Tautological rings of fake quaternionic spaces

Nils Prigge

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arXiv · 2304.13825

Tautological rings of fake quaternionic spaces

Nils Prigge

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Abstract

The tautological ring $R^*(M)$ of a smooth manifold $M$ is the ring of characteristic classes generated by the Miller-Morita-Mumford classes, and is often more accessible than the ring of all characteristic classes of smooth $M$-bundles. In this paper, we show that the Krull dimension of the tautological ring vanishes for almost all manifolds homotopy equivalent to $\mathbb{H} P^2$ through a combination of new methods in rational homotopy theory developed by Alexander Berglund and the family signature theorem.

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Nils Prigge. 2023-04-26. Tautological rings of fake quaternionic spaces. https://arxiv.org/abs/2304.13825

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