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math.NT2026
Norm-trace and Kloosterman sums in finite semi-simple algebras
Daqing Wan
An asymptotic formula with a square root error term is obtained for the number of elements with given trace and norm in a finite semisimple algebra over a finite field. This extend…
math.NT2025
Lang--Trotter Conjecture for CM Elliptic Curves
Daqing Wan, Ping Xi
Given an elliptic curve over and non-zero integer , the Lang--Trotter conjecture predicts a striking asymptotic formula for the number of good primes $p\leqslan…