排序方式: 共有43条查询结果,搜索用时 46 毫秒
1.
BiNing HuangDaren 《高校应用数学学报(英文版)》2001,16(4):397-401
In this note, a criterion for orthonormality of refinable functions via characteristicpolynomial of a matrix is given. 相似文献
2.
3.
考虑2×2严格双曲型守恒律组(E),它是在Lax意义下真正非线性的,带有初始条件(Ⅰ)众所周知,在条件(M),(C),(Ⅴ)下,初值问题(E)、(Ⅰ)存在整体光滑解,(参看文[1,2])。然而在文中所采用的方法本质地用来求广义解。本文是用粘性消失法证明文[1]的结果。我们把这个结果看作用粘性消失法求(E)、(Ⅰ)的广义解的第一步。本文也可以看作文[4]的某种推广。在文[4]中,(E)是在Lagrange坐标下均熵气体动力学方程组,但无需条件(Ⅴ)。也是用粘性消失法求得光滑解。 相似文献
4.
In this paper, a new method is presented for designing M-band biorthogonal symmetric wavelets. The design problem of biorthogonal linear-phase scaling filters and wavelet filters
as a quadratic programming problem with the linear constraints is formulated. The closed-form solution is given and a design
example is presented. 相似文献
5.
Jie-Min Zhan Yao-Song Chen 《Communications in Nonlinear Science & Numerical Simulation》1996,1(4):55-58
An operator splitting method combining finite difference method and finite element method is proposed in this paper by using boundary-fitted coordinate system. The governing equation is split into advection and diffusion equations and solved by finite difference method using boundary-fitted coordinate system and finite element method respectively. An example for which analytic solution is available is used to verified the proposed methods and the agreement is very good. Numerical results show that it is very efficient. 相似文献
6.
7.
本文证明了所有具有偶顶点数的强正则图是1—可扩的,如果强正则图G具有偶顶点数和参数(v,k,α,β),并且G的圈边连通度至少为3k—3测G是2—可扩的. 相似文献
8.
We prove weighted restriction type estimates for Grushin operators. These estimates are then used to prove sharp spectral multiplier theorems as well as Bochner–Riesz summability results with sharp exponent. 相似文献
9.
10.
关于含有Stirling公式的双边不等式(英) 总被引:2,自引:1,他引:1
本文证明了有关n!的一个便于应用的双边不等式,它对一切自然数都成立,且当n变大时,上界不等式能给出误差界为O(n-3)的Stirling渐近公式,从一定意义上说,文中的上界不等式具有最优形式,因为其中的常数0.5已作了最佳选择.文末还给出了关于Catalan数的一个双边不等式. 相似文献