Abstract
Let μ be an Ahlfors-David probability measure on ℝq; therefore, there exist some constants s0 > 0 and ϵ0, C1, C2 > 0 such that \({C_1}{\varepsilon ^{s_0}} \leqslant \mu \left( {B\left( {x,\varepsilon } \right)} \right) \leqslant {C_2}{\varepsilon ^{s_0}}\) for all ϵ ∈ (0, ϵ0) and x ∈ supp(μ). For n ⩾ 1, let αn be an n-optimal set for μ of order r; furthermore, let \(\left\{ {{P_a}\left( {{\alpha _n}} \right)} \right\}_{a \in {\alpha _n}}\) be an arbitrary Voronoi partition with respect to αn. The n-th quantization error en,r(μ) for μ of order r can be defined as ern,r (μ):= ∫ d(x,αn)rdμ(x). We define \({I_a}\left( {{\alpha _n},\mu } \right):={\smallint _{{P_a}\left( {{\alpha _n}} \right)}}d{\left( {x,{\alpha _n}} \right)^r}d\mu \left( x \right)\), α ∈ αn, and prove that, the three quantities
are of the same order as that of \(\frac{1} {n}e_{n,r}^r\left( \mu \right)\). Thus, our result exhibits that, a weak version of Gersho’s conjecture holds true for the Ahlfors-David probability measures on ℝq.
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This work was supported by National Natural Science Foundation of China (Grant No. 11571144).
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Zhu, S. Asymptotic uniformity of the quantization error for the Ahlfors-David probability measures. Sci. China Math. 63, 1039–1056 (2020). https://doi.org/10.1007/s11425-017-9436-4
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DOI: https://doi.org/10.1007/s11425-017-9436-4
Keywords
- quantization error
- Ahlfors-David probability measure
- optimal set
- Voronoi partition
- asymptotic uniformity