The Haar System as a Schauder Basis in Spaces of Hardy–Sobolev Type
The Haar System as a Schauder Basis in Spaces of Hardy–Sobolev Type
复制标题
DOI:
10.1007/s00041-017-9583-1
复制
发表时间:
2016-09
影响因子:
1.2
通讯作者:
G. Garrigós;A. Seeger;T. Ullrich
中科院分区:
文献类型:
--
作者:
G. Garrigós;A. Seeger;T. Ullrich
We show that, for suitable enumerations, the Haar system is a Schauder basis in the classical Sobolev spaces inwith integrabilityand smoothness. This complements earlier work by the last two authors on the unconditionality of the Haar system and implies that it is a conditional Schauder basis for a nonempty open subset of the (1 /p,s)-diagram. The results extend to (quasi-)Banach spaces of Hardy–Sobolev and Triebel–Lizorkin type in the range of parametersand max { d ( 1 / p - 1 ) , 1 / p - 1 } < s < min { 1 , 1 / p } , which is optimal except perhaps at the end-points.