Local zeta factors and geometries under Spec Z
arXiv:1407.4969
Abstract
The first part of this note shows that the odd period polynomial of each Hecke cusp eigenform for full modular group produces via Rodriguez--Villegas transform ([Ro--V]) a polynomial satisfying the functional equation of zeta type and having nontrivial zeros only on the middle line of its critical strip. The second part discusses Chebyshev lambda--structure of the polynomial ring as Borger's descent data to and suggests its role in possible relation of --factor to "real geometry over " (cf. also [CoCons2]).
9 pages