On tropical cycle class maps

Abstract: In this paper, we show that tropical cycle class maps introduced by Liu for smooth algebraic varieties over trivially valued fields are isomorphisms. More precisely, we prove that tropical cohomology is isomorphic to Zariski sheaf cohomology of the sheaves of tropical analogs of Milnor $K$-groups. Proof is based on a theorem on "cohomology theories", developed by many mathematicians, and explicit computation of tropical cohomology of $\mathbb{A}^1$-fibers by non-archimedean geometry.