To obtain the existence and the estimation of the eigenvalue for the operator_H, we use the variational method which is similar to the case in the Euclidean space.
本文采用类似欧式空间中处理特征值问题的变分方法得到了次拉普拉斯算子_H特征值的存在性以及特征值的几类估计。
参考来源 - Heisenberg群上次拉普拉斯算子的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
We can also see the variational method plays an important role in classical differential geometry.
我们可以看到变分法在经典微分几何中的重要作用。
We study these variational problems respectively by the variational method and the theory of variable exponent spaces.
我们主要运用变分法和变指数空间的理论作为工具研究了这几个问题。
Imaging formulas of Gaussian beams in nonlinear conical GRIN rod lenses are derived from the variational method and the ABCD law.
根据变分法和ABCD定律，导出了非线性锥形梯度折射率棒透镜中高斯光束的成像公式。
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