查询词典 boundary operator

An integrable model with non-period boundary condition is constructed by use of factorized L operator.

用因式化的L算子构造了一类在非周期边界条件下的可积模型。

It is most likely that only a part of the karst caves could be detected if the boundary of the karsts cave has a certain horizontal extension respectively to measurement layout, but the interface of the karsts caves is not completely smooth plane, and its normal direction is not perpendicular to the tunnel axis. However, the precision of the cave detection is related to interface wave impedance difference of the karst caves, groundwater detection, operator's data acquisition experience and data processing level and so on.

如果溶洞的边界相对于TSP测量布线有一定的横向延伸性，其边界面不一定是完全平滑的表面，但其法线方向与隧道轴线不完全垂直，这类溶洞有可能被部分探测，但探测精度还与溶洞界面两侧的波阻抗差、对地下水的探测、操作人员的数据采集经验和数据处理水平等有关。

The self-adjoint boundary-value problems and spectral theory of differential operators are important and fundamental problems in the operator theory.

微分算子自伴边值问题及谱理论是算子理论的重要而基本问题，它是同微分方程、数学物理和量子力学的某些重要问题相联系而发展起来的。

Moreover, it indicates that the error is reduced with the increase of the exponent number of the Asymptotic Boundary Conditions. In the third chapter, based on the Laplace equation, the limitation of the variation methods are deduced from the process proving the operator to be self-adjoint and positive definite.

针对二阶渐近边界条件中含有微分项的情况，第三章研究了基于变分的有限元方法对边界条件的限制，提出对所适用的边界条件的要求，从而说明针对二阶渐近边界条件问题可以采用迦辽金有限元方法。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。