<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">幾何学メーリングリストの皆様，<div><br></div><div>東工大幾何セミナーのお知らせです．</div><div>対面とZoomのハイブリッド形式で行う予定です．</div><div>ZoomURLは以下をご覧ください．</div><div><div style="display: block;"><div style="-webkit-user-select: all; -webkit-user-drag: element; display: inline-block;" class="apple-rich-link" draggable="true" role="link" data-url="https://sites.google.com/view/titech-geom-seminar/home"><a style="border-radius:10px;font-family:-apple-system, Helvetica, Arial, sans-serif;display:block;-webkit-user-select:none;width:300px;user-select:none;-webkit-user-modify:read-only;user-modify:read-only;overflow:hidden;text-decoration:none;" class="lp-rich-link" rel="nofollow" href="https://sites.google.com/view/titech-geom-seminar/home" dir="ltr" role="button" draggable="false" width="300"><table style="table-layout:fixed;border-collapse:collapse;width:300px;background-color:#E5E6E9;font-family:-apple-system, Helvetica, Arial, sans-serif;" class="lp-rich-link-emailBaseTable" cellpadding="0" cellspacing="0" border="0" width="300"><tbody><tr><td vertical-align="center"><table bgcolor="#E5E6E9" cellpadding="0" cellspacing="0" width="300" style="font-family:-apple-system, Helvetica, Arial, sans-serif;table-layout:fixed;background-color:rgba(229, 230, 233, 1);" class="lp-rich-link-captionBar"><tbody><tr><td style="padding:8px 0px 8px 0px;" class="lp-rich-link-captionBar-textStackItem"><div style="max-width:100%;margin:0px 16px 0px 16px;overflow:hidden;" class="lp-rich-link-captionBar-textStack"><div style="word-wrap:break-word;font-weight:500;font-size:12px;overflow:hidden;text-overflow:ellipsis;text-align:left;" class="lp-rich-link-captionBar-textStack-topCaption-leading"><a rel="nofollow" href="https://sites.google.com/view/titech-geom-seminar/home" style="text-decoration: none" draggable="false"><font color="#272727" style="color: rgba(0, 0, 0, 0.847059);">Titech Geometry Seminar</font></a></div><div style="word-wrap:break-word;font-weight:400;font-size:11px;overflow:hidden;text-overflow:ellipsis;text-align:left;" class="lp-rich-link-captionBar-textStack-bottomCaption-leading"><a rel="nofollow" href="https://sites.google.com/view/titech-geom-seminar/home" style="text-decoration: none" draggable="false"><font color="#808080" style="color: rgba(0, 0, 0, 0.498039);">sites.google.com</font></a></div></div></td><td style="padding:6px 12px 6px 0px;" class="lp-rich-link-captionBar-rightIconItem" width="36"><a rel="nofollow" href="https://sites.google.com/view/titech-geom-seminar/home" draggable="false"><img style="pointer-events:none !important;display:inline-block;width:36px;height:36px;border-radius:3px;" width="36" height="36" draggable="false" class="lp-rich-link-captionBar-rightIcon" alt="favicon.ico" src="cid:71ACFE7E-A9DB-422C-8129-CCF1E9262ABC"></a></td></tr></tbody></table></td></tr></tbody></table></a></div></div></div><div><div>
<meta charset="UTF-8"><div dir="auto" style="text-align: start; text-indent: 0px; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="text-align: start; text-indent: 0px; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="text-align: start; text-indent: 0px; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);"><br></div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);">4月21日（金）16:30-18:00 大岡山キャンパス本館H201セミナー室</div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);">久本智之氏（東京都立大学）</div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);">「代数多様体の最適退化に対応する幾何学的フローと，その漸近的構成について」</div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);">概要：<span class="ContentPasted0" style="background-color: rgb(255, 255, 255); display: inline !important;">K半安定でないFano多様体に対してDonaldson-二木不変量を最小化するようなテ</span><span style="background-color: rgb(255, 255, 255);">スト配位を最適退化と呼ぶ。</span><span class="ContentPasted0" style="background-color: rgb(255, 255, 255); display: inline !important;">最適退化はKähler-Ricci流やCalabi流と呼ばれる幾何学的フローの代数的な対応</span><span style="background-color: rgb(255, 255, 255);">物になっている。</span></div><div class="elementToProof" style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">この講演では、最適退化と各種幾何学的フローの関係について解説する。<span class="ContentPasted0" style="display: inline !important;">また、幾何学的量子化を用いてこれらのフローを漸近的に構成する試みを紹介す</span>る。</div><div class="elementToProof" style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"><br></div><div class="elementToProof" style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">今後のセミナーの予定については以下をご覧ください．</div><div class="elementToProof" style="background-color: rgb(255, 255, 255);"><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; display: block;"><div style="-webkit-user-select: all; -webkit-user-drag: element; display: inline-block;" class="apple-rich-link" draggable="true" role="link" data-url="https://sites.google.com/view/titech-geom-seminar/home"><a style="border-radius:10px;font-family:-apple-system, Helvetica, Arial, sans-serif;display:block;-webkit-user-select:none;width:300px;user-select:none;-webkit-user-modify:read-only;user-modify:read-only;overflow:hidden;text-decoration:none;" class="lp-rich-link" rel="nofollow" href="https://sites.google.com/view/titech-geom-seminar/home" dir="ltr" role="button" draggable="false" width="300"><table style="table-layout:fixed;border-collapse:collapse;width:300px;background-color:#E5E6E9;font-family:-apple-system, Helvetica, Arial, sans-serif;" class="lp-rich-link-emailBaseTable" cellpadding="0" cellspacing="0" border="0" width="300"><tbody><tr><td vertical-align="center"><table bgcolor="#E5E6E9" cellpadding="0" cellspacing="0" width="300" style="font-family:-apple-system, Helvetica, Arial, sans-serif;table-layout:fixed;background-color:rgba(229, 230, 233, 1);" class="lp-rich-link-captionBar"><tbody><tr><td style="padding:8px 0px 8px 0px;" class="lp-rich-link-captionBar-textStackItem"><div style="max-width:100%;margin:0px 16px 0px 16px;overflow:hidden;" class="lp-rich-link-captionBar-textStack"><div style="word-wrap:break-word;font-weight:500;font-size:12px;overflow:hidden;text-overflow:ellipsis;text-align:left;" class="lp-rich-link-captionBar-textStack-topCaption-leading"><a rel="nofollow" href="https://sites.google.com/view/titech-geom-seminar/home" style="text-decoration: none" draggable="false"><font color="#272727" style="color: rgba(0, 0, 0, 0.847059);">Titech Geometry Seminar</font></a></div><div style="word-wrap:break-word;font-weight:400;font-size:11px;overflow:hidden;text-overflow:ellipsis;text-align:left;" class="lp-rich-link-captionBar-textStack-bottomCaption-leading"><a rel="nofollow" href="https://sites.google.com/view/titech-geom-seminar/home" style="text-decoration: none" draggable="false"><font color="#808080" style="color: rgba(0, 0, 0, 0.498039);">sites.google.com</font></a></div></div></td><td style="padding:6px 12px 6px 0px;" class="lp-rich-link-captionBar-rightIconItem" width="36"><a rel="nofollow" href="https://sites.google.com/view/titech-geom-seminar/home" draggable="false"><img style="pointer-events:none !important;display:inline-block;width:36px;height:36px;border-radius:3px;" width="36" height="36" draggable="false" class="lp-rich-link-captionBar-rightIcon" alt="favicon.ico" src="cid:96914A0D-8D8C-4B71-8624-11BA2C586CD3"></a></td></tr></tbody></table></td></tr></tbody></table></a></div></div><font color="#000000"><span style="caret-color: rgb(0, 0, 0);"></span></font></div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);"><br></div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);">皆様のご参加をお待ちしております．</div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);"><br></div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);">=====<br>東京工業大学 理学院 数学系<br>(Tokyo Institute of Technology,</div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);">Department of Mathematics)</div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);"><br>中村 聡（Satoshi Nakamura）<br><br>s.nakamura@math.titech.ac.jp</div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; color: rgb(0, 0, 0);">=====</div></div></div></div>
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