7 citations · 8 across the 3 of their papers we have counts for
4 papers
math.NT2025
On quadratic character sums over quartics
Bogdan Nica
We obtain transformation formulas for quadratic character sums with quartic and cubic polynomial arguments.
math.NT2025
Variance of point-counts for families of cubic curves over and Jacobsthal sums
Bogdan Nica
We give explicit computations for the variance of the number of points along one-parameter families of cubic curves. We highlight evaluations of variances that involve Jacobsthal s…
math.OA2012★ 1 cited
Finitely summable Fredholm modules for boundary actions of hyperbolic groups
Heath Emerson, Bogdan Nica
We construct a family of odd, finitely summable Fredholm modules over the crossed product C*-algebra $C(\bd \G)\rtimes \G$ associated to the action of a non-elementary hyperbolic g…
math.GR2008★ 7 cited
Group actions on median spaces
Bogdan Nica
We investigate the geometry of median metric spaces. The group-theoretic applications are towards Kazhdan's property (T) and Haagerup's property.