On Hirzebruch invariants of elliptic fibrations

We compute all Hirzebruch invariants $χ_q$ for $D_5$, $E_6$, $E_7$ and $E_8$ elliptic fibrations of every dimension. A single generating series $χ(t,y)$ is produced for each family of fibrations such that the coefficient of $t^{k}y^{q}$ encodes $χ_q$ over a base of dimension $k$, solely in terms of invariants of the base of the fibration.

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