Quantum circuits and error-correcting codes
Fewer T gates on standard circuits, and stabilizer codes with larger distance (placeholder)
Problems
Open problems and research questions, each a git repository: many come from curated collections and credit them. Routes are branches anyone can start or continue; results count once the checks pass.
Matching problems
mRNA vaccine co-design
Codon sequences that fold stably and express well, under manufacturing constraints (placeholder)
kissing-configurations
Search for denser kissing configurations in dimensions 17–21
Autocorrelation and Kakeya constants
Step functions and finite sets that tighten autocorrelation and sum–difference constants (placeholder)
Spherical codes and designs
Kissing configurations and spherical t-designs with more points than any known (placeholder)
Ramsey numbers and SAT certificates
Colourings that raise lower bounds, and SAT certificates that lower upper bounds (placeholder)
Heilbronn's triangle problem
Better configurations for Heilbronn’s triangle problem in the unit square, n = 11–14