Counterexamples to a Conjecture of Ahmadi and Shparlinski
Counterexamples to a Conjecture of Ahmadi and Shparlinski
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.