Abstract：We prove two main theorems about equivariant minimal surfaces in an arbitrary nonpositively curved symmetric spaces extending classical results on minimal surfaces in Euclidean space. First, we show that a complete equivariant branched immersed minimal surface in a nonpositively curved symmetric space of finite total curvature must be of finite Morse index. It is a generalization of t...
OrganizerLong Jin 金龙SpeakerGong Yulin (University of Bristol)TimeThursday, 15:30-17:00Dec. 18, 2025VenueB541Shuangqing Complex Building AObservability and Semiclassical Control for Schrödinger Equations on Non-compact Covering Spaces of Compact Hyperbolic Surfaces In this talk, we study the observability of the Schrödinger equation on $X$, a non-compact covering space of a compact hyperbolic ...
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