Dr. Zhiqin Lu, UC Irvine
Abstract: In this talk, we present the proof of the following theorem: let M be a complete non-compact Riemannian manifold whose curvature goes to zero at infinity, then its essential spectrum of the Laplacian on differential forms is a connected set. In particular, we study the case of form spectrum when…
Spatial Ecology & Singularly Perturbed Reaction-Diffusion Equations
Prof. Arjen Doelman, Mathematisch Instituut, Lorentz Center; Leiden University, The Netherlands
Abstract: Pattern formation in ecological systems is driven by counteracting feedback mechanisms on widely different spatial scales. Moreover, ecosystem models…