• <tr id='PEkztR'><strong id='PEkztR'></strong><small id='PEkztR'></small><button id='PEkztR'></button><li id='PEkztR'><noscript id='PEkztR'><big id='PEkztR'></big><dt id='PEkztR'></dt></noscript></li></tr><ol id='PEkztR'><option id='PEkztR'><table id='PEkztR'><blockquote id='PEkztR'><tbody id='PEkztR'></tbody></blockquote></table></option></ol><u id='PEkztR'></u><kbd id='PEkztR'><kbd id='PEkztR'></kbd></kbd>

    <code id='PEkztR'><strong id='PEkztR'></strong></code>

    <fieldset id='PEkztR'></fieldset>
          <span id='PEkztR'></span>

              <ins id='PEkztR'></ins>
              <acronym id='PEkztR'><em id='PEkztR'></em><td id='PEkztR'><div id='PEkztR'></div></td></acronym><address id='PEkztR'><big id='PEkztR'><big id='PEkztR'></big><legend id='PEkztR'></legend></big></address>

              <i id='PEkztR'><div id='PEkztR'><ins id='PEkztR'></ins></div></i>
              <i id='PEkztR'></i>
            1. <dl id='PEkztR'></dl>
              1. <blockquote id='PEkztR'><q id='PEkztR'><noscript id='PEkztR'></noscript><dt id='PEkztR'></dt></q></blockquote><noframes id='PEkztR'><i id='PEkztR'></i>

                Canonically fibered surfaces of general type


                主讲人:吕鑫 华东师范大学教授


                地点:腾讯会议 467293340


                内容介绍:The canonical map of a surface of general type is called fibered, if its  canonical map induces a fibration. Beauville showed that the genus of such a  fibration is bounded from above by $5$ when the geometric genus is large.  Examples with the genus equal to $2$ or $3$ have been constructed. Xiao asked  whether there exists a surface of general type with large geometric genus, whose  canonical map is fibered of genus greater than $3$? In this talk, I will report  such examples with the genus equal to $4$.