Loeser's generalized monodromy conjecture for multivariable zeta functions

Let KK be a number field, let XX be a smooth algebraic variety over KK, and let F=(f1,,fr):XAKrF=(f_1,\ldots,f_r):X\to\mathbb{A}^r_K. For almost all finite places P\mathfrak P, let FPF_{\mathfrak P} be the induced analytic map and let Zϕ(FP,χ;s)Z_\phi(F_{\mathfrak P},\chi;s) be its multivariable Igusa zeta function, with ϕ\phi residual. Fix an identification QlC\overline{\mathbb{Q}}_l\simeq\mathbb{C}. For an affine hyperplane HH with equation jNjsj+ν=0\sum_jN^js_j+\nu=0, define H\mathcal H as the Zariski closure of the corresponding finite-order characters. Let AF,ξq(Ql)\mathcal A^q_{F,\xi}(\overline{\mathbb{Q}}_l) denote the relevant support associated with nearby-cycle data at a geometric point ξ\xi.

Loeser's generalized monodromy conjecture. For almost all finite places P\mathfrak P, if HH is a polar hyperplane in P(Zϕ(FP,χ;s))\mathcal P(Z_\phi(F_{\mathfrak P},\chi;s)), with ϕ\phi residual on XPX_{\mathfrak P}, then, for every irreducible component ZZ of H\mathcal H, there exists an integer qq and a geometric point ξ\xi such that ZZ is contained in the support of AF,ξq(Ql)\mathcal A^q_{F,\xi}(\overline{\mathbb{Q}}_l).

This generalizes the one-variable monodromy conjecture by relating every component arising from a polar hyperplane to the support of multivariable nearby-cycle data. The supplied source does not state whether the conjecture is open, proved, or refuted.

Sources & referencesView supporting material

Primary source

Johannes Nicaise, “Zeta functions and Alexander modules”, arXiv:math/0404212 (2004).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.