Abstract
Ahmadi-Shparlinski conjectured that every ordinary, geometrically simple Jacobian over a finite field has maximal angle rank. Using the L-Functions and Modular Forms Database, we provide two counterexamples to this conjecture in dimension 4.
Acknowledgments
We thank the referee for helpful suggestions, including pointing out the reference [Citation8].
Declaration of Interest
No potential conflict of interest was reported by the author(s).