Unverified
2026
Hardy barrier for lattice feature fields
Treat a spatial feature map or lattice-indexed embedding as a function on a d-dimensional discrete grid and penalize excessive concentration near a chosen anchor using the inverse-radial Hardy weight. Calibrate the penalty with the theorem's high-dimensional scaling 2^ell d^ell instead of selecting an arbitrary spatial L2 coefficient.
Paper: Sharp asymptotics for higher-order Hardy constants on lattices
arXiv:2607.15181