首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 62 毫秒
1.
广义Chebyshev-Vandermonde方程组的快速算法与求逆公式成礼智(国防科技大学)INERSIONFORMULAANDFASTSOLUTIONFORGENERALCHEBYSHEV-VANDERMONDEEQUATIONS¥ChengLi...  相似文献   

2.
THE ERRORS ESTIMATION OF THE CHEBYSHEV SPECTRAL-DIFFERENCE METHOD FOR TWO-DIMENSIONAL VORTICITY EQUATIONTHEERRORSESTIMATIONOF...  相似文献   

3.
EXISTENCEANDUNIQUENESSOFSOLUTIONSFORNONLINEARBOUNDARYVALUEPROBLEMSOFVOLTERRA-HAMMERSTEINTYPEINTEGRODIFFERENTIALEQUATION¥WangG...  相似文献   

4.
ONGLOBALSOLUTIONFORACLASSOFSYSTEMSOFMULTI-DIMENSIONALGENERALIZEDZAKHAROVTYPEEQUATIONGUOBOLING(郭柏灵)(InstituteofAppliedandCompu...  相似文献   

5.
SYMMETRIES AND GROUP-INVARIANT SOLUTIONS OF DIFFERENTIAL EQUATIONS   总被引:4,自引:0,他引:4  
SYMMETRIESANDGROUP-INVARIANTSOLUTIONSOFDIFFERENTIALEQUATIONSTIANCHOUAbstract:Foradifferentialequation,atheoreticalproofofther...  相似文献   

6.
THEGENERALSCHEMEFORHIGHER-ORDERDECOMPOSITIONSOFZERO-CURVATUREEQUATIONSASSOCIATEDWITH■(2)¥ZENGYUNBO(曾云波)(DeportmentofAppliedMa...  相似文献   

7.
STABILITYINDIFFERENTIALEQUATIONSWITHCONTINUOUSANDPIECEWISECONSTANTARGUMENTSMing-PoChenSTABILITYINDIFFERENTIALEQUATIONSWITHCON...  相似文献   

8.
ASYMPTOTICBEHAVIOROFNONOSCILLATORYSOLUTIONSOFASECONDORDERFUNCTIONALDIFFERENTIALEQUATIONS(孟繁伟)曲阜师范大学,邮编:273165MengFanwei(QufuN...  相似文献   

9.
EXACTBOUNDSOFTHEMODIFIEDLPTALGORITHMSAPPLYINGTOPARALLELMACHINESSCHEDULINGWITHNONSIMULTANEOUSMACHINEAVAILABLETIMESLINGUOHUI,H...  相似文献   

10.
ANITERATIVEALGORITHMFORDETERMININGTIME-DEPENDENTCOEFFICIENTOFTWODIMENSIONALLINEARWAVEEQUATION(苏超伟)西北工业大学,邮编:710072SuChaowei(N...  相似文献   

11.
BCI-代数的Fuzzy广义结合理想   总被引:1,自引:0,他引:1  
引入了BCI-代数的fuzzy广义结合理想的概念,给出了它的一种刻画,讨论了fuzzy广义结合理想与其它fuzzy理想的关系,并利用fuzzy广义结合理想得到了拟结合BCI-代数成为结合BCI-代数的几个特征。  相似文献   

12.
Four steady-state general solutions are derived in this paper for the two-dimensional equation of isotropic thermoelastic materials. Using the differential operator theory, three general solutions can be derived and expressed in terms of one function, which satisfies a six-order partial differential equation. By virtue of the Almansi’s theorem, the three general solutions can be transferred to three general solutions which are expressed in terms of two harmonic functions, respectively. At last, a integrate general solution expressed in three harmonic functions is obtained by superposing the obtained two general solutions. The proposed general solution is very simple in form and can be used easily in certain boundary problems. As two examples, the fundamental solutions for both a line heat source in the interior of infinite plane and a line heat source on the surface of semi-infinite plane are presented by virtue of the obtained general solutions.  相似文献   

13.
A unified recursive mathematic model is established for full forward kinematics analysis of various redundant kinematic hybrid manipulators which are formed by several different parallel manipulators connected in series. In the established model, the relationships between the general input velocity/acceleration and the general output velocity/acceleration are discovered. The Jacobian matrices for mapping the general output velocities to the general input velocity and the Hessian matrices for mapping the general output velocities to the general input acceleration are derived. The unified iteration recursive formulae are derived for solving the general output velocity/acceleration of the end moving platform of the redundant kinematic hybrid manipulator by only giving the general input velocity/acceleration of every parallel manipulator. A 3D model of a novel (4SPS + SPR )+ (4SPS/SP) + 3SPR type hybrid manipulator is constructed and its full forward velocity/acceleration formulae are derived from the established unified recursive mathematic model and are proved to be correct by utilizing a simulation solution of the novel redundant kinematic hybrid manipulator.  相似文献   

14.
区别度诱导的广义模糊熵   总被引:1,自引:1,他引:0  
广义模糊熵是模糊熵在广义模糊补意义下的推广,本文从区别度的角度给出几个生成广义模糊熵的途径;通过一个具体的区别度公式得到了相应的一些广义模糊熵表达式,为实际使用广义模糊熵做了一些理论上的铺垫.  相似文献   

15.
强Ockham代数与剩余格   总被引:1,自引:1,他引:0  
首先讨论了Ockham代数与剩余格的关系,引入了强Ockham代数的概念,并讨论了它的基本性质.然后,将著名的风蕴涵和风算子推广到Ockham代数上,证明了添加广义R0蕴涵和广义风算子后的Ockham代数L成为剩余格的充要条件是L为强Ockham代数.最后给出若干重要例子,以此来说明强Ockham代数的条件是独立的.  相似文献   

16.
We study a general finite horizon, periodic review combined inventory and pricing model with N suppliers and T periods, where both the demands and the supply mechanisms are random. The random supply mechanisms are of a general type that includes most structures encountered in practice. Demands are price dependent according to general, stochastic demand functions. We characterize the optimal combined pricing and ordering policies to all N suppliers. The general results pertain to general independent supply mechanisms. Under random capacities—one of the special random supply mechanisms—they also extend to suppliers that are positively dependent on each other.  相似文献   

17.
Summary. In this paper we combine an earlier method developed with K. Jetter on general cardinal interpolation with constructions of compactly supported solutions for cardinal interpolation to gain compactly supported fundamental solutions for the general interpolation problem. The general interpolation problem admits the interpolation of the functional and derivative values under very weak restrictions on the derivatives to be interpolated. In the univariate case, some known general constructions of compactly supported fundamental solutions for cardinal interpolation are discussed together with algorithms for their construction that make use of MAPLE. Another construction based on finite decomposition and reconstruction for spline spaces is also provided. Ideas used in the latter construction are lifted to provide a general construction of compactly supported fundamental solutions for cardinal interpolation in the multivariate case. Examples are provided, several in the context of some general interpolation problem to illustrate how easy is the transition from cardinal interpolation to general interpolation. Received May 11, 1993 / Revised version received August 16, 1994  相似文献   

18.
Two general forms of continuities are introduced. The relation-ships between these notions are examined. A general setting for decompositions of continuities is described.  相似文献   

19.
A study is made of two classes of product topologies on powers of spaces: the general box product topologies, and the general uniform product topologies. Some examples are given and some results are shown about the properties of these general product spaces. This is applied to show that certain spaces of continuous functions with the fine topology are homeomorphic to box product spaces, and certain spaces of continuous functions with the uniform topology are homeomorphic to uniform product spaces.  相似文献   

20.
Although general theories are beginning to emerge in the area of automata based complexity theory, there are very few general methods or even general problem formulations in the area of arithmetic complexity. In this paper we propose and defined a general model for studying bilinear multiplication in order to provide a common framework for discussing a wide class of problems. The problem of minimizing the number of multiplications required to perform a calculation leads to a problem in matrix algebra relating to the expansion of a given set of matrices as linear combinations of rank-one matrices. In this paper we make a systematic attack on this problem and derived some general results which unify and extend numerous known results.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号