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<p>皆さま，</p>
<p>明日（木）の下記の中央大学・理工学部，幾何・トポロジーセミナーは，</p>
<p>場所を「6号12階61230号室」に変更いたします．</p>
<p>その他は下記と同じです．</p>
<p>突然の変更で申し訳ありません．<br>
</p>
<p>よろしくお願いいたします．</p>
<p>芥川和雄</p>
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<blockquote type="cite" cite="mid:CO1PR17MB52903A1A6F9DDE02827D5904EF869@CO1PR17MB5290.namprd17.prod.outlook.com">
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<div class="">皆さま，</div>
<div class=""><br class="">
</div>
<div class="">下記の様に，中央大学 幾何・トポロジーセミナーを開催いたします．</div>
<div class="">興味のある方はご参加ください．</div>
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</div>
<div class="">芥川和雄</div>
<div class="">
<p class="">########################################<br class="">
</p>
<p class="">日時：2023年3月30日(木)16:00~17:30</p>
<p class="">場所：中央大学理工学部6号館7階6707号室<br class="">
</p>
<div class="moz-forward-container">講師: Julie Rowlett
(University of Gothenburg, <span style="color: rgb(77,
81, 86); font-size: 14px; font-variant-ligatures:
normal; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial;" class="">Sweden)</span></div>
<div class="moz-forward-container"><span style="color:
rgb(77, 81, 86); font-size: 14px;
font-variant-ligatures: normal; background-color:
rgb(255, 255, 255); text-decoration-thickness:
initial;" class=""><br class="">
</span></div>
<div class="moz-forward-container">
<div style="font-size: 13px;" class="">Title<span class="gmail-Apple-converted-space"> </span>: The<span class="gmail-Apple-converted-space"> </span><span class="gmail-il">mathematics</span><span class="gmail-Apple-converted-space"> </span>of<span class="gmail-Apple-converted-space"> </span>``<span class="gmail-il">hearing</span><span style="background-color: rgb(255, 255, 204);" class=""></span><span class="gmail-Apple-converted-space"> </span>the<span class="gmail-Apple-converted-space"> </span><span class="gmail-il">shape</span><span class="gmail-Apple-converted-space"> </span>of<span class="gmail-Apple-converted-space"> </span>a<span class="gmail-Apple-converted-space"> </span><span class="gmail-il">drum</span>"</div>
<div style="font-size: 13px;" class=""><br class="">
</div>
<div style="font-size: 13px;" class="">Abstract : Have
you heard<span class="gmail-Apple-converted-space"> </span>the<span class="gmail-Apple-converted-space"> </span>question,
``Can one hear<span class="gmail-Apple-converted-space"> </span>the<span class="gmail-Apple-converted-space"> </span><span class="gmail-il">shape</span><span class="gmail-Apple-converted-space"> </span>of<span class="gmail-Apple-converted-space"> </span>a<span class="gmail-Apple-converted-space"> </span><span class="gmail-il">drum</span>?" Do you know<span class="gmail-Apple-converted-space"> </span>the<span class="gmail-Apple-converted-space"> </span>answer? <br class="">
</div>
<div style="font-size: 13px;" class="">In 1966, M.
Kac's article<span class="gmail-Apple-converted-space"> </span>of<span class="gmail-Apple-converted-space"> </span>the<span class="gmail-Apple-converted-space"> </span>same<span class="gmail-Apple-converted-space"> </span>title popularized<span class="gmail-Apple-converted-space"> </span>the<span class="gmail-Apple-converted-space"> </span>inverse
isospectral problem for planar domains. <br class="">
</div>
<div style="font-size: 13px;" class="">Twenty six
years later, Gordon, Webb, and Wolpert demonstrated<span class="gmail-Apple-converted-space"> </span>the<span class="gmail-Apple-converted-space"> </span>answer,
but many naturally related problems remain open
today. <br class="">
</div>
<div style="font-size: 13px;" class="">We will discuss
results inspired by ``<span class="gmail-il">hearing</span><span class="gmail-Apple-converted-space"> </span><span style="background-color: rgb(255, 255, 204);" class=""></span>the<span class="gmail-Apple-converted-space"> </span><span class="gmail-il">shape</span><span class="gmail-Apple-converted-space"> </span>of<span class="gmail-Apple-converted-space"> </span>a<span class="gmail-Apple-converted-space"> </span><span class="gmail-il">drum</span>'' which involve
geometry, mathematical physics, (microlocal)
analysis, and number theory. <br class="">
</div>
Along the way, we will visit several currently open
problems.</div>
</div>
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<div class="">下記が web です．</div>
<br class="">
<a href="https://www.chuo-u.ac.jp/academics/faculties/science/departments/math/event/2023/01/64266/" class="moz-txt-link-freetext" moz-do-not-send="true">https://www.chuo-u.ac.jp/academics/faculties/science/departments/math/event/2023/01/64266/</a><br class="">
<br class="">
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