Higher-derivative local Fock-space contraction conjecture

Let Fα2\mathcal{F}_\alpha^2 be the Fock space, let f(n)f^{(n)} denote the nnth derivative of ff, let μn,α\mu_{n,\alpha} be the measure used to define the weighted derivative norm, and let Ω\Omega be a domain of finite measure Ω|\Omega|. For an integer n0n\geqslant 0, the higher-derivative local contraction conjecture. For every fFα2f\in\mathcal{F}_\alpha^2,

Ωf(n)(z)2dμn,α(z)(1e(n+1)Ω)f2,α2.\int_{\Omega} {|f^{(n)}(z)|^2}d\mu_{n,\alpha}(z) \le (1-e^{-(n+1)|\Omega|})\|f\|^2_{2,\alpha}.

This extends the known n=0n=0 result of Nicola and Tilli to higher derivatives; the paper presents it as a conjecture and reduces it to further conjectures concerning the global derivative norm and Laguerre-polynomial coefficients.

Sources & referencesView supporting material

Primary source

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

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