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math.DG2023
Moduli Spaces of Positive Curvature Metrics in Dimension Four and Beyond
Thorsten Hertl
We construct non-trivial elements in the homotopy groups of the observer moduli space of positive sectional curvature metrics on and non-trivial elements in the hom…
math.GT2023
Concordances in Positive Scalar Curvature and Index Theory
Thorsten Hertl
We apply the strategy to study of diffeomorphisms via block diffeomorphisms to the world of positive scalar curvature (psc) metrics. For each closed psc manifold , we construct…