<br><div class="gmail_quote"><div class="gmail_quote"><div class="gmail_quote"><div class="gmail_quote"> BINGHAMTON GEOMETRY/TOPOLOGY SEMINAR<br><div class="gmail_quote"><div class="gmail_quote"><div class="gmail_quote">
<br><i>Date:</i> Thursday, Apr 26, 2012<div><br>
<i>Time:</i> 2:50-3:50pm<br><i>Place:</i> Library North 2205 followed by coffee/tea in the Anderson Reading Room.<br>
<br>
</div><i>Speaker: </i><b> </b>Micah Miller (Central Connecticut State University)
<br><i>Title: </i>The string topology loop product through twisting cochains<br>
<span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"></span><div>
<i><br>Abstract:</i><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"></span> String topology is the study of the free loop space of a
manifold LM. The loop product, defined on the homology of LM, is described
intuitively as a combination of the intersection product on M and loop
concatenation in the based loop space of M. However, since the
intersection product is well-defined only on transversally intersecting
chains, this description is incomplete. Brown's theory of twisting
cochains provides a chain model of a bundle in terms of the chains on the
base and chains on the fiber. We extend this theory so that it can be
applied to provide a model of the free loop space. We give a precise
definition of the loop product defined at the chain level.
</div></div></div></div></div></div></div>
</div><br>