<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div>幾何メーリングリストの皆さま</div><div><br class=""></div><div>おもしろそうな試みなので皆さまにお知らせさせていただきます。</div><div><br class=""></div><div>森本 徹</div><div>岡数学研究所</div><div><br class=""></div><div><br class=""></div><div><br class=""></div><div><br class=""><blockquote type="cite" class=""><div class="">転送されたメッセージ:</div><br class="Apple-interchange-newline"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">差出人: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">Wojciech Krynski <<a href="mailto:krynski@impan.pl" class="">krynski@impan.pl</a>><br class=""></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">件名: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class=""><b class="">Geometry and Differential Equations Seminar, Wednesday, May 20, ONLINE</b><br class=""></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">日付: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">2020年5月15日 20:35:17 JST<br class=""></span></div><br class=""><div class=""><div class="">Dear All, <br class=""><br class="">I would like to invite you to the next meeting of the Geometry and Differential Equations Seminar at IMPAN. <br class="">The seminar will be held online, using the Zoom platform, next Wednesday, May 20, at 10:15AM (Warsaw time). <br class=""><br class="">To join the meeting please follow the link: <a href="https://us02web.zoom.us/j/88672195759" class="">https://us02web.zoom.us/j/88672195759</a><br class=""><br class=""><br class="">Feel free to pass this invitation to anyone that may be interested. <br class="">More information on the seminar can be found at: <a href="https://www.impan.pl/~krynski/GDEseminar/" class="">https://www.impan.pl/~krynski/GDEseminar/</a><br class=""><br class="">Program: <br class=""><br class="">Michael Eastwood (University of Adelaide)<br class=""><br class="">Title: Homogeneous hypersurfaces<br class=""><br class="">ABSTRACT: What's so great about the Archimedean screw? Well, for one thing, it's affine homogeneous as a surface in R^3. The Cayley surface is another classical example. Using a Lie algebraic approach, the affine homogeneous surfaces in R^3 were classified in 1996 by Doubrov, Komrakov, and Rabinovich. I shall describe a geometric approach of Vladimir Ezhov and myself, which provides an alternative classification in R^3 and some further classifications in R^4 and C^4.<br class=""><br class=""><br class="">Organizers, <br class="">Janusz Grabowski <br class="">Bronisław Jakubczyk <br class="">Paweł Nurowski <br class="">Wojciech Kryński <br class=""><a href="https://www.impan.pl/~krynski/GDEseminar/" class="">https://www.impan.pl/~krynski/GDEseminar/</a><br class=""></div></div></blockquote></div><br class=""></body></html>