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161.
We obtain sufficient conditions for the set of roots of an entire function of order zero of strongly regular growth to possess an angular density. 相似文献
162.
163.
We consider a continuum model describing steady flows of a miscible mixture of two fluids. The densities ϱ
i
of the fluids and their velocity fields u
(i) are prescribed at infinity: ϱ
i
|∞ = ϱ
i∞ > 0, u
(i)|∞ = 0. Neglecting the convective terms, we have proved earlier that weak solutions to such a reduced system exist. Here we
establish a uniqueness type result: in the absence of the external forces and interaction terms, there is only one such solution,
namely ϱ
i
≡ ϱ
i∞, u
(i) ≡ 0, i = 1, 2.
This work was supported by the SFB 611 at the University of Bonn and the European HYKE network (contract no. HPRN-CT-2002-00282).
The third author was also supported by the project CSF 201/03/0934, and by MSM 0021620839. 相似文献
164.
In this article we prove that the basic finite Hankel transform whose kernel is the third-type Jackson q-Bessel function has only infinitely many real and simple zeros, provided that q satisfies a condition additional to the standard one. We also study the asymptotic behavior of the zeros. The obtained results are applied to investigate the zeros of q-Bessel functions as well as the zeros of q-trigonometric functions. A basic analog of a theorem of G. Pólya (1918) on the zeros of sine and cosine transformations is also given. 相似文献
165.
光子晶体光纤的色散特性 总被引:1,自引:0,他引:1
本文用有效折射率模型 ,分析了光子晶体光纤的色散特性 ,定量给出了光子晶体光纤双折射特性与光纤参数之间的关系 ,指出了光子晶体光纤具有多个零色散波长 ,对相关现象作出了合理的解释。 相似文献
166.
OneClassofHyperbolicFunctionEquationand Its ApplicationBaiFengtu(白凤图)(NorthChinaInstituteofWaterConservancyandHydro-power)Abs... 相似文献
167.
168.
170.
Giovanna Carnovale 《Acta Appl Math》1998,53(2):187-228
This paper answers a few questions about algebraic aspects of bialgebras, associated with the family of solutions of the quantum Yang–Baxter equation in Acta Appl. Math. 41 (1995), pp. 57–98. We describe the relations of the bialgebras associated with these solutions and the standard deformations of GLn and of the supergroup GL(m|n). We also show how the existence of zero divisors in some of these algebras are related to the combinatorics of their related matrix, providing a necessary and sufficient condition for the bialgebras to be a domain. We consider their Poincaré series, and we provide a Hopf algebra structure to quotients of these bialgebras in an explicit way. We discuss the problems involved with the lift of the Hopf algebra structure, working only by localization. 相似文献