Stefan van Zwam's homepage - Talks

Or: where you may have met me. The PDF files, when present, contain the corresponding slides.

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