Variation of Néron-Severi Ranks of Reductions of K3 Surfaces. - Edgar Costa; Yuri Tschinkel (Exp. Math., 2014)

A search for Wilson primes. - Edgar Costa; Robert Gerbicz; David Harvey (Math. Comput., 2014)

Faster deterministic integer factorization. - Edgar Costa; David Harvey (Math. Comput., 2014)

Rigorous computation of the endomorphism ring of a Jacobian. - Edgar Costa; Nicolas Mascot; Jeroen Sijsling; John Voight (Math. Comput., 2019)

Learning Fricke signs from Maass form Coefficients. - Joanna Bieri; Giorgi Butbaia; Edgar Costa; Alyson Deines; Kyu-Hwan Lee; David Lowry-Duda; Thomas Oliver; Yidi Qi; Tamara Veenstra (CoRR, 2025)

Learning Euler Factors of Elliptic Curves. - Angelica Babei; François Charton; Edgar Costa; Xiaoyu Huang; Kyu-Hwan Lee; David Lowry-Duda; Ashvni Narayanan; Alexey Pozdnyakov (CoRR, 2025)