19 Apr 2018
(PDF) |
Tiling Algorithms
Phylanx Year 2 Kickoff Meeting, LSU Center for Computation and Technology, Baton Rouge, Louisiana, United States. |
14 Apr 2018
(PDF) |
Working with Templates
AMS Spring Southeastern Sectional Meeting, Special Session on Matroids and Related Structures, Nashville, Tennessee, United States. |
02 Apr 2018
(PDF) |
A Stroll through Partial Fields
Combinatorics Seminar, Binghamton University, Binghamton, New York, United States. |
24 Aug 2017
(PDF) |
Connectivity and Tiling Algorithms
Phylanx Kickoff Meeting, LSU Center for Computation and Technology, Baton Rouge, Louisiana, United States. |
15 Aug 2017
(PDF) |
Templates for classes of representable matroids
Third Pacific Rim Mathematical Association (PRIMA) Congress, Oaxaca, Mexico. |
29 Jul 2016
(PDF) |
Minor-closed classes of error-correcting codes
International Workshop on Structure in Graphs and Matroids, Eindhoven, Netherlands. |
6 Jun 2016
(PDF) |
When matroids are highly connected
SIAM Conference on Discrete Mathematics, Atlanta, Georgia, United States. |
14 Dec 2015
(PDF) |
Minor-closed classes have no asymptotically good codes
Geoff Whittle's 65th birthday conference, Wellington, New Zealand. |
4 Jun 2015
(PDF) |
Minor-closed classes have no asymptotically good codes
CanaDAM 2015, Saskatoon, Canada. |
2 Mar 2015
(PDF) |
Asymptotically Good Codes
46th Southeastern International Conference on
Combinatorics, Graph Theory, and Computing, Boca Raton, FL, United States |
1 Dec 2014
(PDF) |
Beyond Total Unimodularity (invited speaker)
38th ACCMCC, Wellington, New Zealand |
19 Nov 2014
(PDF) |
Connectivity in graphs and matroids
Combinatorics seminar, LSU, Baton Rouge, LA, United States |
27 Mar 2014
(PDF) |
Beyond Total Unimodularity
Louisiana State University, Baton Rouge, LA, United States |
12 Feb 2014
(PDF) |
Beyond Total Unimodularity
University of Colorado Denver |
4 Dec 2013
(PDF) |
Connectivity in Graphs and Matroids
Mathematics Research Meeting, Lafayette College, Easton, PA, United States |
18 Sep 2013
(PDF) |
Connectivity in Graphs and Matroids
Princeton University Math Club Undergraduate Colloquium, Princeton, NJ, United States |
6 Sep 2013
(PDF) |
Connectivity in Graphs and Matroids
STEAM-H Seminar, Virginia State University, Petersburg, VA, United States |
24 Jun 2013
(PDF)
(Sage Worksheet) |
Sage and Matroids: the story so far
Matroid Computation meeting at "Centre de Recherche Les Moutons Matheux", La Vacquerie, France |
20 May 2013
(PDF) |
Connectivity in Graphs and Matroids
Women and Mathematics, Princeton Day, Princeton, NJ, United States |
12 Mar 2013
(PDF) |
Beyond Total Unimodularity
Combinatorics Seminar, Binghamton University, NY, United States |
2 Mar 2013
(PDF) |
On Inequivalent Representations
AMS Sectional Meeting, Special Session on Connections between Matroids, Graphs, and Geometry, Oxford, MS, United States |
31 Jul 2012
(PDF) |
Matroid computation in Sage
Third Workshop on Graphs and Matroids, Maastricht, The Netherlands |
1 Jun 2012
(PDF) |
The structure of graphs with a vital linkage of order 2
International Conference on Cycles in Graphs, Vanderbilt University, Nashville, TN, United States |
27 Mar 2012
(PDF) |
Beyond Total Unimodularity
New York Combinatorics Seminar, CUNY, United States |
17 Mar 2012
|
Menger's Theorem for Matroids, Doubled (blackboard talk)
AMS Sectional Meeting, Special Session on Matroid Theory, Washington, DC, United States |
24 Jan 2012
(PDF) |
Beyond Total Unimodularity
Discrete math seminar, Rutgers University, New Brunswick, United States |
27 Oct 2011
(PDF) |
Beyond Total Unimodularity
Discrete math seminar, Princeton University, United States |
11 Oct 2011
(PDF) |
Fragility in matroid theory
Discrete math seminar, Columbia University, New York, United States |
26 Jun 2011
(PDF) |
The relative importance of excluded minors
Matroid Computation meeting at "Centre de Recherche Les Moutons Matheux", La Vacquerie, France |
23 Jun 2011
|
Discussion and demo: matroid theory in Sage (together with Rudi Pendavingh)
Matroid Computation meeting at "Centre de Recherche Les Moutons Matheux", La Vacquerie, France |
27 May 2011
(PDF) |
Fragility in Matroid Theory
DIAMANT Symposium, Heeze, The Netherlands |
4 May 2011
(PDF) |
Beyond total unimodularity
EIDMA Seminar, Eindhoven University of Technology, The Netherlands |
16 Feb 2011
(PDF) |
Beyond total unimodularity
Operations Research Seminar, Maastricht University, The Netherlands |
12 Jan 2011
(PDF) |
Preserving 3-connectivity in matroids of high branch width
TACO day (workshop on Treewidth And Combinatorial Optimization), Utrecht, The Netherlands |
9 Jan 2011
(PDF) |
When the branch width is high...
Joint Mathematics Meetings, AMS Special Session on Structure Theory for Matroids and Graphs, New Orleans, Louisiana, United States |
3 Dec 2010
(PDF) |
Towards Computing the excluded minors for GF(5)
Workshop on Matroids and Computation, Wellington, New Zealand |
5 Aug 2010
(PDF) |
Towards Rota's Conjecture for GF(5)
Second Workshop on Graphs and Matroids, Maastricht, The Netherlands |
15 Jun 2010
(PDF) |
Stability, Fragility, and Rota's Conjecture
SIAM Conference on Discrete Mathematics, Austin, Texas, United States |
4 Jun 2010
(PDF) |
Sphere Packing with SDP
Tutte Seminar, University of Waterloo, Canada |
27 Mar 2010
(PDF) |
Representing Some Non-representable Matroids
AMS Sectional Meeting, Lexington, Kentucky, United States |
15 Jan 2010
(PDF) |
How to show it doesn't fit?
Mathematics Colloquium, Wright State University, Dayton, Ohio, United States |
13 Jan 2010
(PDF) |
Generalizing Seymour's Decomposition Theorem:
hopes and fears
Discrete Mathematics Seminar, Wright State University, Dayton, Ohio, United States |
9 Oct 2009
(PDF) |
Representing Some Non-representable Matroids
Tutte Seminar, University of Waterloo, Canada |
31 Aug 2009
(PDF) |
Partial Fields in Matroid Theory
PhD defense, 10-minute presentation (in Dutch) |
12 Jun 2009
(PDF) |
Partial Fields and Rota's Conjecture
Seminar on Incidence Geometry, Ghent University, Belgium |
16 Apr 2009
(PDF) |
Laten zien dat het niet past / How to show it doesn't fit
Winning talk for the Philips Mathematics Award, Nederlands Mathematisch Congres, Groningen (Abstract in Dutch) |
23 Oct 2008
(PDF) |
Cross-ratios in partial fields
Victoria University of Wellington, New Zealand |
20 Jul 2008
(PDF) |
Confinement to sub-partial fields
The Netherlands Workshop on Graphs and Matroids, Sittard |
21 May 2008
(PDF) |
Universal representations of matroids
EIDMA Seminar Combinatorial Theory, Eindhoven |
29 Nov 2007
(PDF) |
A stroll through partial fields
DIAMANT/EIDMA symposium, Soesterberg, The Netherlands |
16 Aug 2007
(PDF) |
New Korkin-Zolotarev inequalities
International Conference on Continuous Optimization (ICCOPT II), Hamilton, Canada, invited presentation |
18 Jun 2008
(PDF) |
Poster: New Korkin-Zolotarev inequalities
C&O@40, 40th birthday of the department of Combinatorics and Optimization, University of Waterloo, Canada |
19 Jun 2006
|
New Korkin-Zolotarev inequalities
Oberseminar des Institutes für Algebra und Geometrie, Otto-von-Guericke-Universität Magdeburg, Germany |
28 Apr 2006
|
A semidefinite programming relaxation of the space of Korkin-Zolotarev reduced lattice bases
CWI-DIAMANT Seminar Combinatorics and Optimization, Amsterdam, The Netherlands |
25 Nov 2005
|
The reduction domain of Korkine and Zolotarev
Sphere Packings: Exceptional Geometric Structures and Connections to other Fields, Oberwolfach, Germany |
16 Nov 2005
|
Properties of Lattices: a Semidefinite Programming Approach
DIAMANT/EIDMA Symposium, Mierlo, The Netherlands |
| Other attended conferences |
| 17-21 Jul 2017 |
SiGMa: Structure in Graphs and Matroids (as organizer) |
| 21-25 Jul 2014 |
2014 International Workshop on Structure in Graphs and Matroids (as organizer) |
| 7 - 11 May 2009 |
DIMACS Workshop on Graph Colouring and Structure |
| 14 - 18 Jul 2008 |
5th European Congress of Mathematicians |
| 29 - 30 May 2008 |
DIAMANT/EIDMA Symposium Oegstgeest, The Netherlands |
| 21 - 27 Oct 2008 |
ADONET-CIRM School on Graphs and Algorithms |
| 31 May - 1 Jun 2007 |
DIAMANT/EIDMA Symposium, Heeze, The Netherlands |
| 16 - 18 Jan 2007 |
32nd Conference on the Mathematics of Operations Research, Lunteren, The Netherlands |
| 30 Nov - 1 Dec 2006 |
DIAMANT/EIDMA Symposium, Vught, The Netherlands |
| 17 - 19 Jan 2006 |
31st Conference on the Mathematics of Operations Research, Lunteren, The Netherlands |
| 10 - 15 Jul 2006 |
Sixth Czech-Slovak International Symposium
on Combinatorics, Graph Theory, Algorithms and Applications |
| 12 - 16 Sep 2005 |
ADONET Doctoral School on Optimization over Polynomials and Semidefinite Programming |