<br><div class="gmail_quote"> BINGHAMTON GEOMETRY/TOPOLOGY SEMINAR<br><br>This week, we will have our second lecturer in our <b>Dean's Speaker Series in Geometry and Topology</b>, Igor Mineyev of University of Illinois at Urbana-Champaign.<br>
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<br><i>Date:</i> Thursday, Dec 1, 2011<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>
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<i>Speaker:</i> Igor Mineyev (University of Illinois at Urbana-Champaign)<br><i>Title:</i> Submultiplicativity and the Hanna Neumann Conjecture<br><i></i><i><br>Abstract:<br></i>We will present a proof of the Strengthened Hanna Neumann Conjecture
(SHNC), and some more general results. We will mention trees, forests,
flowers, gardens, and leafages. Submultiplicativity is a generalization of
the statement of SHNC from graphs to complexes, and from free groups to
more general groups. Submultiplicativity holds for complexes under an
additional assumption: the deep-fall property. This property is related
to the Atiyah Conjecture, a problem from analysis.
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