| 1. | Mixed type duality for multiobjective fractional variational problems 多目标分式变分问题的混合对偶性 |
| 2. | Complementary variational problem 余变分问题 |
| 3. | Study of non - self - adjoint variational problem in low - frequency eddy current electromagnetic field 低频涡流电磁场非自伴变分问题的研究 |
| 4. | It interprets image editing as a variational problem concerning the adaptive adjustments to the zero - and first - derivatives of the images which correspond to the color and gradient items 模型将图像编辑问题理解为同时考虑图像的零阶图像的颜色和一阶图像的梯度变化的自适应调整问题。 |
| 5. | As we know , fem is a method that transforms differential equations with boundary conditions into a variational problem , and then performs a numerical analysis to get the result . the thesis gives the realization of fem detailedly 有限元是将微分方程转化为变分问题后进行数值求解的数值方法,本文详尽地给出了有限元的实现过程。 |
| 6. | A class of singular nonlinear parabolic equations was considered , after linearing this equations , the corresponding variational problem was obtained , furthermore the existence and uniqueness of weak solution was proved 摘要考虑一类奇异非线性抛物方程,通过对其右端线性化,得到一个与之相应的变分问题,进而证明其弱解的存在唯一性。 |
| 7. | The variational problem related to the coupled vector wave equations and boundary conditions of circular dielectric waveguide with arbitrary refractive index profile is solved using the finite element method ( fem ) 应用有限元方法求解了任意径向非均匀折射率分布圆柱对称介质波导中纵向场耦合波动方程定解问题所对应的变分问题,该方法不受弱导或高斯模场分布等限制。 |
| 8. | In this article , we give sufficient conditions for the existence of solutions to the vectorial hamilton - jacobi equations with dirichlet boundary condition : obtaining , in addition , an application to the theory of existence of minimizers for a class of non - convex variational problems 本文给出了一类依赖于自变量和未知函数的梯度的向量情况隐式偏微分方程的dirichlet问题的弱解的存在性的充分条件,并将该结果应用到一类非拟凸变分问题中去。 |
| 9. | In this context a genetic algorithm ( ga ) was applied to the four - dimension ( 4 - d ) variational data assimilation , which provided a kind of new and effective method in the initial field optimization . the theoretical basis and detailed algorithm were introduced in this paper . at the same time , according to the property of the variational problem itself , we designed the rational genetic coding , operators and parameters 本文将遗传算法应用于四维变分资料同化问题,提供了一种新的较为有效的nwp初始场优化方法,给出了相应的理论依据和详细算法,并结合变分问题本身的特点,设计了合理的遗传编码、遗传操作和遗传参数。 |