[geometry-ml:05497] 神楽坂微分幾何学セミナー開催のお知らせ

[Naoyuki Koike]

幾何学分科会MLの皆様

「神楽坂微分幾何学セミナー」を下記の通り開催致しますので、ご案内させていただきます。

開催日時：2024年1月23日(火）15:00~16:30
場所：東京理科大学 神楽坂キャンパス 842教室(8号館4階）
講演者：Albert Wood (King's College London)
講演タイトル：Infinite-time Singularities of Lagrangian Mean Curvature Flow
講演アブストラクト：
　Special Lagrangian submanifolds are volume-minimising submanifolds of Calabi-Yau manifolds, 
with important applications to theoretical physics. In a series of papers released two decades ago, 
Dominic Joyce considers the problem of desingularising special Lagrangian submanifolds in Calabi-Yau 
manifolds with isolated conical singularities, by gluing in suitable smooth, asymptotically conical special 
Lagrangians at the singular points. He found that in certain cases, when a topological obstruction vanishes, 
this desingularisation procedure may be carried out to produce nearby smooth special Lagrangians.
In new work with Chung-Jun Tsai and Wei-Bo Su of National Taiwan University, we consider the complementary 
case of `obstructed’ special Lagrangians, where Joyce’s result does not hold. Instead, we construct examples 
for which the singular special Lagrangian may be viewed as the infinite-time singularity of a mean curvature flow. 
These are the first constructed examples of infinite-time singularities of Lagrangian mean curvature flows.

ホームページ：https://www.rs.kagu.tus.ac.jp/~koike/Kagu-diffgeo-seminar.html

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東京理科大学
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