您当前所在位置: 首页 > 学者
在线提示

恭喜!关注成功

在线提示

确认取消关注该学者?

邀请同行关闭

只需输入对方姓名和电子邮箱,就可以邀请你的同行加入中国科技论文在线。

真实姓名:

电子邮件:

尊敬的

我诚挚的邀请你加入中国科技论文在线,点击

链接,进入网站进行注册。

添加个性化留言

已为您找到该学者20条结果 成果回收站

上传时间

2007年09月17日

【期刊论文】Spectral Theory of Riesz Potentials on Quasi–Metric Spaces

杨大春, Hans Triebel, Dachun Yang

Math. Nachr. 238(2002), 160-184,-0001,():

-1年11月30日

摘要

This paper deals with spectral assertions of Riesz potentials in some classes of quasimetric spaces. In addition we survey briefly a few related subjects: integral operators, local means and function spaces, euclidean charts of quasi–metric spaces, relations to fractal geometry.

Riesz potentials, eigenvalue distributions, spaces of homogeneous type, Besov spaces, entropy numbers

上传时间

2007年09月17日

【期刊论文】BOUNDEDNESS OF SINGULAR INTEGRALS OF VARIABLE ROUGH CALDERON-ZYGMUND KERNELS ALONG SURFACES

杨大春, LIN TANG, DACHUN YANG

Integr. Equ. oper. Theory 43(2002)488-502,-0001,():

-1年11月30日

摘要

上传时间

2007年09月17日

【期刊论文】Riesz Potentials in Besov and Triebel–Lizorkin Spaces over Spaces of Homogeneous Type

杨大春, DACHUN YANG

Potential Analysis 19: 193-210, 2003,-0001,():

-1年11月30日

摘要

By using the discrete Calderón reproducing formulae, the author first establishes the boundedness of the Riesz-potential-type operator in homogeneous Besov and Triebel–Lizorkin spaces over spaces of homogeneous type. Then, by use of the T 1 theorems for these spaces, the author proves that this operator of Riesz potential type can be used as the lifting operator of these spaces.

space of homogeneous type, Riesz potential, Besov space, Triebel–Lizorkin space

上传时间

2007年09月17日

【期刊论文】Besov spaces on spaces of homogeneous type and fractals

杨大春, Dachun Yang

STUDIA MATHEMATICA 156(1)(2003),-0001,():

-1年11月30日

摘要

Let Γ be a compact d-set in Rn with 0 < d ≤n, which includes various kinds of fractals. The author shows that the Besov spaces Bspq(Γ) defined by two different and equivalent methods, namely, via traces and quarkonial decompositions in the sense of Triebel are the same spaces as those obtained by regarding Γ as a space of homogeneous type when 0 < s < 1, 1 < p <∞  and 1≤q≤∞.

Besov spaces, atoms, blocks, d-sets, fractals, spaces of homogeneous type

上传时间

2007年09月17日

【期刊论文】Some new spaces of Besov and Triebel-Lizorkin type on homogeneous spaces

杨大春, Yongsheng Han, Dachun Yang

STUDIA MATHEMATICA 156(1)(2003),-0001,():

-1年11月30日

摘要

New norms for some distributions on spaces of homogeneous type which include some fractals are introduced. Using inhomogeneous discrete Calderon reproducing formulae and the Plancherel-Polya inequalities on spaces of homogeneous type, the authors prove that these norms give a new characterization for the Besov and Triebel-Lizorkin spaces with p; q > 1 and can be used to introduce new inhomogeneous Besov and Triebel-Lizorkin spaces with p; q≤ 1 on spaces of homogeneous type. Moreover, atomic decompositions of these new spaces are also obtained. All the results of this paper are new even for Rn.

space of homogeneous type, Plancherel-Polya inequality, Besov space, Triebel-Lizorkin space, Calderon reproducing formula, Littlewood-Paley Sfunction, Littlewood-Paley g-function, unit, molecule

合作学者

  • 杨大春 邀请

    北京师范大学,北京

    尚未开通主页