2 problems

Let $M$ be a CR manifold with a pseudo-Einstein contact form, and let a pseudo-hermitian invariant be defined for such contact forms. Suppose that its integral gives a global secon…

Let $MString_*$ denote string bordism, let $tmf_*$ denote the homotopy groups of topological modular forms, and let $\sigma:MString_*\to tmf_*$ be the $tmf$-valued Witten genus. Su…