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The eta invariant of a circle bundle on a Fano manifold

· 2026 · math.DG · arXiv 2604.07556

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abstract

We consider the spin-c Dirac operator on the unit circle bundle of a positive line bundle over a Fano manifold of even complex dimension. We compute the corresponding eta invariant in terms of Zhang's value of its adiabatic limit. This extends the earlier computation of the author from small to arbitrary values of the adiabatic parameter.

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hep-th 1

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2026 1

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Quiver Approach to Symmetry Theories

hep-th · 2026-05-28 · unverdicted · novelty 6.0

An algebraic method using the path algebra of quivers extracts symmetry anomaly data for 5D SCFTs engineered from M-theory on Calabi-Yau cones.

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  • Quiver Approach to Symmetry Theories hep-th · 2026-05-28 · unverdicted · none · ref 78 · internal anchor

    An algebraic method using the path algebra of quivers extracts symmetry anomaly data for 5D SCFTs engineered from M-theory on Calabi-Yau cones.