<div><br /></div>
<div>Hi everyone,</div>
<div><br /></div>
<div>I thought it would be nice to have coffee with our speaker this
Thursday from 12:30 - 1:30. We'll meet on zoom here:<br /></div>
<div>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0;
text-indent:0px;">https://binghamton.zoom.us/j/96674397432</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;">Meeting ID: 966
7439 7432</p>
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margin-right:0px; -qt-block-indent:0; text-indent:0px;"><br /></p>
<style type="text/css">
p, li { white-space: pre-wrap; }</style> Grad students are especially
encouraged to attend!</div>
<div><br /></div>
<div>Best,</div>
<div>Jenya Sapir<br /></div>
<br />
<div style="" data-zbluepencil-ignore="true" class="zmail_extra"><br />
<div id="Zm-_Id_-Sgn1">---- On Fri, 04 Sep 2020 13:09:01 -0400
<strong>Matthew R Haulmark <haulmark@binghamton.edu></strong> wrote
----<br /></div>
<br /><blockquote style="border-left: 1px solid rgb(204, 204, 204);
padding-left: 6px; margin: 0px 0px 0px 5px;">
<div>
<div dir="ltr">
<div>Hi everyone,<br /></div>
<div><br /></div>
<div>Next week on Thursday we will have our first online seminar talk. Our
speaker will be Abdul Zalloum of Queen's University.<br /></div>
<div><br /></div>
<div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;color:
rgb(0,0,0);"><em><span class="size" style="font-size:13px">Title:
Hyperbolic-like boundaries of non-hyperbolic spaces.</span></em><br
/></div>
<em><span class="size" style="font-size:13px"></span></em>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;color:
rgb(0,0,0);"><em><span class="size" style="font-size:13px"><span
class="highlight" style="background-color:rgb(255, 255, 255)"><span
class="font" style="font-family: Calibri, Arial, Helvetica, sans-serif;
display: inline;"><br /></span></span></span></em></div>
<em><span class="size" style="font-size:13px"></span></em>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;color:
rgb(0,0,0);"><em><span class="size" style="font-size:13px"><span
class="highlight" style="background-color:rgb(255, 255, 255)"><span
class="font" style="font-family: Calibri, Arial, Helvetica, sans-serif;
display: inline;">Abstract:  While a quasi-isometry between two hyperbolic
spaces X,Y induces a  homeomorphism between their respective Gromov
boundaries,  the conclusion fails if X,Y are replaced by cocompact CAT(0)
spaces.  This has motivated a bulk of recent work introducing
"hyperbolic-like"  boundaries for CAT(0) spaces, and more
generally, for proper geodesic  metric spaces. For a proper geodesic
metric space  X, instead of considering the collection
of<span> </span></span></span><strong style="font-family: Calibri,
Arial, Helvetica, sans-serif;background-color:
rgb(255,255,255);">all<span> </span></strong><span class="highlight"
style="background-color:rgb(255, 255, 255)"><span class="font"
style="font-family: Calibri, Arial, Helvetica, sans-serif; display:
inline;">geodesic  rays shooting to infinity, if you collect only
those</span></span><span class="highlight"
style="background-color:rgb(255, 255, 255)"><span class="font"
style="font-family: Calibri, Arial, Helvetica, sans-serif; margin:
0px;"> possessing  some "hyperbolic-like" behavior, you
obtain a boundary  which is invariant under-quasi isometries. I will
describe few such  boundaries along with the way they relate to each
other. Some of the  results I will mention are joint with Incerti-Medici
while others are  joint with Qing and
Murray."</span></span></span></em><br /></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;color:
rgb(0,0,0);"><em><span class="size" style="font-size:13px"><span
class="highlight" style="background-color:rgb(255, 255, 255)"><span
class="font" style="font-family: Calibri, Arial, Helvetica, sans-serif;
margin: 0px;"><br /></span></span></span></em></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;color:
rgb(0,0,0);"><span class="size" style="font-size:13px"><span
class="highlight" style="background-color:rgb(255, 255, 255)"><span
class="font" style="font-family: Calibri, Arial, Helvetica, sans-serif;
margin: 0px;">There  are still 4 open spots for speakers at the end of the
semester. If you  have any speakers that you would like to invite, you
encouraged to make  your suggestions <a
href="https://docs.google.com/forms/d/e/1FAIpQLSfiIX3KGqiiwzgzn72zMRc64yoaNEh4Sc7cHBD4amyZT-QvVA/viewform"
target="_blank">here</a>.<br /></span></span></span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;color:
rgb(0,0,0);"><span class="size" style="font-size:13px"><span
class="highlight" style="background-color:rgb(255, 255, 255)"><span
class="font" style="font-family: Calibri, Arial, Helvetica, sans-serif;
margin: 0px;"><br /></span></span></span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;color:
rgb(0,0,0);"><span class="size" style="font-size:13px"><span
class="highlight" style="background-color:rgb(255, 255, 255)"><span
class="font" style="font-family: Calibri, Arial, Helvetica, sans-serif;
margin: 0px;"></span></span></span><br /></div>
</div>
<div>I am looking forward to seeing you all next week!<br /></div>
<div><br /></div>
<div>Best,<br /></div>
<div><br /></div>
<div>Matt
<div class="x_-1448165919gmail-adL"><br /></div>
</div>
</div>
_______________________________________________<br />Seminar web page: <br
/><a href="http://www2.math.binghamton.edu/p/seminars/topsem"
target="_blank">http://www2.math.binghamton.edu/p/seminars/topsem</a> <br
/>topsem mailing list: <br /><a
href="http://www1.math.binghamton.edu/mailman/listinfo/topsem"
target="_blank">http://www1.math.binghamton.edu/mailman/listinfo/topsem</a></div>
</blockquote></div>