var sms = '<div id="sms_bulletin">  <div id="sms_header">  <div class="do_not_print" id="arrow_left"><a href="?next=-55"><img src="//www2.math.ethz.ch/smsjs/images/arrow_left.png"/></a></div><div class="do_not_print" id="arrow_right"><a href="?next=-53"><img src="//www2.math.ethz.ch/smsjs/images/arrow_right.png"/></a></div>    <div class="sms_title">      <span style="float: left;">SMS</span>      <span>SWISS MATHEMATICAL SOCIETY</span>      <span style="float: right;">SMG</span>    </div>    <div class="sms_info">      <span style="float: left; width: 250px;">Bulletin no. 6</span>      <span style="float: right; text-align:right; width: 250px;">10.7 - 14.7.2023</span>      <span style="text-align: center; display: block; width: 250px; margin: auto; position: relative;">Summer Break 2023</span>    </div>  </div>  <div></div>  <div id="sms_content">    <div class="day">      <div class="day_title">        Monday, July 10      </div>      <div class="day_content">        <div class="day_content_item normal"><div class="event_location uni_zh"><a class="external" href="https://ethz.ch">ETH Z&uuml;rich</a></div><div class="event_type"><a class="external" href="http://www.iaa.tu-bs.de/konmerz/gausseminar/">GAuS Seminar</a></div><br /><div class="event_speaker">Prof. Dr. Satoshi  Masaki (Hokkaido University)</div><div class="event_title">On the standing-wave solutions to standard forms of a class of nonlinear Schrödinger systems <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br /> In this talk, we consider 2-coupled systems of nonlinearSchrödinger equations with cubic nonlinearities. One typical system inthis class is the Manakov model. In the first part, we consider theclassification of 2-coupled systems. The complete list of standardforms of systems with Hamiltonian structure is given. This is due to arepresentation of a system in terms of a pair of a matrix and a vectorwhich clarifies the Hamiltonian structure of the systems. In the secondpart, we consider standing-wave solutions to the standard forms. Tothis end, we introduce an abstract treatment that is applicable to awider class of N-coupled systems. It turns out that the existence /nonexistence and the shape of the ground state are well-described bythe function determining the nonlinear potential part.</div><div class="event_time">13:00 &bull; Online via Zoom</div>        </div>      </div>    </div>    <div class="day">      <div class="day_title">        Tuesday, July 11      </div>      <div class="day_content">        <div class="day_content_item no_event">        No events scheduled today!        </div>      </div>    </div>    <div class="day">      <div class="day_title">        Wednesday, July 12      </div>      <div class="day_content">        <div class="day_content_item normal"><div class="event_location uni_zh"><a class="external" href="https://ethz.ch">ETH Z&uuml;rich</a></div><div class="event_type"><a class="external" href="https://math.ethz.ch/s/algebraic-geometry-and-moduli-seminar">Algebraic Geometry and Moduli Seminar</a></div><br /><div class="event_speaker">Prof. Dr. Hsian-Hua Tseng (Ohio State University)</div><div class="event_title">Virasoro constraints for toric bundles <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br />Virasoro constraints are conjectural differential equations satisfied by generating functions of descendant Gromov-Witten invariants of Kahler manifolds/orbifolds. In this talk, we will begin with reviewing Givental\'s formulation of these constraints. We will then discuss the following result, which is a joint work with T. Coates and A. Givental: For a toric bundle E-> B, Virasoro constraints hold for E if and only if they hold for B. </div><div class="event_time">13:30 &bull; ETH Zentrum, R&auml;mistrasse 101, Z&uuml;rich, Building HG, Room G 43</div>        </div>      </div>    </div>    <div class="day">      <div class="day_title">        Thursday, July 13      </div>      <div class="day_content">        <div class="day_content_item normal"><div class="event_location uni_la"><a class="external" href="https://www.epfl.ch">EPF Lausanne</a></div><div class="event_type"><a class="external" href="https://calendar.google.com/calendar/embed?mode=AGENDA&height=600&wkst=2&bgcolor=%23FFFFFF&src=t36it03v52cus2detrvinlgk18%40group.calendar.google.com&color=%235F6B02&ctz=Europe%2FZurich">Groups, Arithmetic and Algebraic Geometry Seminar </a></div><br /><div class="event_speaker"> Joaquin Moraga (UCLA)</div><div class="event_title">Fundamental groups of log Calabi-Yau surfaces <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br />Let (X,B) be a log Calabi-Yau surface. We show that the fundamental grouppi_1(X,B) admits a normal metabelian subgroup of rank at most 4 and index at most 7200.We show that this statement is optimal in the following sense: the bounds 4 and 7200 are sharp and there are examples in which pi_1(X,B) is not a virtually abelian group.This is joint work in progress with Cecile Gachet and Zhining Liu.During the pre-talk I will introduce smooth Fano varieties, smooth Calabi-Yau varieties, and compute the fundamental groups of some Fano surfaces and Calabi-Yau surfaceswith canonical singularities, i.e., with Du Val singularities.</div><div class="event_time">14:15 &bull; EPF Lausanne, Salle MA A1 12</div>        </div>      </div>    </div>    <div class="day">      <div class="day_title">        Friday, July 14      </div>      <div class="day_content">        <div class="day_content_item no_event">        No events scheduled today!        </div>      </div>    </div>  </div>  <div id="sms_footer">    address: Alessandra Naldi Windler, Departement Mathematik, HG G 51.4, ETH Zurich, Raemistrasse 101, CH-8092 Zurich<br />    email: <a href="mailto:bulletin@math.ch">bulletin@math.ch</a> | phone: +41 44 632 3684 | url: <a href="https://math.ch">https://math.ch</a>    <br /><br /><img src="//www2.math.ethz.ch/smsjs/sms_logo.gif" width="150" alt="SMS/SMG Logo" title="SMS/SMG Logo" />  </div></div>';