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排序方式: 共有5785条查询结果,搜索用时 203 毫秒
911.
This paper is devoted to discuss the regularity of the weak solution to a class of non-linear equations corresponding to Hardy-Sobolev
type inequality on the H-type group. Combining the Serrin's idea and the Moser's iteration, Lp estimates of the weak solution are obtained, which generalize the results of Garofalo and Vassilev in [6, 14]. As an application,
asymptotic behavior of the weak solution has been discussed. Finally, doubling property and unique continuation of the weak
solution are given.
*This material is based upon work funded by Zhejiang Provincial Natural Science Foundation of China under Grant No. Y606144. 相似文献
912.
塑性全量理论的变分不等式模式及其无迭代解 总被引:1,自引:0,他引:1
变分不等式是解决一类带单侧约束的定常力学问题的有效数学工具.本文就弹塑性全量理论构造了等价的变分不等式模式,解除了弹塑性问题本构约束的不等式关系,比一般能量形式的描述更为简洁.它便于计算,具有可靠的数学依据,可以用二次规划法求解.计算时无需分级加载迭代,一步即可得收敛解. 相似文献
913.
The Hölder continuity is proved for the gradient of the solution Jo the one-sided obstacle problem of the following variational inequality in the case 1
相似文献
914.
王颖坚 《应用数学和力学(英文版)》1990,11(4):343-353
Basic equations for large deflection theory of thin orthotropic circular plate with variable thickness are derived in this paper. The modified iteration method is adopted to solve the large deflection problem of thin orthotropic circular plate with variable thickness under uniform pressure. If ε=0, then the solution derived from the result in this paper coincides completely with the result given by J. Nowinski (using perturbation method) for solving large deflection problem of thin orthotropic circular plate with constant thickness under uniform pressure. 相似文献
915.
张祥 《应用数学和力学(英文版)》1990,11(11):1067-1074
In this paper,we consider the vector nonlinear boundary value problem:εy~v=f(x,y,z,y′,ε),y(0)=A_1,y(1)=B_1εz~v=g(x,y,z,z′,ε),z(0)=A_2,z(1)=B_2whereε>0 is a small parameter,0≤x≤1 ,f and g are continuous functions in R~4,Under appropriate assumptions,by means of the differential inequalities,we demonstratethe existence and estimation,involving boundary and interior layers,of the solutions to theabove problem. 相似文献
916.
Recently,many authors have generalized the famous Ky Fan’s minimaxinequality.In this paper,we put forward T-diagonal convexity(concavity)conditions anddevelop the main results in this respect.Next.we discuss some fixed point problems,andgeneralize the Fan-Glicksberg’s fixed point theorem. 相似文献
917.
本文研究求完全广义强的非线性拟变分不等式的逼近解的迭代算法。概括了该须域中作为特例的若干已知结果。我们的结果是Siddiqi与Ansari.Ding及Zeng的结果的推广和改进。 相似文献
918.
殷向荣 《浙江大学学报(理学版)》1994,21(4):360-364
关于算子Tf(x)=integral from n=0 to x (φ(t/x))f(t)dt的双权Lorentz模不等式,我们给出了充分和必要条件,其中φ:(0,1)→(0,∞)是非增且满足φ(ab)≤D(φ(a)+φ(b))0相似文献
919.
In this paper, we propose a competition-share 3-category principle, on which we unite the problems of natural resources, energy,
population and environment and so on into a mutual scheme, and provide a united model for the comprehensive research on these
problems. This makes the idea of operation analysis of natural resources clearer and the relationships between each of their
parts more obvious. On the basis of the above discussion, we propose mathematical models for the operation analysis of multi-networks
and the solution of the above global comprehensive problems. We discuss, especially, Shengke (growth and restraint) relationships
between two networks of natural resources and share-competitors and their analysis models, providing mathematical tools for
solving the problems of the resource-population and the resource-economy, etc.
Supported by Science Fund of Lanzhou University. 相似文献
920.
林拜松 《应用数学和力学(英文版)》1988,9(1):31-36
All the stress components at a rapidly propagating crack-tip in an elastic perfectly-plastic material are the functions of only. Making use of this condition and the equations of steady-state motion, stress-strain relations and Hill anisotropic yield condition, we obtain the general solutions in both the cases of anti-plane and in-plane strain. Applying these two general solutions to propagating Mode III and Mode I cracks, respectively, the anisotropic plastic stress fields at the rapidly propagating tips of Mode III and Mode I cracks are derived. 相似文献