Linear independence of Parseval wavelets

Linear independence of Parseval wavelets
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Parseval 小波的线性无关性

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发表时间:
2010
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通讯作者:
D. Speegle
D. Speegle
中科院分区:
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作者:
Marcin Bownik;D. Speegle

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我们建立了由ψ产生的仿射系统的线性无关的几个结果,以交换负膨胀空间V (ψ)上的条件。产生线性无关的一个典型假设是空间V (ψ)是移位不变的。特别是,由Parseval小波产生的仿射系统是线性无关的。为了说明我们的技术,我们给出了Linnell定理的另一种证明(见Proc. Amer)。数学。社会科学学报。127(1999),3269-3277)关于Gabor系统的线性独立性。
We establish several results yielding linear independence of the affine system generated by ψ in exchange for conditions on the space V (ψ) of negative dilates. A typical assumption yielding linear independence is that the space V (ψ) is shiftinvariant. In particular, the affine system generated by a Parseval wavelet is linearly independent. As an illustration of our techniques, we give an alternative proof of the theorem of Linnell (see Proc. Amer. Math. Soc. 127 (1999), 3269–3277) on linear independence of Gabor systems.