3 papers
hep-th2025
A Picard rank bound for base surfaces of elliptic Calabi-Yau 3-folds
Caucher Birkar, Seung-Joo Lee
We compute an explicit rank bound on the Picard group of the compact surfaces, which can serve as the base of an elliptic Calabi-Yau variety with canonical singularities. To bound…
hep-th2025
Explicit Bounds on the Spectrum of 6d N=(1,0) Supergravity
Caucher Birkar, Seung-Joo Lee
We propose a novel strategy to derive explicit and uniform upper bounds on the particle spectrum of six-dimensional gravitational theories with minimal supersymmetry, focusing init…
hep-th2025
Approximate Ricci-flat Metrics for Calabi-Yau Manifolds
Seung-Joo Lee, Andre Lukas
We outline a method to determine analytic Kähler potentials with associated approximately Ricci-flat Kähler metrics on Calabi-Yau manifolds. Key ingredients are numerically calcu…