<div dir="ltr">For those interested: tomorrow I'm giving a follow-up to my Algebra seminar talk of 2 weeks ago<br><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">---------- Forwarded message ---------<br>From: <b class="gmail_sendername" dir="auto">Alex Feingold</b> <span dir="auto"><<a href="mailto:alex@math.binghamton.edu">alex@math.binghamton.edu</a>></span><br>Date: Sun, Feb 20, 2022 at 12:19 PM<br>Subject: Algebra Seminar, Tuesday, Feb. 22, 2022, 2:50 PM in WH-100E<br>To: Algebra Seminar <<a href="mailto:algsem@math.binghamton.edu">algsem@math.binghamton.edu</a>><br></div><br><br>
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<b>If we have a normal semester, the seminar will meet
in-person on Tuesdays in room WH-100E at 2:50 p.m. <br>
There should be refreshments served at 4:00 in room WH-102. If
COVID causes us to change the plan, <br>
we would go back to having only zoom talks. Currently we are
required to use masks for all indoor campus <br>
events, so all speakers and attendees must wear masks in the
Algebra Seminar.<br>
<br>
</b>
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<li>
<div> <b>February 22</b><br>
<span style="color:blue;font-size:120%"> Daniel Studenmund
(Binghamton University) </span> <br>
<b><i>The profinite topology and related constructions,
part 2</i></b> <br>
<br>
<div style="width:90%">
<p> <b><i>Abstract</i></b>: We will briefly
review the definition of the profinite topology on a group
and the definition of the group of germs of automorphisms,
and give some examples. We then explain how this
topological language naturally appears in statements of 1)
Neukirch and Uchida about rigidity in Galois groups of
number fields, and 2) Bass–Milnor–Serre, and others, about
the congruence subgroup property of certain arithmetic
groups.
</p>
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</div>
</li>
</ul>
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<b></b>
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______________________________________________________
Professor Alex J. Feingold
Department of Mathematical Sciences
State University of New York
Binghamton, New York 13902-6000
Fax: 607-777-2450 (To Math Department)
Email: <a href="mailto:alex@math.binghamton.edu" target="_blank">alex@math.binghamton.edu</a>
Webpages: <a href="http://people.math.binghamton.edu/alex/" target="_blank">http://people.math.binghamton.edu/alex/</a>
______________________________________________________
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