[Binghamton Geometry/Topology Seminar] Geometry/Topology Seminar

Ross Geoghegan ross at math.binghamton.edu
Mon Oct 10 14:15:09 EDT 2016


Steve Ferry is Distinguished Professor Emeritus. He left Binghaton 
with Emeritus status and took a named chair at Rutgers. Now retired from 
Rutgers he has more or less returned to Binghamton. Being emeritus I guess 
he wasn't listed.

Ross


On Mon, 10 Oct 2016, BU Dateline wrote:

> We can't find him in the University's directory. What is his position at
> Binghamton?
> 
> On Mon, Oct 10, 2016 at 12:43 PM, Christoforos Neofytidis
> <chrisneo at math.binghamton.edu> wrote:
>       BINGHAMTON GEOMETRY/TOPOLOGY SEMINAR
>
>          Date: Thursday, October 13th, 2016
>
>          Time: 2.50 pm
>
>          Place: Whitney Hall, Room 100E
>
>          Speaker: Steve Ferry (SUNY at Binghamton and Rutgers University)
>
>          Title: Distance functions, data, and comparison geometry
>
>       Abstract: We show that there are homotopy equivalences $h:N\to M$
>       between
>       closed manifolds which are induced by cell-like maps $p:N\to X$ and
>       $q:M\to X$ but which are not homotopic to homeomorphisms.  The
>       phenomenon
>       is based on construction of cell-like maps that kill certain
>       $\bL$-classes. The image space in these constructions is necessarily
>       infinite-dimensional. In dimension $>6$ we classify all such
>       homotopy
>       equivalences. As an application, we show that such homotopy
>       equivalences
>       are realized by deformations of Riemannian manifolds in
>       Gromov-Hausdorff
>       space preserving a contractibility function, an observation that has
>       consequences in topological data analysis.
>
>       NOTE:  The seminar has a webpage where the semester's program is
>       listed:
>
>       http://www2.math.binghamton.edu/p/seminars/topsem
>       _______________________________________________
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>       topsem at math.binghamton.edu
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> 
> 
> 
>


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