Conjecture on the number of zeta-function zeros in strips for hyperbolic rational maps

Let ff be a hyperbolic rational map, let Z(s)Z(s) denote its dynamical zeta function, let \\{\mu_j\} be the zeros of ZZ counted with multiplicity, and let δ\delta be the dimension of the Julia set. Zero-counting conjecture. There exists ϵ0>0\epsilon_0>0 such that for all 0<ϵ<ϵ00<\epsilon<\epsilon_0, there exists 0<Cϵ<0<C_\epsilon<\infty such that

#{μj:Imμjr, ϵ1<Reμj<δ}Cϵ1r1+δ.\#\left\{\mu_j: |\operatorname{Im}\mu_j|\le r,\ -\epsilon^{-1}<\operatorname{Re}\mu_j<\delta\right\}\ge C_\epsilon^{-1}r^{1+\delta}.

The conjecture predicts that the lower bound for zeros in strips has the same order as the known upper bound, improving the previously established Ω(r1ϵ)\Omega(r^{1-\epsilon}) lower bound. Its status is not resolved in the supplied source context.

Sources & referencesView supporting material

Primary source

Hans Christianson, “Growth and Zeros of the Zeta Function for Hyperbolic Rational Maps”, arXiv:math/0404543 (2004).

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