查询词典 biharmonic equation

With Airy stress function, a plane elasticity problem can be simplified to solve a biharmonic function equation.

通过引入Airy应力函数，平面问题可以归结为在给定的边界条件下求解一个双调和方程。

This paper mainly studied the semilinear biharmonic elliptic equation with multi-singularity and critical exponcnt,in which we mainly studied,where N≥5,k∈N,(λ_1,λ_2,…,λ_k)∈R~4,(a_1,a_2,"",a_k)∈R~(4n) and 2~*=2N/N-4 is the critical Sobolev exponent.

文章主要在有界域Ω中研究了如下含多奇性的半线形椭圆型问题其中N≥5，k∈N，(λ_1，λ_1，…，λ_k)∈R~k，(a_1，a_2，…，a_k)∈R~且2~*=2N/N-4是临界的嵌入指数，由于Sobolev嵌入失去紧性，所以文章将通过集中紧原理得到正解的存在性。

It is not only introduced the two measures taken to solve the biharmonic equations , but the topical grids of H-type、C-type 、 and O-type are generated with this equation.

文中不仅对数值求解双调和方程的两种不同方法作了介绍，还利用该方程生成了典型的H型、C型、O型网格。

For fourth order p-biharmonic elliptic equation with Dirichiet boundary conditions, a new Pohozaev type identity is established.

对于具有Dirichlet边界条件的四阶p-双调和椭圆方程，建立了一个新的Pohozaev恒等式。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。