A Hodge-Tate decomposition with rigid analytic coefficients

Let $X$ be a smooth proper rigid analytic space over a complete algebraically closed field extension $K$ of ${\mathbb{Q}}_p$. We establish a Hodge–Tate decomposition for $X$ with $G$-coefficients, where $G$ is any commutative locally $p$-divisible rigid group. This generalizes the Hodge–Tate decomposition of Faltings and Scholze, which is the case $G={\mathbb{G}}_a$. For this, we introduce geometric analogs of the Hodge–Tate spectral sequence with general locally $p$-divisible coefficients. We prove that these spectral sequences degenerate at $E_2$. Our results apply more generally to a class of smooth families of commutative adic groups over $X$ and in the relative setting of smooth proper morphisms $X\to S$ of smooth rigid spaces. We deduce applications to analytic Brauer groups and the geometric $p$-adic Simpson correspondence.