Dirac eigenvalue-sum conjecture for genus-one surfaces in the three-sphere

Let M2S3(1)M^{2}\subset\mathbb{S}^{3}(1) be an embedded closed surface of genus one, and suppose that the curvature endomorphism satisfies \slashedE=0\Re|_{\slashed{E}}=0. Let Γˉ1\bar{\Gamma}_{1} and Γˉ2\bar{\Gamma}_{2} be the first two nonzero eigenvalues of \slashedD2\slashed{D}^{2} on C(\slashedE)C^{\infty}(\slashed{E}). Dirac eigenvalue-sum conjecture.

12i=12Γˉi4π2area(M2).\frac{1}{2}\sum_{i=1}^{2}\bar{\Gamma}_{i}\geq\frac{4\pi^{2}}{\operatorname{area}(M^{2})}.

This proposed lower bound is closely related to the Willmore conjecture through the geometry of embedded genus-one surfaces in S3(1)\mathbb{S}^{3}(1). The supplied source does not state whether it has been resolved.

Sources & referencesView supporting material

Primary source

Lingzhong Zeng, “Spectrum of the Dirac operator on Compact Riemannian Manifolds”, arXiv:2402.14247 (2024).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.