Luca Rizzi, Local Systems, Algebraic Foliations and Fibrations
TBASpeaker Luca Rizzi IBS-CCG Given a semistable fibration f : X → B I will show a correspondence between foliations on X and local systems on B. Building …
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Seminar
Guolei Zhong, Dynamical Characterization of Projective Toric Varieties
B266 IBS, Korea, Republic ofSpeaker Guolei Zhong IBS-CCG As a fundamental building block of the equivariant minimal model program, the rationally connected variety plays a significant role in the classification of projective …
Ziquan Zhuang, Boundedness of Singularities and Minimal Log Discrepancies of Kollár Components
on-lineSpeaker Ziquan Zhuang Johns Hopkins U Several years ago, Chi Li introduced the local volume of a klt singularity in his work on K-stability. The local-global analogy between …
Benjamin McMillan, The Range of the Killing Operator
B236-1 IBS, Korea, Republic ofSpeaker Benjamin McMillan IBS-CCG The Killing operator in (semi) Riemannian geometry has well understood kernel: the infinitesimal symmetries of a given metric. At the next level, the range …
Jakub Witaszek, Quasi-F-splittings
on-lineSpeaker Jakub Witaszek Princeton U What allowed for many developments in algebraic geometry and commutative algebra was a discovery of the notion of a Frobenius splitting, which, briefly …
Pak Tung Ho, The Weighted Yamabe Problem
B236-1 IBS, Korea, Republic ofSpeaker Pak Tung Ho Sogang University In this talk, I will explain what the weighted Yamabe problem is, and mention some related results that Jinwoo Shin (KIAS) and …
Aeryeong Seo, TBA
B266 and on-lineSpeaker Aeryeong Seo Kyungpook National University TBA
Jinhyun Park, A Reciprocity Theorem Arising from a Family of Algebraic Curves
B236-1 IBS, Korea, Republic ofSpeaker Jinhyun Park KAIST The classical reciprocity theorem, also called the residue theorem, states that the sum of the residues of a rational (meromorphic) differential form on a …
Jaewoo Jeong, Hankel Index of Smooth Non-ACM Curves of Almost Minimal Degree
B236-1 IBS, Korea, Republic ofSpeaker Jaewoo Jeong IBS CCG The Hankel index of a real variety is a semi-algebraic invariant that quantifies the (structural) difference between nonnegative quadrics and sums of …
Livia Campo, Fano 3-folds and Equivariant Unprojections
B266 IBS, Korea, Republic ofSpeaker Livia Campo KIAS The classification of terminal Fano 3-folds has been tackled from different directions: for instance, using the Minimal Model Program, via explicit Birational Geometry, and …
Junho Choe, Constructions of Counterexamples to the Regularity Conjecture
B266 IBS, Korea, Republic ofSpeaker Junho Choe KIAS Castelnuovo-Mumford regularity, simply regularity, is one of the most interesting invariants in projective algebraic geometry, and the regularity conjecture due to Eisenbud and Goto …
Joaquín Moraga, Coregularity of Fano Varieties
on-lineSpeaker Joaquín Moraga UCLA In this talk, we will introduce the absolute coregularity of Fano varieties. The coregularity measures the singularities of the anti-pluricanonical sections. Philosophically, most Fano …