Workshop on Applied Algebra

TU Braunschweig, Germany, June 7-8, 2019


The aim of this workshop is to bring together different researchers in applied algebra, very broadly interpreted, from in and outside of Germany.
Simultaneously, this is a kick-off workshop of the new research group on Applied Algebra at the Department of Mathematics at the TU Braunschweig.


Confirmed Speakers

Poster Session

We will have a poster session on Friday afternoon giving early career researchers (master students, PhD students, and postdocs) the opportunity to present their work.

You can find the list of presenters for poster session below.

  • Felix Bestehorn (TU Braunschweig) - Switching Costs Made Easy - a Generic Combinatorial Framework for MIOCPs
  • Tobias Boege (OVGU Magdeburg) - Generic and Special Gaussoids
  • Alexander Cant (TU Braunschweig) - Dehn’s problems for finitely generated torsion-free nilpotent groups
  • Stephan Gardoll (Goethe-Universität Frankfurt) - Conic Stability of Polynomials and Positive Maps
  • Alexandros Grosdos (Universität Osnabrück) - Algebraic statistics of local Dirac mixture moments
  • Janin Heuer (TU Braunschweig) - Nullspace Conditions for Block-Sparse Recovery of Semidefinite Systems
  • Yuhan Jiang (UC Berkeley / MPI Leipzig) - Singularities and Genus of k-Ellipses
  • Helen Naumann (Goethe-Universität Frankfurt) - A Unified Framework of SAGE and SONC Polynomials and Its Duality Theory
  • Max Pfeffer (MPI Leipzig) - Learning Paths from Signature Tensors
  • Bernhard Reinke (Jacobs University, Bremen) - Iterated Monodromy Groups and Transcendental Dynamics
  • Henning Seidler (TU Braunschweig) - Lower Bounds via Circuit Polynomials
  • Isabelle Shankar (UC Berkeley / MPI Leipzig) - Sum-of-Squares Decomposition for Symmetric Polynomial Inequalities
  • Miruna-Ştefana Sorea (MPI Leipzig) - On the Non-Convexity of Real Algebraic Plane Curves Near a Strict Local Minimum
  • Bertrand Teguia Tabuguia (Kassel University) - Prime Numbers and Random Reproduction
  • Lorenzo Venturello (OVGU Magdeburg) - Graded Betti Numbers of Balanced Simplicial Complexes
  • Oguzhan Yürük (TU Braunschweig) - Initial Steps in the Classification of Maximal Mediated Sets


In order to register for the conference, please send an email to Oguzhan Yürük via yuruk(at) including:

  1. Your name and your affiliation,
  2. An indication whether you anticipate to attend the dinner on Friday evening,
  3. OPTIONAL: A notification, if you know that you will only attend on one day.
  4. OPTIONAL: Any diet restrictions in case that you would like to attend the dinner.
The conference does not have a fee. The dinner, however, which will take place at Sultana, a local restaurant, has to be paid by the participants (around 20 Euros plus drinks).
There is no deadline for registration, but we encourage an early registration, since we have limited space at the venue and the restaurant.

Preliminary Schedule

Friday, June 7
09:00-09:30 Registration and Welcome
09:30-10:30 Rekha Thomas
University of Washington, Seattle
Graph density inequalities and sums of squares.
10:30-11:00 Coffee break
11:00-11:45 Kathlén Kohn
University of Oslo
The adjoint of a polytope.
11:45-12:30 Mohamed Barakat
University of Siegen
Chevalley’s Theorem on constructible images made constructive.
12:30-14:30 Lunch
14:30-15:15 Bettina Eick
TU Braunschweig
Classification of groups of prime-power order.
15:15-16:00 Martina Juhnke-Kubitzke
University of Osnabrück
Squeezed complexes.
16:00-17:30 Coffee break and poster session
around 18:30 Dinner at Sultana
Saturday, June 8
09:30-10:15 Mateusz Michalek
MPI Leipzig
From topology to algebraic geometry and back again.
10:15-10:45 Coffee break
10:45-11:30 Noémie Combe
MPI Bonn
Will you draw me a complex polynomial?
11:30-12:15 Ellen Baake
University of Bielefeld
Solving the recombination equation.
12:15-14:15 Lunch
14:15-15:00 Gennadiy Averkov
OVGU Magdeburg
Optimal size of linear matrix inequalities in semidefinite approaches to polynomial optimization.
15:00-15:45 Philipp Jell
Georgia Tech / University of Regensburg
Tropicalization and analytification of semialgebraic sets
15:45-16:15 Coffee break
16:15-17:15 Dierk Schleicher
Jacobs University, Bremen
The Fundamental Theorem for Algebra: analytic, algorithmic, and algebraic aspects.

Local Information

This workshop will by hosted by the Department of Mathematics of the TU Braunschweig.
The venue for the workshop will be the Architekturpavillon at Pockelsstraße 4, 38106 Braunschweig.

How to reach to Architekturpavillon from Braunschweig Hbf

The Architekturpavillon is located in the Main Campus of TU Braunschweig. It can be accessed through Pockelsstraße 4 (Altgebäude). For the detailed location check the map of the Main Campus, where Architekturpavillon is shown with number 2.
In order to reach to Main Campus from Braunschweig Main Station, you can use the following public transport stops:

  • Tram 1, Tram 3: Mühlenpfordstraße
  • Bus 419: Pockelsstraße
If you are using another form of transportation, please check this link to the website of TU Braunschweig for more information.

Lunch/Dinner options around the venue

The cannonical choice for lunch is Mensa, which is located in Katharinestraße 1 (see number 10 on the campus map). Mensa is open on Saturdays and offers vegeterian and vegan options as well. You can find daily mealplan of Mensa here. For other options around the venue, see the list of restaurants below.

  • Falafeli, Wendenstraße 56: falafel & co, vegan and vegetarian options
  • Eusebia, Spielmannstraße 11: pizza, pasta & co
  • Bäcker Kappes, Gliesmaroder Straße 2: baked goods and snacks (on saturdays only open until 12.30)
  • Parco, Bültenweg 95: Pizza, pasta and baguettes, vegetarian options
  • Troja, Bültenweg 6: Turkish restaurant (open after 15:00)
  • Quartier, Bültenweg 89: Burgers, salads, baked potatoes
  • McMurphy's, Bültenweg 10: Irish pub


Here is a list of accomodations in Braunschweig. Since Braunschweig is of moderate size, the university can be reached by foot in maximally 20-25 minutes from all places. Public transportation is also available.

Two cheap options are: Options in the medium to high(er) price segment are:
  • Hotel FourSide, fully renovated and modern, in the city centre
  • Hotel Deutsches Haus, rather traditional, next to the cathedral, in the city centre
  • Pentahotel, not too far from the trains station, at the border of the old town
  • Frühlingshotel, at the border of the pedestrian area, a few metres further away from the university than the previous ones
  • Hotel Haus zur Hanse, relatively close to Frühlingshotel.


The support by the following organizations is gratefully acknowledged.

TU Braunschweig