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Seminar Schedule

To suggest a talk or to subscribe to the mailing list
please email: timhaga "at" math.uni-bremen.de
Note: times are meant sharp ('s.t.')

Talks

  • Computation of the Alexander Polynomial of Projective Plane Curves
    • Alexandru Dimca (Université Nice Sophia Antipolis)
      March 29, 2017, 10:30 am, MZH 7200 Click for the abstract
  • Toric Degenerations of Flag Varieties via Newton-Okounkov Bodies
    • Xin Fang (Universität Köln)
      March 16, 2017, 10:15 am, MZH 7200 Click for the abstract
  • Linear Degenerate Flag Varieties
    • Ghislain Fourier (Universität Hannover)
      March 15, 2017, 12:30 pm, MZH 7200 Click for the abstract
  • The Universal Family of Marked Poset Polytopes
    • Christoph Pegel (Universität Bremen)
      February 9, 2017, 1:00 pm, MZH 7200 Click for the abstract
  • Problems around hyperplane arrangements (Part 2)
    • Masahiko Yoshinaga (Universität Bremen)
      January 5, 2017, 10:15 am, MZH 7200 Click for the abstract
  • Abelian Tropical Geometry II
    • Paul Helminck (Universität Bremen)
      December 22, 2016, 12:30 pm, MZH 7200 Click for the abstract
  • Problems around hyperplane arrangements (Part 1)
    • Masahiko Yoshinaga (Universität Bremen)
      December 22, 2016, 10:15 am, MZH 7200 Click for the abstract
  • Das Ehrhartpolynom von Gitterpolytopen
    • Christopher de Vries (Universität Bremen)
      December 13, 2016, 9:00 am, MZH 7260
  • Hyperplane arrangements and Hessenberg varieties
    • Takuro Abe (Kyushu University, Japan)
      December 8, 2016, 12:30 pm, MZH 7200
  • Abelian Tropical Geometry
    • Paul Helminck (Universität Bremen)
      November 22, 2016, 10:30 am, MZH 7200 Click for the abstract
  • The Degree of SO(n)
    • Madeline Brandt (UC Berkeley/ MPI Leipzig)
      November 22, 2016, 9:00 am, MZH 7200 Click for the abstract
  • Marked Order Polyhedra III: Facets, Minkowski Sums and a Subdivision
    • Christoph Pegel (Universität Bremen)
      October 13, 2016, 10:00 am, MZH 7200 Click for the abstract
  • Marked Order Polyhedra II: Face Structure and Geometry of Marked Order Polyhedra
    • Christoph Pegel (Universität Bremen)
      September 23, 2016, 1:00 pm, MZH 7200 Click for the abstract
  • Marked Order Polyhedra I: Polytopes in Order Theory, Representation Theory and Finite Frame Theory
    • Christoph Pegel (Universität Bremen)
      September 23, 2016, 10:30 am, MZH 7200 Click for the abstract
  • Higher Topological Complexity
    • Kai Renken (Universität Bremen)
      September 22, 2016, 10:00 am, MZH 7200 Click for the abstract
  • Broken Circuit Complexes and Hyperplane Arrangements
    • Alexander Nover (Universität Bremen)
      August 30, 2016, 2:00 pm, MZH 7200
  • Model reduction of biological and chemical networks using methods from tropical geometry
    • Andreas Weber (Universität Bonn)
      August 30, 2016, 10:15 am, MZH 7200
  • Freeness of (Multi-)Arrangements and Characteristic Polynomials (Part 2)
    • Erik Hanke (Universität Bremen)
      August 18, 2016, 10:15 am, MZH 7200
  • Freeness of (Multi-)Arrangements and Characteristic Polynomials
    • Erik Hanke (Universität Bremen)
      August 4, 2016, 10:15 am, MZH 7200 Click for the abstract
  • Der Satz von Eagon-Reiner
    • Lena Ranke (Universität Bremen)
      August 1, 2016, 10:15 am, MZH 7200 Click for the abstract
  • Serre's property FA
    • Luisa Peter (Universität Bremen)
      July 7, 2016, 10:15 am, MZH 7200
  • A nullstellensatz for rings of global real analytic functions
    • Francesca Acquistapace, Fabrizio Broglia (University of Pisa)
      June 30, 2016, 10:15 am, MZH 7200
  • The real Grassmanian as a CW Complex
    • Tim Lindemann (Universität Bremen)
      June 27, 2016, 10:15 am, MZH 7200 Click for the abstract
  • Das Wortproblem in Baumslag-Solitar-Gruppen
    • Bino Nolting (Universität Bremen)
      June 20, 2016, 10:15 am, MZH 7200 Click for the abstract
  • Die Bruhat-Ordnung
    • Jana Larisch (Universität Bremen)
      June 13, 2016, 10:15 am, MZH 7200 Click for the abstract
  • Non realizability of uniform phased matroids
    • Elia Saini (Université de Fribourg)
      April 4, 2016, 10:15 am, MZH 7200
  • Modeling Adversaries as Iterated Tasks
    • Thibault Rieutord (Paris)
      March 31, 2016, 1:00 pm, MZH 7200 Click for the abstract
  • An introduction to topological complexity
    • Kai Renken (Universität Bremen)
      March 31, 2016, 10:15 am, MZH 7200
  • On tropical Igusa invariants
    • Paul Helminck (Rijksuniversiteit Groningen)
      February 10, 2016, 12:30 pm, MZH 1110
  • Gröbnerfächer
    • Erdal Acar (Universität Bremen)
      February 4, 2016, 12:30 pm, MZH 7200 Click for the abstract
  • Sample Theory: Lineare Algebra als Lückenfüller
    • Tim Lindemann (Universität Bremen)
      January 21, 2016, 12:30 pm, MZH 7200 Click for the abstract
  • Milnor fibers and monodromy
    • Pauline Bailet (Universität Bremen)
      January 14, 2016, 12:30 pm, MZH 7200 Click for the abstract
  • Introduction to hyperplane arrangements
    • Pauline Bailet (Universität Bremen)
      January 13, 2016, 12:30 pm, MZH 7200 Click for the abstract
  • A probabilistic algorithm for computing data-discriminant of likelihood equations
    • Xiaoxian Tang (Universität Bremen)
      December 17, 2015, 12:15 pm, MZH 7200 Click for the abstract
  • Landau Singularities of Feynman Diagrams
    • Isabella Bierenbaum (HU Berlin)
      September 30, 2015, 2:45 pm, MZH 7200
  • Wonderful compactifications in Quantum Field Theory
    • Marko Berghoff (HU Berlin)
      September 30, 2015, 1:30 pm, MZH 7200
  • Linkages and polygon spaces
    • Kai Renken (Universität Bremen)
      September 17, 2015, 12:15 pm, MZH 7200
  • Nestohedra associated with root systems
    • Eleonora Galassi (Università di Pisa)
      September 9, 2015, 10:15 am, MZH 7200
  • A computational method for topological classification of global dynamics
    • Paweł Pilarczyk (IST Austria)
      August 13, 2015, 1:00 pm, MZH 7260 Click for the abstract
  • Expander graphs
    • Roy Meshulam (Technion, Haifa, Israel)
      August 4, 2015, 2:00 pm, MZH 7200
  • SAT-based verification of graph transformation units
    • Marcus Ermler (Universität Bremen)
      July 2, 2015, 10:15 am, MZH 7200
  • Distributed computing II: models and calculability
    • Damien Imbs (Universität Bremen)
      March 26, 2015, 10:30 am, MZH 7200
  • Milnor fibers of real line arrangements
    • Masahiko Yoshinaga (Hokkaido)
      March 25, 2015, 10:30 am, MZH 7200 Click for the abstract
  • Big polygon spaces
    • Matthias Franz
      January 8, 2015, 12:10 pm, MZH 7200 Click for the abstract
  • What is... Distributed Computing?
    • Damien Imbs (Universität Bremen)
      December 18, 2014, 12:10 pm, MZH 7200
  • What is... Tropical Geometry? (Part 2)
    • Kirsten Schmitz (Universität Bremen)
      December 11, 2014, 12:20 pm, MZH 7200
  • What is... Tropical Geometry?
    • Kirsten Schmitz (Universität Bremen)
      December 4, 2014, 12:10 pm, MZH 7200
  • What is... A Spectral Sequence?
    • Viktoriya Ozornova (Universität Bremen)
      November 20, 2014, 12:10 pm, MZH 7200
  • What is... Matroid Theory? (extended)
    • Martin Burger (Universität Bremen)
      November 13, 2014, 12:00 pm, MZH 7200
  • What is... Matroid Theory?
    • Christoph Pegel (Universität Bremen)
      October 30, 2014, 12:00 pm, MZH 7200
  • Homotopy Theory of Categories
    • Viktoriya Ozornova (Universität Bremen)
      October 8, 2014, 10:15 am, MZH 7200
  • Combinatorial Invariants of Toric Arrangements
    • Sonja Riedel (Universität Bremen)
      July 29, 2014, 10:20 am, MZH 7200
  • Phasing classes of matroids
    • Elia Saini (Universität Bremen)
      July 29, 2014, 9:00 am, MZH 7200
  • An Equivariant Patchwork Theorem
    • Ralf Donau
      July 24, 2014, 10:30 am, MZH 7200.
  • ALTA Bachelor Seminar
    • ALTA Bachelor Students
      July 23, 2014, 9:30 am, MZH 7200.
  • Stable Homotopy Theory: An Introduction
    • Lennart Meier (University of Virginia, USA)
      June 26, 2014, 10:15 am, MZH 7200.
  • Matching trees on simplicial complexes and some splitting results
    • Demet Taylan (Universität Bremen)
      June 19, 2014, 10:15 am, MZH 7200.
  • A cofibrantly generated model structure on the category of small acyclic categories
    • Roman Bruckner (Universität Bremen)
      June 5, 2014, 11:00 am, MZH 7200.
  • Combinatorial stratifications of complex arrangements
    • Jan-Philipp Litza
      April 15, 2014, 1:00 pm, MZH 7200.
  • Weak symmetry breaking and abstract simplicial paths
    • Dmitry Feichtner-Kozlov (Universität Bremen)
      April 14, 2014, 10:15 am, MZH 7200.
  • Cluster algebras, part II
    • Tim Haga (Universität Bremen)
      April 7, 2014, 10:15 am, MZH 7200
  • A crash course on toric varieties, II
    • Christoph Pegel
      April 2, 2014, 1:00 pm, MZH 7200.
  • Cluster algebras
    • Tim Haga (Universität Bremen)
      March 31, 2014, 10:15 am, MZH 7200.
  • Cohomology of arrangements
    • Lasse Paetz
      March 25, 2014, 10:15 am, MZH 7200.
  • Zonotopes and production theory
    • Simona Settepanella (Hokkaido University, Japan/ Scuola Superiore Sant'Anna, Italy)
      February 13, 2014, 10:00 am, MZH 6240
  • (Hilbert Space) Frames meet Algebraic Geometry
    • Emily King (Universität Bremen)
      February 5, 2014, 10:15 am, MZH 6240
  • Homotopy theory of posets
    • George Raptis (Universität Osnabrueck)
      February 4, 2014, 2:15 pm, MZH 2340
  • A crash course on toric varieties, I
    • Christoph Pegel
      January 8, 2014, 10:15 am, MZH 6240
  • Approximate Hermitian-Yang-Mills structures on semistable Higgs bundles
    • Elia Saini (SISSA Trieste)
      November 19, 2013, 10:30 am, MZH 3150
  • Combinatorics of Buchsbaum modules and applications to Upper bound theorems and isoperimetry.
    • Karim Adiprasito (IHÉS, Bures-sur-Yvette)
      November 13, 2013, 11:00 am, MZH 6340 Click for the abstract
  • Farkas'Lemma,Das Spiel ``Shapley''
    • Angelina Degner, Wienke Menges
      July 3, 2013, 10:45 am, MZH 6340 Click for the abstract
  • Topology of random 2-dimensional complexes
    • Jean-Marie Droz
      February 28, 2013, 10:00 am, MZH 2490
  • continuation: an inequality with applications to thresholds and percolation
    • Christian Bey
      February 21, 2013, 10:00 am, MZH 2490
  • Zero-one laws for graph properties (Part II)
    • Sonja Riedel
      February 14, 2013, 10:00 am, MZH 2490
  • continuation: An inequality with application to thresholds and precolation
    • Christian Bey
      January 31, 2013, 10:00 am, MZH 2490
  • Zero-one laws for graph properties
    • Sonja Riedel
      January 24, 2013, 10:00 am, MZH 2490
  • An inequality involving degrees of hypergraphs, with applications to expansion, thresholds and percolation (Part II)
    • Christian Bey
      January 17, 2013, 10:00 am, MZH 2490
  • The classification of covering spaces
    • Lasse Paetz
      January 15, 2013, 10:15 am, MZH 7050
  • An inequality involving degrees of hypergraphs, with applications to expansion, thresholds and percolation
    • Christian Bey
      January 10, 2013, 10:00 am, MZH 2490
  • Introduction to random graphs, Part 3
    • Martin Dlugosch
      December 20, 2012, 10:00 am, MZH 2490
  • Introduction to random graphs, thresholds for connectivity
    • Michał Adamaszek
      December 13, 2012, 10:00 am, MZH 2490
  • Introduction to random graphs, part I.
    • Jean-Marie Droz
      December 6, 2012, 10:00 am, MZH 2490 Click for the abstract
  • Expansion properties for simplicial complexes.
    • Anna Gundert (ETHZ)
      December 4, 2012, 10:00 am, MZH 7050 Click for the abstract
  • Decomposition complexes
    • Martin Dlugosch (Universität Bremen)
      November 28, 2012, 10:30 am, MZH 7050 Click for the abstract
  • Extended persistence.
    • Jan-Philipp Litza
      August 1, 2012, 11:00 am, MZH 7050 Click for the abstract
  • Äquivariante Kohomologie und Syzygien.
    • Matthias Franz, U Western Ontario
      July 25, 2012, 11:00 am, MZH 7050 Click for the abstract
  • Brylawski's conjecture and the arithmetic Tutte polynomial.
  • Consistent scale selection for exploratory visualization and analysis of data sets.
    • Daniel Müllner, Stanford U.
      July 11, 2012, 1:00 pm, MZH 7050 Click for the abstract
  • Chain complexes.
    • Gerrit Grenzebach.
      June 28, 2012, 9:00 am, MZH 7050 Click for the abstract
  • Infinite graphs and matroids.
    • Johannes Carmesin, Uni Hamburg.
      June 20, 2012, 11:00 am, MZH 7050 Click for the abstract
  • Open Problems.
    • Jean-Marie Droz, Emanuele Delucchi.
      June 13, 2012, 11:00 am, MZH 7050 Click for the abstract
  • Topological Representation of Tropical Oriented Matroids.
    • Dr. Silke Horn, TU Darmstadt.
      June 6, 2012, 11:00 am, MZH 7050 Click for the abstract
  • Critical points of master functions.
    • Prof. Dr. Michael Falk, Northern Arizona University
      May 22, 2012, 4:15 pm, MZH 1090
  • Partition functions, toric arrangements, and arithmetic matroids.
    • Dr. Luca Moci, Università di Roma 1 ``La Sapienza''
      May 8, 2012, 4:15 pm, MZH 1090
  • F1: a mathematical object in search of a definition.
    • Prof. Dr. Yuri Manin, Direktor MPI Mathematik, Bonn
      May 8, 2012, 12:15 pm,
  • Mathematics as a Toolkit: From Models to Data Mining.
    • Prof. Dr. Yuri Manin, Direktor des MPI Mathematik, Bonn
      May 7, 2012, 7:30 pm, Olbers Saal, Haus der Wissenschaft
  • Arithmetische Matroide: Grundlagen und Dualität.
    • Lasse Paetz, Uni Bremen
      April 18, 2012, 11:00 am, MZH 7050 Click for the abstract
  • Constructing a tropical linear monoid (part 2).
    • Bart Frenk, TU Eindhoven
      March 28, 2012, 11:00 am, MZH 7200 Click for the abstract

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