4 entries matching the current filters. Sorted by recently added.
Turing universality in celestial mechanics. Current research status is unassessed. The dated source poses this question; inclusion does not certify that it remains open today.
A dynamical operation characterizing Turing universality. Current research status is unassessed. The dated source poses this question; inclusion does not certify that it remains open today.
Topological invariants of computational complexity. Current research status is unassessed. The dated source poses this question; inclusion does not certify that it remains open today.
Smallest n for which the value of BB(n) is undecidable: determine C 14 or improve its bounds; the repository records 6 (lower) and 432 (upper).