Claremont Topology Seminar

Founded 1989


The Claremont Topology Seminar meets on Tuesday's from 3:00-4:00 pm in Millikan 2099, Pomona College. Millikan is located on the NE corner of College Avenue and 6th Street. Following the talk we go for coffee/tea in downtown Claremont. Sometimes we meet a little later and then go to dinner. (Look for special times on the calendar.) Click here for a map of the Pomona Campus.

To reach Pomona College from the 10 freeway, exit at Indian Hill, go north, turn right (east) on 6th street and then turn left (north) on College. To reach Pomona College from the 210 freeway, if traveling East, exit at Towne Avenue, turn right (south) on Towne, turn left (east) on Foothill Blvd, and turn right (south) onto College Avenue. If traveling West on the 210 freeway, exit at Baseline/Padua, turn right (west) onto Baseline, turn left (south) onto Padua at the first light, turn right (west) onto Foothill Blvd at the third light, turn left (south) onto College Avenue.

Parking on College Avenue is free.

For more information about the Seminar, or to suggest speakers, contact Jim Hoste , Dave Bachman , Sam Nelson , Erica Flapan or Vin de Silva.


2016-17 Schedule


Fall, 2016

special days, times or locations are in red

Date Speaker Title and Abstract
Tuesday

Sept 6

3:00 pm

Organizational Meeting Meet at Some Crust Bakery for organizational meeting.
Tuesday

Sept 13

3:00 pm

Christopher Tuffley

Massey University Manawatu

Title: Intrinsic linking in higher dimensions, and with linking numbers divisible by q.

Abstract: In 1983 Conway and Gordon proved that every embedding of the complete graph K_6 in 3-space contains a pair of disjoint cycles that form a non-separable link --- a fact that is expressed by saying K_6 is intrinsically linked. Since then, a number of authors have shown that embeddings of larger complete graphs necessarily exhibit more complicated linking behaviour, such as links with many components and/or large pairwise linking numbers.

With some adaptions to the proofs, similar results can be established for embeddings of large n-complexes in (2n+1)-space. We will look at some of the adaptions required, in the context of proving the existence of two component links with linking number a nonzero multiple of a given integer q. In the course of this we will obtain an improved bound for n greater than or equal to 1 on the number of vertices needed to force a two component link with linking number at least q in absolute value.

Tuesday

Sept 20

3:00 pm

Catherine Pfaff

UC Santa Barbara

Title: When Outer Space behaves like Teichmuller space (or hyperbolic spaces) & how we can use this to understand Out(F_n)

Abstract: Out(F_n) is one of the most intriguing groups to study because of its natural action on a space, Culler-Vogtmann Outer Space, which both strongly resembles and intricately differs from some of the most well-known and studied spaces, such as Teichmuller space and hyperbolic spaces. In this talk I will present several dynamical results about when Outer Space behaves like these other spaces and explain how we have used them to help understand Out(F_n). This is joint work with Yael Algom-Kfir, Ilya Kapovich, and Lee Mosher.

Tuesday

Sept 27

3:00 pm

Tuesday

Oct 4

3:00 pm

Jieon Kim

Osaka City University

Tuesday

Oct 11

3:00 pm

Brittany Fasy

Montana State University

Tuesday

Oct 18

No Meeting Fall Break
Tuesday

Oct 25

3:00 pm

Amanda Curtis

UC Santa Barbara

Tuesday

Nov 1

3:00 pm

Lou Kauffman

Univ. Illinois, Chicago

Title: Intoduction to Knotoids and Invariants of Knotoids via Combinatorial Knot Theory
Tuesday

Nov 8

3:00 pm

Tuesday

Nov 15

3:00 pm

Tuesday

Nov 22

3:00 pm

Tuesday

Nov 29

3:00 pm

Kanako Oshiro

Sophia University

Tuesday

Dec 6

3:00 pm


Spring 2017 Schedule

special days, times or locations are in red

Date Speaker Title and Abstract
Tuesday

Jan 24

3:00 pm

Tuesday

Jan 31

3:00 pm

Tuesday

Feb 7

3:00 pm

Tuesday

Feb 14

3:00 pm

Tuesday

Feb 21

3:00 pm

Tuesday

Feb 28

3:00 pm

Tuesday

Mar 7

3:00 pm

Tuesday

Mar 14

No Meeting Spring Break
Tuesday

Mar 21

3:00 pm

Tuesday

Mar 28

3:00 pm

Tuesday

Apr 4

3:00 pm

Tuesday

Apr 11

3:00 pm

Tuesday

Apr 18

3:00 pm

Tuesday

Apr 25

3:00 pm

Tuesday

May 2

3:00 pm



Archived Schedules

2015-2016

2014-2015

2013-2014

2012-2013

2011-2012

2010-2011

2009-2010

2008-2009

2007-2008

2006-2007

2005-2006

2004-2005

2003-2004