[geometry-ml:04735] 中央大学幾何トポロジーセミナー

[Kazuo Akutagawa]

皆さま，

下記のように中央大・幾何トポロジーセミナーを対面で行います．

ご参加をお待ちしています．


場所：中央大学・後楽園キャンパス 6号館 12階 61202号室

日時：7月1日（金）17：00～18：00

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講演者：Jeff Viaclovsky (Department of Mathematics, University of 
California, Irvine)


タイトル: Gravitational instantons, rational surfaces, and K3 surfaces

講演要旨: I will describe some examples of complete non-compact Ricci-flat 
metrics in dimension 4, which are called "gravitational instantons.
" In many cases, these can be compactified complex analytically to 
rational surfaces.
I will also discuss how these gravitational instantons can arise from 
sequences of degenerating Ricci-flat metrics on the compact K3 surface, 
through a process called "bubbling".
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芥川和雄

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