All-codimension cohomological Kudla conjecture for unitary Shimura varieties

Let $\mathrm{U}(n+1,1)$ be the unitary group considered in the paper, and let $g$ denote the codimension of the special cycles. The paper's main completion and explicit-form statements concern corrected generating series and their modularity, with values in Chow groups. Cohomological Kudla conjecture in all codimensions. The statements of the paper's main completion result and main explicit-form result still hold for $\mathrm{U}(n+1,1)$, with values in the Chow groups of all codimensions. This extends the paper's theorems beyond the proven range where $g<(n+1)/2$; the source explains that this restriction is an artifact of the proof and that the required Splitting Lemma is not known in general.