Seminarium
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KASS-seminarium

Johannes Scheffler, Bayreuth: Auxiliary Hessian Equations

Översikt

Evenemanget har passerat
8 maj 2026, 11:008 maj 2026, 11:45
MV:L14, Chalmers tvärgata 3
Språk:Engelska

Abstrakt finns enbart på engelska: Using Monge-Ampère equations to obtain auxiliary functions, Guo-Phong-Tong proved $L^\infty$ esimates for Monge-Ampère and Hessian equations on compact Kähler manifolds. These estimates are uniform in a bounded subset of the Kähler cone, provided certain cohomological constants - involving the volume - are bounded. This makes the estimates especially useful for dealing with degenerations to big and nef classes. However, if the limiting class is only nef and of numerical dimension $1<k<n$, the cohomological constant is not under control. In this case, we propose to adapt the technique using auxiliary Hessian equations. I will explain the modifications needed and some proof-of-concept results.

Lars Martin Sektnan

  • Enhetschef, Algebra och geometri, Matematiska vetenskaper
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