Slight correction: If you are already on the listserve, there is no need to sign up again. If you wish to receive further email announcements *and you are not on the list already*, sign up at <br><a href="http://www1.math.binghamton.edu/mailman/listinfo/topsem" target="_blank">http://www1.math.binghamton.edu/mailman/listinfo/topsem</a> .<br>
<br><br><br><br><div class="gmail_quote">On Mon, Sep 13, 2010 at 4:38 PM, Lucas Sabalka <span dir="ltr"><<a href="mailto:sabalka@math.binghamton.edu">sabalka@math.binghamton.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Dear all: Below is the announcement for the first Binghamton Geometry and Topology Seminar of the semester. If you (including grad students!) wish to receive further email announcements, please sign up for the Binghamton Geometry/Topology Seminar Listserve, at <a href="http://www1.math.binghamton.edu/mailman/listinfo/topsem" target="_blank">http://www1.math.binghamton.edu/mailman/listinfo/topsem</a> (and apologies if you get this email twice).<br>
<br><br><br>Date: Thursday, September 16, 2010<br><div class="gmail_quote">
<br>
Time: 2:50–3:50 pm<br>
<br>
Place: Library North 2205<br>
(followed by coffee/tea in the Anderson Reading Room)<br>
<br>
Speaker: Hee Jung Kim (Binghamton University)<br>
<br>
Title: Twist-rim surgery and surfaces in 4-manifolds<br>
<br>
Abstract: In this talk, I will introduce a surgery operation referred to as<br>
'twist-rim surgery' to change embeddings of surfaces in 4-manifolds. This<br>
surgery is a modification of the rim surgery introduced by Fintushel-Stern<br>
and provides 'exotic' knotted surfaces in a 4-manifold: surfaces whose<br>
embeddings are homeomorphic but not diffeomorphic. Twist-rim surgery has<br>
been applied to knotting algebraic curves in CP^2 and led to solve the<br>
problem 4.110 in the classic Kirby Problem List, namely finding surfaces<br>
in CP^2 that are homologous to smooth algebraic curves (called degree<br>
d-curve),but are not smoothly isotopic to them.<br>
</div>
</blockquote></div><br>