2 problems

Self-correcting sequence conjecture. Such self-correcting sequences can be constructed with any approximations to a set of generators of a unitary irreducible representation.

Let $t\in\mathbb{N}^*$, let $S^3\subset\mathbb{R}^4$ be the unit $3$-sphere, and let $\nu(5^t)$ denote the integer solutions of … For $x\in\nu(5^t)\cup\nu(5^{t-1})$, write…