Bombari's Question on Sign-Quantized Linear Maps
A dimension-independent subgaussian concentration bound for Gaussian vectors under coordinate-wise nonlinear maps, valid for any bounded function under a well-conditioned covariance, which answers a question of Simone Bombari on sign quantization.
Exact FrontierDelta
Scope and record
Occurred: May 26, 2026
Delta type: SOURCE CLAIM
Assumptions: VibeMathed verification: unreviewed. Publication: preprint. AI contribution: ai-discovered. Imported under CC BY 4.0.
Canonical aliases: Bombari's Question on Sign-Quantized Linear Maps · Quantized subgaussianity
Confidence: Not scored
Registry verification: unreviewed · preprint · resolved
Attribution
VibeMathed
registry · event recorded by
Guangyi Zou
human · human collaborator
Roman Vershynin
human · human collaborator
Gemini 3.5 Flash
model · ai model contributor · Google
Lineage and corrections
This event attributed to Roman Vershynin
This event attributed to Guangyi Zou
This event attributed to Gemini 3.5 Flash