Mumford--Morita--Miller classes in generalised cohomology theories

Published 1 Oct 2026 in math.AT and math.AG | (2610.01888v1)

Abstract: The Mumford--Morita--Miller classes on the moduli space of Riemann surfaces may be defined not only in ordinary cohomology but in any complex-oriented cohomology theory. We begin their investigation, emphasising the new phenomena that arise.

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Oscar Randal-Williams

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