Nonsmoothable actions of Z2×Z2 on Spin four-manifolds
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DOI: 10.1016/j.topol.2021.107868
Abstract: We construct some nonsmoothable actions of Z2 * Z2 on spin four-manifolds by using an equivariant version of Furuta' s 10/8inequality. The examples satisfy following property: any proper subgroup of Z2 * Z2 is smoothable… read more here.
Keywords: actions spin; four manifolds; topology; nonsmoothable actions ... See more keywords