2 problems

Let $W=(W_1,W_2,\ldots)$ be a sequence of representations, with $W_i$ an $\operatorname{SL}_{n_i}$-representation of dimension $N_i$. An arithmetic circuit succinctly encodes the g…

For $k,m,t\in\mathbb{N}$, let $\mathrm{SPS}(k,m,t)$ denote the class of polynomials represented as sums of $k$ products of $m$ integer polynomials, each having at most $t$ nonzero…