全文获取类型
收费全文 | 368篇 |
免费 | 5篇 |
国内免费 | 22篇 |
专业分类
化学 | 4篇 |
力学 | 15篇 |
综合类 | 1篇 |
数学 | 333篇 |
物理学 | 42篇 |
出版年
2023年 | 2篇 |
2022年 | 2篇 |
2021年 | 1篇 |
2020年 | 3篇 |
2019年 | 4篇 |
2018年 | 5篇 |
2017年 | 3篇 |
2016年 | 7篇 |
2015年 | 3篇 |
2014年 | 14篇 |
2013年 | 19篇 |
2012年 | 12篇 |
2011年 | 25篇 |
2010年 | 22篇 |
2009年 | 42篇 |
2008年 | 21篇 |
2007年 | 32篇 |
2006年 | 17篇 |
2005年 | 13篇 |
2004年 | 16篇 |
2003年 | 16篇 |
2002年 | 14篇 |
2001年 | 10篇 |
2000年 | 12篇 |
1999年 | 13篇 |
1998年 | 19篇 |
1997年 | 8篇 |
1996年 | 9篇 |
1995年 | 5篇 |
1994年 | 4篇 |
1993年 | 4篇 |
1991年 | 1篇 |
1990年 | 3篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1985年 | 2篇 |
1984年 | 3篇 |
1983年 | 1篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1966年 | 1篇 |
排序方式: 共有395条查询结果,搜索用时 31 毫秒
1.
2.
We compute the normals to faces of b 2,2-orbihedra and apply the results to Operator Interpolation Theory. 相似文献
3.
《Stochastic Processes and their Applications》2020,130(8):4766-4792
We consider Malliavin smoothness of random variables , where is a pure jump Lévy process and the function is either bounded and Hölder continuous or of bounded variation. We show that Malliavin differentiability and fractional differentiability of depend both on the regularity of and the Blumenthal–Getoor index of the Lévy measure. 相似文献
4.
空间理性八节点块体元 总被引:1,自引:0,他引:1
推导出空间八节点块体理性有限元列式,采用具有直到三次多项式的空间问题的微分方程的解作为插值的近似函数,数例结果表明空间理性八节点块体元的有效性。 相似文献
5.
Zhongying Chen 《Journal of Mathematical Analysis and Applications》2011,383(2):522-1258
In this paper, we generalize the complex shifted Laplacian preconditioner to the complex shifted Laplacian-PML preconditioner for the Helmholtz equation with perfectly matched layer (Helmholtz-PML equation). The Helmholtz-PML equation is discretized by an optimal 9-point difference scheme, and the preconditioned linear system is solved by the Krylov subspace method, especially by the biconjugate gradient stabilized method (Bi-CGSTAB). The spectral analysis of the linear system is given, and a new matrix-based interpolation operator is proposed for the multigrid method, which is used to approximately invert the preconditioner. The numerical experiments are presented to illustrate the efficiency of the preconditioned Bi-CGSTAB method with the multigrid based on the new interpolation operator, also, numerical results are given for comparing the performance of the new interpolation operator with that of classic bilinear interpolation operator and the one suggested in Erlangga et al. (2006) [10]. 相似文献
6.
G. Allasia R. Besenghi R. Cavoretto A. De Rossi 《Applied mathematics and computation》2011,217(12):5949-5966
A new local algorithm for bivariate interpolation of large sets of scattered and track data is presented. The method, which changes partially depending on the kind of data, is based on the partition of the interpolation domain in a suitable number of parallel strips, and, starting from these, on the construction for any data point of a square neighbourhood containing a convenient number of data points. Then, the well-known modified Shepard’s formula for surface interpolation is applied with some effective improvements. The proposed algorithm is very fast, owing to the optimal nearest neighbour searching, and achieves good accuracy. Computational cost and storage requirements are analyzed. Moreover, the efficiency and reliability of the algorithm are shown by several numerical tests, also performed by Renka’s algorithm for a comparison. 相似文献
7.
Veli SHAKHMUROV 《数学年刊B辑(英文版)》2011,32(5):749-770
The free boundary value problems for elliptic differential-operator equations are studied. Several conditions for the uniform
maximal regularity with respect to boundary parameters and the Fredholmness in abstract L
p
-spaces are given. In application, the nonlocal free boundary problems for finite or infinite systems of elliptic and anisotropic
type equations are studied. 相似文献
8.
The problem of interpolation of scattered data on the unit sphere has many applications in geodesy and Earth science in which the sphere is taken as a model for the Earth. Spherical radial basis functions provide a convenient tool for constructing the interpolant. However, the underlying linear systems tend to be ill-conditioned. In this paper, we present an additive Schwarz preconditioner for accelerating the solution process. An estimate for the condition number of the preconditioned system will be discussed. Numerical experiments using MAGSAT satellite data will be presented. 相似文献
9.
10.
BIVARIATE FRACTAL INTERPOLATION FUNCTIONS ON RECTANGULAR DOMAINS 总被引:1,自引:0,他引:1
Xiao-yuan Qian 《计算数学(英文版)》2002,20(4):349-362
AbstractNon-tensor product bivariate fractal interpolation functions defined on gridded rectangular domains are constructed. Linear spaces consisting of these functions are introduced. The relevant Lagrange interpolation problem is discussed. A negative result about the existence of affine fractal interpolation functions defined on such domains is obtained. 相似文献