Sparse form domination implies worse sparse form domination
Sparse form domination implies worse sparse form domination
Let , , and . Let be an operator defined on -tuples of functions. Suppose that, for any and some function , there exists a sparse collection such that
Sparse form domination conjecture. The same estimate should also hold after replacing by any .
This conjecture asks whether sparse domination in form at exponent automatically yields the corresponding, quantitatively weaker, sparse form estimates at all smaller exponents. The text notes that such replacement would give qualitatively the same weighted bounds, but with a worse exponent; whether the needed flexibility follows automatically is unknown.
Sources & referencesView supporting material
Primary source
Emiel Lorist and Zoe Nieraeth, “Sparse domination implies vector-valued sparse domination”, arXiv:2003.02233 (2021).
Additional references
3 papers in this index state this conjecture (2016–2020). The statement above is taken from the most recent of them; the others are arXiv:1609.06364, arXiv:1601.03193.
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