Zeta Functions for Elliptic Curves I. Counting Bundles

Details Zeta Functions for Elliptic Curves I. Counting Bundles Zeta Functions for Elliptic Curves I. Counting Bundles

2012-02-04

arxiv.org/abs/1202.0870v1

Mathematics

Algebraic Geometry

Scientific paper

To count bundles on curves, we study zetas of elliptic curves and their zeros. There are two types, i.e., the pure non-abelian zetas defined using moduli spaces of semi-stable bundles, and the group zetas defined for special linear groups. In lower ranks, we show that these two types of zetas coincide and satisfy the Riemann Hypothesis. For general cases, exposed is an intrinsic relation on automorphism groups of semi-stable bundles over elliptic curves, the so-called counting miracle. All this, together with Harder-Narasimhan, Desale-Ramanan and Zagier's result, gives an effective way to count semi-stable bundles on elliptic curves not only in terms of automorphism groups but more essentially in terms of their $h^0$'s. Distributions of zeros of high rank zetas are also discussed.

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