Hyper-Mahler measures via Goncharov-Deligne cyclotomy

The hyper-Mahler measures $m_k(1+x_1+x_2),k\in {\mathbb{Z}}_{>1}$ and $m_k(1+x_1+x_2+x_3),k\in {\mathbb{Z}}_{>1}$ are evaluated in closed form via Goncharov-Deligne periods, namely $\mathbb{Q}$-linear combinations of multiple polylogarithms at cyclotomic points (complex-valued coordinates that are roots of unity). Some infinite series related to these hyper-Mahler measures are also explicitly represented as Goncharov-Deligne periods of levels $1$, $2$, $3$, $4$, $6$, $8$, $10$ and $12$.