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<p class="xmsonormal"><span lang="en-NL">Dear </span><span lang="EN-US">all</span><span lang="en-NL">,<o:p></o:p></span></p>
<p class="xmsonormal"><span lang="en-NL"> <o:p></o:p></span></p>
<p class="xmsonormal"><span lang="EN-US">Just a quick reminder that </span><span lang="en-NL">Johann</span><span lang="EN-US">a Bimmermann (<a href="https://www.mathi.uni-heidelberg.de/~jbimmermann/">University of Heidelberg</a>)</span><span lang="en-NL"> will
</span><span lang="EN-US">talk today at 3pm i</span><span lang="en-NL">n the Mathlab</span><span lang="EN-US"> (09A46)</span><span lang="en-NL">.</span><span lang="EN-US"> Below you find the title and abstract.</span><span lang="EN-US">
</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="xmsonormal"><span lang="en-NL"> <o:p></o:p></span></p>
<p class="xmsonormal"><span lang="EN-US">All the best</span><span lang="en-NL">,<o:p></o:p></span></p>
<p class="xmsonormal"><span lang="en-NL"> <o:p></o:p></span></p>
<p class="xmsonormal"><span lang="en-NL">Gabriele<o:p></o:p></span></p>
<p class="xmsonormal"><span lang="en-NL"> <o:p></o:p></span></p>
<p class="xmsonormal"><b><span lang="en-NL" style="font-size:12.0pt;color:#4472C4">Title:</span></b><span lang="en-NL" style="font-size:12.0pt"> On the Hofer-Zehnder capacity of magnetic surfaces via pseudo-holomorphic curves</span><span lang="en-NL"><o:p></o:p></span></p>
<p class="xmsonormal"><b><span lang="en-NL" style="font-size:12.0pt;color:#4472C4"> </span></b><span lang="en-NL"><o:p></o:p></span></p>
<p class="xmsonormal"><b><span lang="en-NL" style="font-size:12.0pt;color:#4472C4">Abstract:</span></b><b><span lang="en-NL" style="font-size:12.0pt"> </span></b><span lang="en-NL" style="font-size:12.0pt">The Hofer-Zehnder capacity is a symplectic invariant
that roughly speaking measures the symplectic size of a manifold in terms of the possible Hamiltonian dynamics. In general this quantity is hard to compute and only known in few cases. In this talk I will present a computation of its value for the tangent
bundle over surfaces with a certain twisted symplectic form. The main tools will come from theory of pseudo holomorphic curves and the existence of a Hamiltonian circle action.</span><span lang="en-NL"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="en-NL"><o:p> </o:p></span></p>
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