When $t$ is a uniformizer of the integral de Rham period ring, $B_{dR}^+$, there is an isomorphism $t^{k-1}B_{dR}^+/t^{k}B_{dR}^+\cong \mathbb{C}_p(k-1)$. Is there a nice description for $t^{k-1}B_{cr}^+/t^kB_{cr}^+$?
2026-03-26 16:26:25.1774542385
A nice description for $t^{k-1}B_{cr}^+/t^kB_{cr}^+$?
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