3 papers
math.CO2025
On -avoiding spherical codes and designs in
P. Boyvalenkov, D. Cherkashin, P. Dragnev +2
In this article, we show that the minimal vectors of the extremal even unimodular lattices in are -avoiding universally optimal for suitable sets . Moreover…
math.CO2024
Energy of codes with forbidden distances in 48 dimensions
P. Boyvalenkov, P. Dragnev
We prove the universal optimality of four remarkable spherical 11-designs in 48 dimensions either among all antipodal codes, or all spherical 3-designs, whose inner-products avoid…
math.MG2024
Bounds on energy and potentials of discrete measures on the sphere
S. Borodachov, P. Boyvalenkov, P. Dragnev +3
We establish upper and lower universal bounds for potentials of weighted designs on the sphere that depend only on quadrature nodes and weights derived from the…