifications of boundary conditions of the self-adjoint differential operators and its canonical form are studied.
本文主要研究自共轭微分算子边界条件的分类及其标准型。
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