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arXiv 1111.6812math.FA
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函数空间中的原子表示及其在逐点乘子和同态中的应用

Atomic representations in function spaces and applications to pointwise multipliers and diffeomorphisms, a new approach

Benjamin Scharf

摘要:

在[25]的第四章中,Triebel证明了Besov型和Triebel-Lizorkin型函数空间中关于点态乘子和点态同态的两个定理。在每种情况下,他提出了两种方法,一种是通过原子,另一种是通过局部方法。虽然通过原子的方法是非常令人满意的长度和简单性,只有相当技术性的方法,通过本地手段证明了定理的充分普遍性。在本文中,我们推广了这些原子分解的两个扩展,一个是Skrzypczak(见[22]),另一个是Triebel和Winkelvoss(见[30]),这样我们就能够用原子表示给出一个简短的证明,得到比[25]中的两个定理更一般的结果。参考文献:[22] L.斯奇普切克有界几何流形上的原子分解。数学论坛,10(1):19-38,1998. [25]H.崔贝尔函数空间理论2。Birkhäuser,巴塞尔,1992年。[30]H. Triebel和H.温克尔沃什整环上函数空间的内禀原子刻画。数学Z 221(1):647-673,1996。

英文摘要:

In Chapter 4 of [25] Triebel proved two theorems concerning pointwise multipliers and diffeomorphisms in function spaces of Besov and Triebel-Lizorkin type. In each case he presented two approaches, one via atoms and one via local means. While the approach via atoms was very satisfactory concerning the length and simplicity, only the rather technical approach via local means proved the theorems in full generality. In this paper we generalize two extensions of these atomic decompositions, one by Skrzypczak (see [22]) and one by Triebel and Winkelvoss (see [30]) so that we are able to give a short proof using atomic representations getting an even more general result than in the two theorems in [25]. References: [22] L. Skrzypczak. Atomic decompositions on manifolds with bounded geometry. Forum Math., 10(1):19-38, 1998. [25] H. Triebel. Theory of Function Spaces II. Birkhäuser, Basel, 1992. [30] H. Triebel and H. Winkelvoß. Intrinsic atomic characterizations of function spaces on domains. Math. Z., 221(1):647-673, 1996.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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