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Higher-rank zeta functions for elliptic curves
Lin Weng1, Don Zagier2,3
1Graduate School of Mathematics, Kyushu University, 819-0395 Fukuoka, Japan; dbz@mpim-bonn.mpg.de weng@math.kyushu-u.ac.jp.
This study proves the Riemann hypothesis for nonabelian zeta functions on genus 1 curves over finite fields. The research connects Dirichlet series of vector bundles to these zeta functions, confirming a key conjecture.
Area of Science:
- Number Theory
- Algebraic Geometry
Background:
- Introduced nonabelian zeta functions for smooth curves over finite fields.
- These functions generalize Artin zeta functions and are conjectured to satisfy the Riemann hypothesis.
Purpose of the Study:
- To investigate nonabelian zeta functions for genus 1 curves.
- To prove the Riemann hypothesis for these functions in a specific case.
Main Methods:
- Defined a Dirichlet series summing over semistable vector bundles of degree 0.
- Established equality between this Dirichlet series and the nonabelian zeta function for genus 1 curves.
Main Results:
- Demonstrated that the Dirichlet series for genus 1 curves equals a specific rational function.
- Proved the Riemann hypothesis for the nonabelian zeta function for all ranks n on genus 1 curves.
Conclusions:
- The Riemann hypothesis holds for nonabelian zeta functions on genus 1 curves over finite fields.
- This work provides a significant step towards understanding these functions in algebraic geometry.
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