RIEMANN HYPOTHESIS ANALOGUE FOR LOCALLY FINITE MODULES OVER THE ABSOLUTE GALOIS GROUP OF A FINITE FIELD

 Title RIEMANN HYPOTHESIS ANALOGUE FOR LOCALLY FINITE MODULES OVER THE ABSOLUTE GALOIS GROUP OF A FINITE FIELD Publication Type Journal Article Year of Publication 2017 Authors Kasparian A, Marinov I Journal Annuaire de l’Université de Sofia “St. Kliment Ohridski”. Faculté de Mathématiques et Informatique Volume 104 Pagination 99-137 ISSN 0205-0808 Keywords $\zeta$-function of a locally finite $\mathfrak{G}$-module; Riemann Hypothesis Analogue with respect to the projective line; finite unramified coverings of locally finite $\mathfrak{G}$-modules with Galois closure. Abstract The article provides a sufficient condition for a locally finite module $M$ over the absolute Galois group $\mathfrak{G} = Gal(\overline{\mathbb{F}_q}/\mathbb{F}_q)$ of a finite field $\mathbb{F}_q$ to satisfy the Riemann Hypothesis Analogue with respect to the projective line $\mathbb{P}^1(\overline{\mathbb{F}_q})$. The condition holds for all smooth irreducible projective curves of positive genus, defined over $\mathbb{F}_q$. We give an explicit example of a locally finite module, subject to the assumptions of our main theorem and, therefore, satisfying the Riemann Hypothesis Analogue with respect to $\mathbb{P}^1(\overline{\mathbb{F}_q})$, which is not isomorphic to a smooth irreducible projective curve, defined over $\mathbb{F}_q$. 2000 MSC 14G15, 94B27, 11M38
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