Translation and dilation invariant subspaces of L2 (R).
Translation and dilation invariant subspaces of L2 (R).
复制标题
L2 (R) 的平移和膨胀不变子空间。
DOI:
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发表时间:
2002
期刊:
影响因子:
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通讯作者:
S. Power
中科院分区:
文献类型:
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作者:
A. Katavolos;S. Power
The closed subspaces of the Hilbert space L2ðRÞ which are invariant under multiplication by HyðRÞ functions and the dilation operators f ðxÞ ! f ðsxÞ, 1 < s < y, are determined as the two parameter family of subspaces L2½a; b, 0ea, bey, which are reducing for multiplication operators, together with a four parameter family of nonreducing subspaces. The lattice and topological structure are determined and using operator algebra methods the corresponding family of orthogonal projections, with the weak operator topology, is identified as a compact connected 4-manifold.