var sms = '<div id="sms_bulletin">  <div id="sms_header">  <div class="do_not_print" id="arrow_left"><a href="?next=1"><img src="//www2.math.ethz.ch/smsjs/images/arrow_left.png"/></a></div><div class="do_not_print" id="arrow_right"><a href="?next=3"><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. 3</span>      <span style="float: right; text-align:right; width: 250px;">28.9 - 2.10.2026</span>      <span style="text-align: center; display: block; width: 250px; margin: auto; position: relative;">Autumn Semester 2026</span>    </div>  </div>  <div></div>  <div id="sms_content">    <div class="day">      <div class="day_title">        Monday, September 28      </div>      <div class="day_content">        <div class="day_content_item normal"><div class="event_location uni_ba"><a class="external" href="https://unibas.ch">Universität Basel</a></div><div class="event_type"><a class="external" href="https://dmi.unibas.ch/de/studium/mathematik/doktorat/bernoullis-tafelrunde">Bernoullis Tafelrunde</a></div><br /><div class="event_speaker"> Kenza Memlouk (Université de Strasbourg)</div><div class="event_title"><a class="external" href="https://dmi.unibas.ch/de/studium/mathematik/doktorat/bernoullis-tafelrunde/detail/bernoullis-tafelrunde-kenza-memlouk-universite-de-strasbourg/">Towards the motivic Galois group for a double zeta value</a> <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br />The goal of this talk is to discuss the motivic Galois group of a double zeta value. To do so, the speaker will recall some elements of Galois theory. Then, periods and more precisely multiple zeta values are introduced. We will see that Galois philosophy can be used to study periods. At the end, the speaker will express the motivic Galois group of a single zeta value and will compare it to the case of a double zeta value.</div><div class="event_time">12:15 &bull; Universität Basel, Seminarraum 05.002, Spiegelgasse 5</div>        </div>        <div class="day_content_item normal"><div class="event_location uni_be"><a class="external" href="https://www.unibe.ch">Universität Bern</a></div><div class="event_type"><a class="external" href="https://www.math.unibe.ch/research/talks/colloquium/index_eng.html">Mathematisches Kolloquium </a></div><br /><div class="event_speaker">Dr. Damaris Meier (ETHZ)</div><div class="event_title"><a class="external" href="https://www.math.unibe.ch/research/talks/colloquium/index_eng.html">Uniformization of metric surfaces</a> <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br />The classical uniformization theorem states that every simply connected Riemann surface is conformally equivalent to the unit disk, the complex plane, or the Riemann sphere. In recent years, there has been growing interest in finding non-smooth analogues of this foundational result. This talk reviews key theorems leading toward a general uniformization theory for metric surfaces of locally finite area. We then demonstrate how, under mild assumptions, such parameterizations can be constructed by exploiting the existence and regularity properties of energy-minimizing Sobolev mappings.</div><div class="event_time">17:15 &bull; Universität Bern, Sidlerstrasse 5, 3012 Bern, Room B6</div>        </div>      </div>    </div>    <div class="day">      <div class="day_title">        Tuesday, September 29      </div>      <div class="day_content">        <div class="day_content_item normal"><div class="event_location uni_dis"><a class="external" href="https://unidistance.ch">UniDistance Suisse</a></div><div class="event_type"><a class="external" href="https://unidistance.ch/en/mathematiques-et-informatique/recherche/number-theory/number-theory-seminar">Number Theory Seminar</a></div><br /><div class="event_speaker"> Ju-Feng  Wu  (UCD)</div><div class="event_title">A non-vanishing result for Bloch--Kato Selmer groups of cuspforms <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br />The Bloch--Kato conjecture is one of the foundational conjectures in algebraic number theory, predicting a precise relationship between L-functions and Bloch--Kato Selmer groups. In this talk, based on joint work with Muhammad Manji and Frederick Thøgersen, I will sketch a non-vanishing result for certain Bloch--Kato Selmer groups attached to cuspforms via families of Galois representations over small parabolic eigenvarieties of GSp(4). </div><div class="event_time">15:00 &bull; <a class="external" href="https://tinyurl.com/UniDistanceNTSeminar">UniDistance Suisse, Zoom</a></div>        </div>        <div class="day_content_item normal"><div class="event_location uni_zh"><a class="external" href="https://uzh.ch">Universit&auml;t Z&uuml;rich</a></div><div class="event_type"><a class="external" href="https://math.ethz.ch/s/zurich-colloquium-in-mathematics">Zurich Colloquium in Mathematics</a></div><br /><div class="event_speaker"> Emily Riehl (Johns Hopkins University)</div><div class="event_title">A reintroduction to proofs <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br />This talk proposes a shift in the implicit foundations of mathematics from set theory and logic to dependent type theory (where the primitive notion of “type” replaces both sets and propositions). While these new foundations are more complex, we contend they make it easier for students to learn to write correct proofs and for professionals to communicate precise mathematical ideas to other humans or to a computer.</div><div class="event_time">16:30 &bull; UZH Zentrum, Building KO2, Room F 150</div>        </div>      </div>    </div>    <div class="day">      <div class="day_title">        Wednesday, September 30      </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"> Paul  Zinn-Justin  (University of Melbourne)</div><div class="event_title">Title T.B.A.</div><div class="event_time">10:00 &bull; EPF Lausanne</div>        </div>        <div class="day_content_item normal"><div class="event_location uni_zh"><a class="external" href="https://uzh.ch">Universit&auml;t Z&uuml;rich</a></div><div class="event_type"><a class="external" href="https://www.math.uzh.ch/mat760">Ergodic theory and dynamical systems seminar</a></div><br /><div class="event_speaker">Dr. Tariq Osman (Universität Zürich)</div><div class="event_title">Title T.B.A.</div><div class="event_time">13:30 &bull; UZH Irchel, Winterthurerstrasse 190, Z&uuml;rich, Building Y27, Room H 28</div>        </div>        <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/geometry-seminar">Geometry Seminar</a></div><br /><div class="event_speaker"> Serge Cantat (Université de Rennes)</div><div class="event_title">On the product replacement algorithm in compact Lie groups <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br />Let G be a compact Lie group. Let n be an integer. Given n elements g<sub>1</sub>, …, g<sub>n</sub> in G, one can choose one of the g<sub>i</sub> and replace it into its inverse, or into the product g<sub>i</sub>g<sub>j</sub> for some j distinct from i; these basic operations do not change the subgroup of G generated by the g<sub>i</sub>. Doing so, one gets a group of transformations of G<sup>n</sup> (generated by all these basic operations). The problem I will discuss is: what can be said on the dynamics of this group action on G<sup>n</sup>? For instance, can we describe the closures of orbits, or the invariant probability measures? As we shall see, the answer is yes when n becomes large, in fact larger than an explicit constant that depends on G. This is based on a joint work with Christophe Dupont and Florestan Martin-Baillon, which complements previous works of Tsachik Gelander. </div><div class="event_time">15:30 &bull; ETH Zentrum, R&auml;mistrasse 101, Z&uuml;rich, Building HG, Room G 43</div>        </div>        <div class="day_content_item normal"><div class="event_location uni_be"><a class="external" href="https://www.unibe.ch">Universität Bern</a></div><div class="event_type"><a class="external" href="https://www.imsv.unibe.ch/research/talks/colloquia/index_eng.html">Colloquia on Probability and Statistics </a></div><br /><div class="event_speaker">Prof. Dr. Patricia Alonso Ruiz (Friedrich Schiller University Jena)</div><div class="event_title"><a class="external" href="https://www.imsv.unibe.ch/research/talks/schedule/index_eng.html">Stochastics meet geometry on fractals: 	Brownian motion and the isoperimetric inequality</a> <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br />With its long history and practical applications, the isoperimetric inequality serves as a geometric tool whose proof has connected geometry with many areas of mathematics. For instance, given a certain amount of material, you would like to find a shape that maximizes the volume you can wrap with it. However, if the material shows fractal features, such as being highly porous and symmetric... Which volume measure do you use? Which perimeter measure? And what kind of relationship (!) between these measurements can one expect?... and where is Brownian motion, by the way? This talk will address the questions above, revisiting a beautiful connection between Brownian motion, functions of bounded variation and the isoperimetric inequality originally due to Ledoux. We will see how these ideas may provide an approach to study isoperimetric problems on fractal spaces, and in particular on some whose micro- and macrostructure present different scaling. The talk is based on joint work with Fabrice Baudoin (Aarhus University). </div><div class="event_time">16:15 &bull; Universität Bern, Hörsaal B78, ExWi, Sidlerstrasse 5, 3012 Bern</div>        </div>        <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/sam/news-and-events/zhacm-colloquia">Zurich Colloquium in Applied and Computational Mathematics</a></div><br /><div class="event_speaker">Prof. Dr. Matthew Colbrook (University of Cambridge)</div><div class="event_title">Beyond the circle: Schiffer’s conjecture and computation <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br />When does the behaviour of a single eigenfunction determine the shape of a domain? Schiffer’s conjecture predicts that a bounded, simply connected planar domain must be a disc if it admits a nonconstant Neumann eigenfunction that is constant on the boundary. I will present joint work with George Stepaniants disproving this conjecture by constructing a noncircular domain with real-analytic boundary. The same example disproves the planar Pompeiu conjecture, connecting spectral geometry to a problem about averages over translated and rotated domains dating back to 1929. The challenge is not merely to find a convincing numerical picture, but to prove that an exact domain and eigenfunction exist. I will explain how conformal mapping, spectral analysis and a contraction argument turn a numerical candidate into a theorem. The crucial step is to control everything a finite computation leaves out, including the infinitely many omitted modes, while rigorously accounting for numerical error. I will then draw on recent work on eigenvalue certification and the conjectures of Forsythe and Kenig to discuss the changing role of computers and AI in mathematical discovery. These examples range from assistance with code to the discovery of proof mechanisms and formal verification in Lean. They also expose persuasive arguments that fail. I will distinguish the roles of exploration, mathematical judgment and independent verification, and discuss how these tools are changing which problems are practical to pursue. No background in computer-assisted proof or AI will be assumed.</div><div class="event_time">16:30 &bull; ETH Zentrum, R&auml;mistrasse 101, Z&uuml;rich, Building HG, Room G 19.2</div>        </div>      </div>    </div>    <div class="day">      <div class="day_title">        Thursday, October 1      </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/fim/activities/nachdiplom-lectures">Nachdiplomvorlesung</a></div><br /><div class="event_speaker"> Cristopher Moore (Santa Fe Institute)</div><div class="event_title">Computational complexity and phase transitions</div><div class="event_time">10:15 &bull; ETH Zentrum, R&auml;mistrasse 101, Z&uuml;rich, Building HG, Room G 19.1</div>        </div>        <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/fim/activities/nachdiplom-lectures">Nachdiplomvorlesung</a></div><br /><div class="event_speaker"> Kaibo Hu (University of Oxford)</div><div class="event_title">Finite Element Tensor Calculus</div><div class="event_time">10:15 &bull; ETH Zentrum, R&auml;mistrasse 101, Z&uuml;rich, Building HG, Room G 43</div>        </div>        <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/fim/activities/nachdiplom-lectures">Nachdiplomvorlesung</a></div><br /><div class="event_speaker"> Alan Reid (Rice University)</div><div class="event_title">Arithmetic groups and their profinite completions</div><div class="event_time">14:15 &bull; ETH Zentrum, R&auml;mistrasse 101, Z&uuml;rich, Building HG, Room G 43</div>        </div>        <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/talks-in-financial-and-insurance-mathematics">Talks in Financial and Insurance Mathematics</a></div><br /><div class="event_speaker">Prof. Dr. Yan Dolinsky (Hebrew University of Jerusalem)</div><div class="event_title">Exponential-Utility Maximization in Gaussian Markets <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br />We will discuss exponential-utility maximization in discrete-time Gaussian markets. The Gaussian structure reduces the problem to a matrix optimization problem and gives an explicit characterization of the optimal strategy and value. We  will illustrate the approach with delayed trading and AR(1) models, and then focus on fractional Brownian motion. In the high-frequency limit, spectral methods lead to explicit asymptotics for the optimal utility and a scaling limit for the optimal strategy.</div><div class="event_time">17:15 &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">        Friday, October 2      </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://www.epfl.ch/schools/sb/research/math/statistics-seminars/">Statistics Seminar </a></div><br /><div class="event_speaker"> Jessica Young (Harvard)</div><div class="event_title">Title T.B.A.</div><div class="event_time">15:15 &bull; EPF Lausanne, CM 1 517</div>        </div>        <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. Ignacio Barros (University of Antwerp)</div><div class="event_title">Euler pairing and the tautological ring of moduli spaces of K3 surfaces <span class="abstract-button do_not_print">abstract</span></div><div class="abstract-text" style="display: none"><strong>Abstract:</strong><br />I will present work in progress on a Lefschetz-type structure on the subring in Chow generated by special cycles. In particular, we can relate the kernel of the Lefschetz operator to the vanishing of certain L-functions and obtain lower bounds for the rank of the space of tautological cycles of degree up to 16. This is very much "in progress" and all human-generated, so there will be some discussion, questions, and confusion. It is all joint work with Laure Flapan and Riccardo Zuffetti.</div><div class="event_time">16:00 &bull; ETH Zentrum, R&auml;mistrasse 101, Z&uuml;rich, Building HG, Room G 43</div>        </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>';