Topological graded ideal zeta function at infinity conjecture

Assume the uniformity conjecture, so that the reduced graded ideal zeta function ζfc,d,redgr(Y)\zeta_{\mathfrak{f}_{c,d},\operatorname{red}}^{\triangleleft_{\operatorname{gr}}}(Y) is defined. Let r=rkZ(fc,d)r=\operatorname{rk}_{\mathbb{Z}}(\mathfrak{f}_{c,d}). Topological-at-infinity conjecture.

srζfc,d,topgr(s1)s=0=(1Y)rζfc,d,redgr(Y)Y=1Q>0.\left.s^{-r}\zeta_{\mathfrak{f}_{c,d},\operatorname{top}}^{\triangleleft_{\operatorname{gr}}}(s^{-1})\right|_{s=0}=\left.(1-Y)^r\zeta_{\mathfrak{f}_{c,d},\operatorname{red}}^{\triangleleft_{\operatorname{gr}}}(Y)\right|_{Y=1}\in\mathbb{Q}_{>0}.

The source explicitly singles out this conjecture as unresolved for c=2c=2 and d5d\geq5; it has relevant special-case confirmations.

Sources & referencesView supporting material

Primary source

Seungjai Lee and Christopher Voll, “Enumerating graded ideals in graded rings associated to free nilpotent Lie rings”, arXiv:1606.04515 (2016).

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