Submanifold Geometry, Lie Group Action and Its Applications to Theoretical Physics 2026

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Registration information will be announced later.

• Jaigyoung Choe (Korea Institute for Advanced Study (KIAS), Korea)
• Keomkyo Seo (Sookmyung Women's University, Korea)

November 21 (Saturday)

• 9:55 - 10:00 Opening Ceremony
• 10:00 - 11:00
  
• 11:15 - 12:15
  

Photo and Lunch

• 14:00 - 15:00
  
• 15:15 - 16:15
  
• 16:30 - 17:30
  

November 22 (Sunday)

• 9:50 - 10:50
  
• 11:00 - 12:00
  

Lunch

• 13:50 - 14:50
  
• 15:00 - 16:00
  
• 16:10 - 17:10
  

Banquet: 18:30-

November 23 (Monday)

• 10:00 - 11:00
  
• 11:15 - 12:15
  

Photo

Keomkyo Seo (Sookmyung Women's University, Korea)
Title: Rigidity Results for Steklov-Type Problems on Riemannian Manifolds
Abstract: We study sharp lower bounds for first eigenvalues of Steklov-type problems on compact Riemannian surfaces with smooth boundary. Under natural lower curvature assumptions on the Gaussian curvature of the surface and the geodesic curvature of the boundary, we obtain optimal eigenvalue estimates and characterize the equality case by the Euclidean disk. We also consider Serrin-type overdetermined boundary value problems related to Steklov eigenvalues. We present symmetry and rigidity results for overdetermined Steklov problems on domains in Riemannian manifolds with nonnegative Ricci curvature.