Global derivative contraction conjecture for Fock space

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Let Fα2\mathcal{F}_\alpha^2 be the Fock space, let f(n)f^{(n)} denote the nnth derivative of ff, and let μn,α\mu_{n,\alpha} be the measure used in the weighted derivative norm. For n⩾0n\geqslant 0, define

∥f(n)∥2,n,α2:=∫C∣f(n)(z)∣2dμn,α(z).\|f^{(n)}\|^2_{2,n,\alpha}:=\int_{\mathbb{C}} {|f^{(n)}(z)|^2}d\mu_{n,\alpha}(z).

The global derivative contraction conjecture. For every f∈Fα2f\in\mathcal{F}_\alpha^2,

∥f(n)∥2,n,α2≤∥f∥2,α2.\|f^{(n)}\|^2_{2,n,\alpha}\le \|f\|^2_{2,\alpha}.

The paper states this as a reduction of the preceding local inequality conjecture. Its resolution is not given in the supplied text.

References

Primary source

David Kalaj, “Contraction property of differential operator on Fock space”, arXiv:2207.13606 (2022).

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