缅北强奸

Title: Nodal sets and negative eigenvalues in conformal geometry

Abstract: We discuss conformal invariants that arise from

eigenfunctions with eigenvalue 0 of the conformal Laplacian

(and other conformally covariant operators). We also discuss

some results about negative eigenvalues of the conformal Laplacian,

as well as some generalizations for manifolds with boundary

and discrete Laplacians (as time permits)