2 problems

Let $\overline{\mathcal{M}}_{g,n}$ be the moduli space of stable curves, and let $H^{11}(\overline{\mathcal{M}}_{1,11})$ and $H^{15}(\overline{\mathcal{M}}_{g,n})$ denote their coh…

Parity-homogeneity conjecture. Every relation between alternating multiple $t$-values is homogeneous in $r$ modulo $2$; equivalently, terms involving an even number of negative sig…