SFB Workshop 2014 "SFB Days"

Being half way through our first funding period, this workshop will give a unique opportunity to present our scientific work with the results achieved in the projects of the SFB/Transregio "Discretization in Geometry and Dynamics" and to intensify our exchange about it.The workshop is structured as a varied program of presentations, enabling deeper insight into the research work of your colleagues, as well as a framework of free time in which discussions and exchange can develop.

  • Date: 21.09. - 26.09.2014
  • Type: Workshop
  • Location: TU Berlin, Dept. of Mathematics, Strasse des 17. Juni 136, 10623 Berlin

Scientific Organizers



Please find below the schedule for the „SFB-Days“. This workshop offers to all projects the opportunity to present their current state of research with their previous results.
The program lists all project numbers in their particular presentation time slots.

The length of the time slots is proportional to the number of auxiliary support staff in each project, resulting in ‚large’ and ‚regular’ slots.
‚Large’ projects get approx. 70 minutes presentation time plus additional discussion time (90 min slot). ‚Regular’ projects get approx. 40 minutes presentation time plus additional discussion time (45 min slot).
The projects are at liberty to structure their time slots as they find adequate.

Icon Download Program (134.9 KB)

SFB Days 2014 Science Presentation Schedule
Science Presentation Slots Monday, 22. Sep Tuesday, 23. Sep Wednesday, 24. Sep Thursday, 25. Sep
1) Slot  9:00-10:30 A01 B04 C01 A10 Fornasier
Coffee break I (30 min)
2) Slot 11:00-11:45 A02 B01 A03 A09
Lunch (60 min)
3) Slot 12:45-13:30 A04 B02 B06 A08
Short 10 min break
4) Slot 13:40-14:25 A05 B08 B07 B09
Coffee break II (35 min)
5) Slot 15:00-15:45 A07 B03 PR Social Evening
at 15:45     "Conform!" Movie (15min) Social Evening
Further slot 17:00   DGD Board
Room MA 875
DGD General Assembly
Room MA 041
Social Evening
General Information  
Large project presentations ca. 70 minutes + discussion
Regular project presentations ca. 40 minutes + discussion
All presentations in room MA 041



Presentation Titles

Discrete Uniformization of Riemann Surfaces (Boris Springborn, Alexander Bobenko)

On Discrete CMC Surfaces of Conical Type (Tim Hoffmann)

Realizations of Egg-Scribed Polytopes (Arnau Padrol)

Catmull-Clark Finite Elements and Minimal Surfaces (Konrad Polthier)

Schläfli Formulas (David Chubelaschwili)
Isothermic Triangulated Surfaces (Wai Yeung Lam)
Texture Coordinates via Discrete Hermitian Line Bundles (Felix Knöppel)

Discrete Morse Theory (Günter Rote)

Discrete Normal Congruences (Helmut Pottmann)
Supercyclidic Nets (Emanuel Huhnen-Venedey)

Laplace Operators on Semidiscrete Surfaces (Wolfgang Carl)

Classification and Analysis of Edges using Compactly Supported Shearlets (Philipp Petersen)
Geometric Multiscale Analysis for Surfaces and Functions on the Sphere (Wang-Q Lim)
Consistency of Probability Measure Quantization by means of Power Repulsion-Attraction Potentials (Massimo Fornasier)

Complex Tracing in Geometry (Jürgen Richter-Gebert, Stefan Kranich)

Integrable Discrete Line Complexes: Geometry and Algebra (Wolfgang Schief)

Numerical Riemann-Hilbert-Problems: The Problem of Index Inheritance (Folkmar Bornemann, Benedict Dingfelder, Georg Wechslberger)

On the Discretization of Nonholonomic Dynamics (Fernando Jiménez, Jürgen Scheurle)
Artefacts of Discretization for Integrable Systems with Scattering (Jurij Suris)

Potential Energy Surfaces (Johannes Keller, Caroline Lasser, Stephanie Troppmann)

On Integrability of Discrete Variational Systems (Raphael Boll)

Discrete Gradient Flow for Discrete Dislocations (Lucia De Luca)
Beyond Periodic Structures: Disordered Lattices (Matthias Ruf)

Discrete Convex and Non-Convex Gradient Flows (Daniel Matthes)

Touch, Tablet, Javascript, the next generation of Dynamic Geometry Software (Jürgen Richter-Gebert)
Conformal Flow on Tori and Higher Genus Surfaces, HalfEdgeTools and jReality (André Heydt)

A short movie about conformal maps; 15 min (by A. Bobenko and Ch. Gunn)


Social Evening Information

Dear SFB Days participants! We've planned some activities on 25.09.2014. Our activity depends on the weather in Berlin. Due to this uncertainty we have planned two alternatives:


Warm and Dry:

Football and/or volleyball at 'Tempelhofer Feld' in front of the historical hangars.
After the sports, feel free to walk to the Bergmann-Kiez for drinks at one of the nice locations. 

Cold and Wet:

Watching a mathematical cinema film together at the TU Berlin. Talking, socializing, soft drinks and some snacks inside. 


Way to 'Tempelhofer Feld':

View Larger Map




Ulrich Bauer (IST Austria)
Alexander Bobenko (TU Berlin)
Raphael Boll (TU Berlin)
Folkmar Bornemann (TU München)
Ulrike Bücking (TU Berlin)
Wolfgang Carl (TU Graz)
David Chubelaschwili (TU Berlin)
Diane Clayton-Winter (TU München)
Lucia De Luca (TU München)
Nikolay Dimitrov (TU Berlin)
Benedict Dingfelder (TU München)
Ekaterina Eremenko (TU Berlin)
Massimo Fornasier (TU München)
Gero Friesecke (TU München)
Marina Gonchenko (TU Berlin)
Mijail Guillemard (TU Berlin)
Felix Günther (IPDE - IHÉS, Bures-sur-Yvette)
André Heydt (TU Berlin)
Tim Hoffmann (TU München)
Emanuel Huhnen-Venedey (TU Berlin)
Fernando Jiménez (TU München)
Michael Joswig (TU Berlin)
Oliver Junge (TU München)
Florian Käferböck (TU Wien)
Johannes Keller (TU München)
Andrew Kels (TU Berlin)
Felix Knöppel (TU Berlin)
Benno König (TU München)
Stefan Kranich (TU München)
Gitta Kutyniok (TU Berlin)
Wai-Yeung Lam (TU Berlin)
Carsten Lange (TU München)
Caroline Lasser (TU München)
Wang-Q Lim (TU Berlin)
Andreas Loos (FU Berlin)
Daniel Matthes (TU München)
Christian Müller (TU Wien)
Horst Osberger (TU München)
Arnau Padrol (FU Berlin)
Philipp Petersen (TU Berlin)
Matteo Petrera (TU Berlin)
Ulrich Pinkall (TU Berlin)
Konrad Polthier (FU Berlin)
Helmut Pottmann (TU Wien)
Katharina Rasp (TU München)
Faniry Razafindrazaka (FU Berlin)
Jürgen Richter-Gebert (TU München)
Thilo Rörig (TU Berlin)
Günter Rote (FU Berlin)
Matthias Ruf (TU München)
Raman Sanyal (FU Berlin)
Katharina Schaar (TU München)
Jürgen Scheurle (TU München)
Wolfgang Schief (University of New South Wales, Australia)
Stefan Sechelmann (TU Berlin)
Lara Skuppin (TU Berlin)
Boris Springborn (TU Berlin)
Michael Strobel (TU München)
John Sullivan (TU Berlin)
Yuri Suris (TU Berlin)
Jan Techter (TU Berlin)
Isabella Thiesen (TU Berlin)
Stephanie Troppmann (TU München)
Mats Vermeeren (TU Berlin)
Thomas Vogt (FU Berlin)
Johannes Wallner (TU Graz)
Anna Wawrzinek (FU Berlin)
Georg Wechslberger (TU München)
Günter Ziegler (FU Berlin)



Travel Information

Hotel  reservation  for  external  participants:

Hotel Heidelberg

Knesebeckstr.  15
10623  Berlin
Tel:  +49  (0)30 313  01  03
Fax:  +49  (0)30 313  58  70


 Walking Information: 


Large View


How to get to Hotel Heidelberg, Knesebeckstr. 15, 10623 Berlin


By car

Exit the A 100 at the Kaiserdamm exit and drive along Kaiserdamm street (it later changes  its name into Bismarckstrasse) for approximately 2 km in the direction of Ernst-Reuter-Platz. At the roundabout, take the first exit onto Hardenbergstrasse and shortly after turn into the second street on the right onto Knesebeckstrasse. After 300 metres you will see Hotel Heidelberg on the right-hand side. 


By train

If you arrive by train, please get off at central train station Hauptbahnhof and take the S5, S7 or S75 interurban train „S-Bahn“ from there in the direction of Spandau (S5), Wannsee/Potsdam (S7) or Westkreuz (S75), getting off at Zoologischer Garten station. From there take the underground U2 in the direction of Ruhleben/Theodor-Heuss-Platz for one stop and get off at Ernst-Reuter-Platz. Exit the underground station in the direction of Renaissance-Theater and turn into the second street on the right onto Knesebeckstrasse – after a short walk you will arrive at Hotel Heidelberg. The journey takes about 20 minutes.

For public transportation please buy a ticket with travel zones AB (single ticket = EURO 2,60).

If you take a taxi from Hauptbahnhof, you will arrive at your hotel in about 15 minutes; costs for a taxi will be around EURO 14.


By plane to Tegel airport

From Tegel airport take Expressbus X9 in the direction of Zoologischer Garten and get off at the Ernst-Reuter-Platz stop. Continue for a few metres in the direction the bus was going and turn right onto Knesebeckstrasse. After about 300 metres you will see Hotel Heidelberg on the right-hand side of the street. The journey takes about 20 minutes. You will need a ticket with travel zones AB (single ticket = EURO 2,60)

If you take a taxi from Tegel airport, you will be at your hotel within 15-20 minutes; costs for a taxi will be around EURO 20.


By plane to Schönefeld airport

From Schönefeld airport please walk to Schönefeld train station (about 6 minutes). From there take the Airport-Express RE7 or RB14 in the direction of Bad Belzig/Dessau (RE7) or in the direction of Nauen (RB14) and get off at Zoologischer Garten station. Here, take the underground U2 for one stop in the direction of Ruhleben/Theodor-Heuss-Platz and get off at Ernst-Reuter-Platz. Exit the underground station in the direction of Renaissance-Theater and turn into the second street on the right onto Knesebeckstrasse – after about 300 metres you will arrive at Hotel Heidelberg. The journey takes about 50 minutes. 

For public transportation you will need a ticket with travel zones ABC (single ticket = EURO 3,20).

If you take a taxi from Schönefeld airport, you will get to your hotel within 40-45 minutes; costs for a taxi will be around EURO 43.


For detailed timetables please consult the homepage of our local public transportation system (English available): http://www.bvg.de/