首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   43篇
  国内免费   6篇
  完全免费   8篇
  数学   57篇
  2018年   2篇
  2017年   1篇
  2016年   1篇
  2014年   2篇
  2013年   1篇
  2012年   2篇
  2011年   2篇
  2010年   4篇
  2009年   5篇
  2008年   7篇
  2007年   5篇
  2006年   4篇
  2005年   1篇
  2004年   3篇
  2003年   6篇
  2002年   2篇
  2001年   1篇
  2000年   4篇
  1999年   1篇
  1998年   1篇
  1996年   2篇
排序方式: 共有57条查询结果,搜索用时 31 毫秒
1.
齐型空间上的Herz空间及其应用   总被引:7,自引:0,他引:7  
定义了一类齐型空间上的Herz空间及弱Herz空间,研究了定义在这些空间中的一类次线性算子的性质.  相似文献
2.
This paper is the first of the author’s three articles on stability in the Liouville theorem on the Heisenberg group. The aim is to prove that each mapping with bounded distortion of a John domain on the Heisenberg group is close to a conformal mapping with order of closeness in the uniform norm and order of closeness K − 1 in the Sobolev norm L p 1 for all . In the present article we study integrability of mappings with bounded specific oscillation on spaces of homogeneous type. As an example, we consider mappings with bounded distortion on the Heisenberg group. We prove that a mapping with bounded distortion belongs to the Sobolev class W p,loc 1 , where p → ∞ as the distortion coefficient tends to 1. Original Russian Text Copyright ? 2007 Isangulova D. V. __________ Translated from Sibirskiĭ Matematicheskiĭ Zhurnal, Vol. 48, No. 2, pp. 313–334, March–April, 2007.  相似文献
3.
Commutators of singular integrals on spaces of homogeneous type   总被引:1,自引:0,他引:1  
In this work we prove some sharp weighted inequalities on spaces of homogeneous type for the higher order commutators of singular integrals introduced by R. Coifman, R. Rochberg and G. Weiss in Factorization theorems for Hardy spaces in several variables, Ann. Math. 103 (1976), 611–635. As a corollary, we obtain that these operators are bounded on L p (w) when w belongs to the Muckenhoupt’s class A p , p > 1. In addition, as an important tool in order to get our main result, we prove a weighted Fefferman-Stein type inequality on spaces of homogeneous type, which we have not found previously in the literature.  相似文献
4.
Let 0<γ<1, b be a BMO function and the commutator of order m for the fractional integral. We prove two type of weighted Lp inequalities for in the context of the spaces of homogeneous type. The first one establishes that, for A weights, the operator is bounded in the weighted Lp norm by the maximal operator Mγ(Mm), where Mγ is the fractional maximal operator and Mm is the Hardy-Littlewood maximal operator iterated m times. The second inequality is a consequence of the first one and shows that the operator is bounded from to , where [(m+1)p] is the integer part of (m+1)p and no condition on the weight w is required. From the first inequality we also obtain weighted Lp-Lq estimates for generalizing the classical results of Muckenhoupt and Wheeden for the fractional integral operator.  相似文献
5.
奇异积分算子在实与复分析中的应用   总被引:1,自引:1,他引:0  
李松鹰 《数学进展》2000,29(3):193-213
本文是一份综合报告,它基于作者的一部份研究工作和他在北京师范大学的五次讲演稿,以奇异分算子作为桥梁联结函数空间的结果和偏微分方程的结果作了阐述,它包括奇次空间上的调和分析,并应用到多复变函数论上,综述了右的结果并提出未解决的问题。  相似文献
6.
齐型空间上的双线性Calderon-Zygmund奇异积分算子   总被引:1,自引:0,他引:1       下载免费PDF全文
文在齐型空间上引入双线性Calderon-Zygmund奇异积分算子的基本概念, 研究了其基本性质以及在L L1上的弱有界性.  相似文献
7.
齐型空间上的T(1)定理和交换子   总被引:1,自引:0,他引:1       下载免费PDF全文
本文在齐型空间上讨论弱核形式的 T(1) 定理, 并得到弱核形式的奇异积分算子与 BMO 函数的交换子的Lp有界性及端点估计 (1<p<∞ ).  相似文献
8.
齐型空间上的Lipschitz函数与Littlewood-Paley g-函数   总被引:1,自引:0,他引:1       下载免费PDF全文
在θ阶正规齐型空间上,如果算子列{Sk}k∈Z是恒等逼近,Dk=Sk-Sk-1;本文给出一个用{Dk}k∈Z表达的f∈Lipα(Lipschitz函数类,0<α<θ)的充分必要条件.作为其推论得到,对于f∈LIpα,其Littlewood-Paleyg函数g(f)(X)或者处处为无穷大,或者在Lipα上有界.  相似文献
9.
We avoid the assumption given in the work of C. Pérez and R. Wheeden (2001) to prove boundedness properties of certain maximal functions in a general setting of the spaces of homogeneous type with infinite measure. In addition, an example shows that the result can be false if the space has finite measure.

  相似文献

10.
Let be a space of homogeneous type, and be the generator of a semigroup with Gaussian kernel bounds on . We define the Hardy spaces of for a range of , by means of area integral function associated with the Poisson semigroup of , which is proved to coincide with the usual atomic Hardy spaces on spaces of homogeneous type.

  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