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The Buckley Dyadic Square Function

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Recent Advances in Harmonic Analysis and Applications

Part of the book series: Springer Proceedings in Mathematics & Statistics ((PROMS,volume 25))

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Abstract

We explore the relationships and differences between the “standard” dyadic square function S(f) and a pointwise smaller square function S b (f) due to Stephen Buckley. In dimension one, S(f)=S b (f), but in higher dimensions, S b (f) can vanish on a cube in which S(f) is everywhere positive, and uniform boundedness of S b (f) does not imply the same of S(f). However, uniform boundedness of S b (f) implies local exponential-square integrability of both S(f) and f. The second implication is surprising because the result of [2] requires S(f)∈L to infer that f is in the local exponential L 2 class.

AMS Subject Classification (2000): 42B25.

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References

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Correspondence to Michael Wilson .

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Nazarov, F., Wilson, M. (2012). The Buckley Dyadic Square Function. In: Bilyk, D., De Carli, L., Petukhov, A., Stokolos, A., Wick, B. (eds) Recent Advances in Harmonic Analysis and Applications. Springer Proceedings in Mathematics & Statistics, vol 25. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4565-4_23

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