Computing nonsurjective primes associated to Galois representations of genus $2$ curves

Barinder S. Banwait, Armand Brumer, Hyun Jong Kim +4

For a genus $2$ curve $C$ over $\mathbb{Q}$ whose Jacobian $A$ admits only trivial geometric endomorphisms, Serre's open image theorem for abelian surfaces asserts that there are o…