3 papers
math.NT2026
Pointless K3 surfaces over finite fields
Asher Auel, Philip Engel, Kiran S. Kedlaya +1
We prove that K3 surfaces with no rational points over the finite field with elements exist if and only if . Our approach applies linear programming techniques to im…
cs.LG2026
A Sharper Picture of Generalization in Transformers
Paul Lintilhac, Sair Shaikh
We study transformers' generalization behavior on boolean domains from the perspective of the Fourier spectra of their target functions. In contrast to prior work (Edelman et al.,…
math.CO2025
Strata of toric hyperplane arrangements, zonotope lattice points, and the Bondal-Thomsen collection
Friedrich Bauermeister, Andrew Hanlon, Davis Painter +2
We show that strata of oriented toric hyperplane arrangements are in bijection with a collection of lattice points in a zonotope. Moreover, we relate the dimension of the stratum a…