共查询到20条相似文献,搜索用时 93 毫秒
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有界正则函数的导数估计 总被引:2,自引:0,他引:2
在这篇文章中,主要讨论了n阶导数的估计式,即对有界正则函数φ(z)=c0 c1z … cnz^n …(在│z│1内正则),从已知的三阶、四阶导数估计式,利用归纳法原理及有界正则函数的性质推出n阶导数的一般估计式,并推出在│z│<1内正则的正实部函数的n阶导数的一般估计式。 相似文献
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设f(z)是开平面C内的亚纯函数,E.Mues证明了对任何自然数k有杨乐推广以上不等式,证明了本文推广了以上结果,证明了以下定理:设f(z)为亚纯函数,则对任何自然数k有例子显示此不等式是精确的。 相似文献
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亚纯函数及其导数的唯一性 总被引:1,自引:0,他引:1
本文证明了如下结果:设k,n是两个正整数,a,b,w是三个有穷复数,满足an≠bn,wn=1.如果一开平面上的亚纯函数f(z)以及它的k阶导数f(k)(z)分担两个集合S1={awi| i=1,2,…, n} , S2={bwi| i=1,2,…,n},则f(z)≡tf(k)(z),其中tn=1. 相似文献
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在非标准分析框架下,用离散函数定义新广义函数,用差商定义其导数.对Schwartz广义函数以及更广的Gevrey超广义函数,文章证明了广义导数可以用差商表示.此外还给出了此新广义函数和Sobolev理论的关系. 相似文献
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MeromorphicFunctionsofDerivativesCoveringCertainFiniteSetsattheSamePoints¥WenZhongliang(WenzhouTeachersCollege,Zhejiang,32500... 相似文献
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进一步讨论亚纯函数的k阶导数具有公共小函数的唯一性问题,得到两个亚纯函数唯一性问题的结果,改进了李平的有关结果. 相似文献
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Let M be a noncompact complete Riemannian manifold. We consider the existence of harmonic functions with |∇u| ∈ L^p(M). 相似文献
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We define and investigate the scale independent aggregation functions that are meaningful to aggregate finite ordinal numerical scales. Here scale independence means that the functions always have discrete representatives when the ordinal scales are considered as totally ordered finite sets. We also show that those scale independent functions identify with the so-called order invariant functions, which have been described recently. In particular, this identification allows us to justify the continuity property for certain order invariant functions in a natural way.
Mathematics Subject Classifications (2000) Primary: 91C05, 91E45; Secondary: 06A99, 39A12.Jean-Luc Marichal: Partially supported by a grant from the David M. Kennedy Center for International Studies, Brigham Young University.Radko Mesiar: Partially supported by grants VEGA 1/0273/03 and APVT-20-023402. 相似文献
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Yusuke Higuchi 《Annals of Global Analysis and Geometry》2003,24(3):201-230
We introduce the boundary area growth as a new quantity for an infinite graph. Using this, we give some upper bounds for the bottom of the spectrum of the discrete Laplacian which relates closely to the transition operator. We also give some applications and examples. 相似文献
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For certain sets F (1)
1, a characterization is given of when there is an extension of the ground model (i.e., a forcing extension or an actual extension, which is 1-preserving) containing an h which dominates each f F mod finite. If there exists such an h in some extension, then one exists in a forcing extension, in fact a canonical one. 相似文献
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本文针对Stokes-问题给出了[12]发展的基于局部bubble-函数稳定化有限元法与Gals-稳定化有限元法,bubble函数扩充元法的等价关系 相似文献