<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;"><meta http-equiv="content-type" content="text/html; charset=utf-8"><div style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><meta http-equiv="content-type" content="text/html; charset=utf-8"><div style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><meta http-equiv="content-type" content="text/html; charset=utf-8"><div style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><meta http-equiv="content-type" content="text/html; charset=utf-8"><div style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">
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<div dir="auto">皆様<br>
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東大数理・複素解析幾何セミナーのお知らせです。</div><div dir="auto"><h3 style="margin: 3px 0px 8px; padding: 5px 0px; font-stretch: inherit; font-size: 14px; line-height: inherit; font-family: メイリオ, Meiryo, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", Osaka, "ＭＳ Ｐゴシック", "MS PGothic", Helvetica, Arial, sans-serif; font-size-adjust: inherit; font-kerning: inherit; font-variant-alternates: inherit; font-variant-ligatures: inherit; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-position: inherit; font-feature-settings: inherit; font-optical-sizing: inherit; font-variation-settings: inherit; vertical-align: baseline; border-top-width: 1px; border-top-style: dotted; border-top-color: rgb(33, 127, 196); border-bottom-width: 1px; border-bottom-style: dotted; border-bottom-color: rgb(33, 127, 196); overflow: hidden; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51);">2023年05月29日(月)</h3><h3 style="margin: 3px 0px 8px; padding: 5px 0px; font-stretch: inherit; font-size: 14px; line-height: inherit; font-family: メイリオ, Meiryo, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", Osaka, "ＭＳ Ｐゴシック", "MS PGothic", Helvetica, Arial, sans-serif; font-size-adjust: inherit; font-kerning: inherit; font-variant-alternates: inherit; font-variant-ligatures: inherit; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-position: inherit; font-feature-settings: inherit; font-optical-sizing: inherit; font-variation-settings: inherit; vertical-align: baseline; border-top-width: 1px; border-top-style: dotted; border-top-color: rgb(33, 127, 196); border-bottom-width: 1px; border-bottom-style: dotted; border-bottom-color: rgb(33, 127, 196); overflow: hidden; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51);"><div class="seminar_naiyo" style="font-weight: 400; margin: 0px 0px 20px; padding: 0px; font-stretch: inherit; font-size: 13px; line-height: inherit; font-size-adjust: inherit; font-kerning: inherit; font-variant-alternates: inherit; font-variant-ligatures: inherit; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-position: inherit; font-feature-settings: inherit; font-optical-sizing: inherit; font-variation-settings: inherit; vertical-align: baseline;">10:30-12:00 数理科学研究科棟(駒場) 128号室<br><span class="fontred" style="margin: 0px; padding: 0px; font-style: inherit; font-variant-caps: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; font-size-adjust: inherit; font-kerning: inherit; font-variant-alternates: inherit; font-variant-ligatures: inherit; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-position: inherit; font-feature-settings: inherit; font-optical-sizing: inherit; font-variation-settings: inherit; vertical-align: baseline; color: rgb(204, 0, 0);">ハイブリッド形式</span><br><strong style="margin: 0px; padding: 0px; font-style: inherit; font-variant-caps: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; font-size-adjust: inherit; font-kerning: inherit; font-variant-alternates: inherit; font-variant-ligatures: inherit; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-position: inherit; font-feature-settings: inherit; font-optical-sizing: inherit; font-variation-settings: inherit; vertical-align: baseline;">上原 崇人 氏</strong> (岡山大学)<br>On dynamical degrees of birational maps<br><div class="waku" style="margin: 5px 0px 8px; padding: 9px; font-style: inherit; font-variant-caps: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; font-size-adjust: inherit; font-kerning: inherit; font-variant-alternates: inherit; font-variant-ligatures: inherit; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-position: inherit; font-feature-settings: inherit; font-optical-sizing: inherit; font-variation-settings: inherit; vertical-align: baseline; border: 1px solid rgb(204, 204, 204); background-color: rgb(239, 239, 239);">[ 講演概要 ]<br>A birational map on a projective surface defines its dynamical degree, which measures the complexity of dynamical behavior of the map. The set of dynamical degrees, called the dynamical spectrum, has properties similar to that of volumes of hyperbolic 3-manifolds, shown by Thurston. In this talk, we will explain the properties of the dynamical spectrum.</div>[ 参考URL ]<br><a href="https://u-tokyo-ac-jp.zoom.us/meeting/register/tZEqceqsrTIjEtRxenSMdPogvCxlWzAogj5A" style="margin: 0px; padding: 0px; font-style: inherit; font-variant-caps: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-family: inherit; font-size-adjust: inherit; font-kerning: inherit; font-variant-alternates: inherit; font-variant-ligatures: inherit; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-position: inherit; font-feature-settings: inherit; font-optical-sizing: inherit; font-variation-settings: inherit; vertical-align: baseline; color: rgb(33, 127, 196); text-decoration: none;">https://u-tokyo-ac-jp.zoom.us/meeting/register/tZEqceqsrTIjEtRxenSMdPogvCxlWzAogj5A</a></div></h3><h3 style="margin: 3px 0px 8px; padding: 5px 0px; font-stretch: inherit; font-size: 14px; line-height: inherit; font-family: メイリオ, Meiryo, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", Osaka, "ＭＳ Ｐゴシック", "MS PGothic", Helvetica, Arial, sans-serif; font-size-adjust: inherit; font-kerning: inherit; font-variant-alternates: inherit; font-variant-ligatures: inherit; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-position: inherit; font-feature-settings: inherit; font-optical-sizing: inherit; font-variation-settings: inherit; vertical-align: baseline; border-top-width: 1px; border-top-style: dotted; border-top-color: rgb(33, 127, 196); border-bottom-width: 1px; border-bottom-style: dotted; border-bottom-color: rgb(33, 127, 196); overflow: hidden; caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51);">Zoom URL・ID・パスワードなどは１年間同じものを使うので登録は一度で大丈夫です．</h3>
今後の予定はこちら<br>
<a href="https://www.ms.u-tokyo.ac.jp/seminar/geocomp/future.html" target="_blank">https://www.ms.u-tokyo.ac.jp/seminar/geocomp/future.html</a><br>
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講演者も募集中です。<br>
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世話人<br>
平地 健吾、高山 茂晴</div>
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