A discrete Schwarz minimal surface      

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Polyhedral Surfaces

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Seminar: Discrete Differential Geometry

There is a weekly seminar for the members of the research group and other interested people.

Contact: Thilo Rörig

Room: MA 874
Time: Tuesday 16:15

Talks:
20. 03. 2012 Mikhail Skopenkov (IITP RAS, Moscow)
Convergence of discrete period matrices
20. 12. 2011 Alexander Its (Indiana University Purdue University Indianapolis)
Painlevé Transcendents in Physics. The Riemann-Hilbert Point of View.
24. 11. 2011, 14:15
FU, Arnimallee 2
Igor Rivin (Temple University)
Hyperbolic polyhedra IV
17. 11. 2011, 14:15
FU, Arnimallee 2
Igor Rivin (Temple University)
Hyperbolic polyhedra III
08. 11. 2011
Igor Rivin (Temple University)
Hyperbolic polyhedra II
28. 10. 2011
10:15
Igor Rivin (Temple University)
Hyperbolic polyhedra I
21. 09. 2011
MA 851
Johannes Wallner (TU Graz)
Circular arc structures
13. 09. 2011
MA 551
Mikhail Skopenkov (IITP RAS, KAUST)
On the boundary value problem for discrete analytic functions
12. 07. 2011
George Shapiro (University of Massachusets, Amherst)
Discrete Differential Geometry in Twistor Space
05. 07. 2011
Boris Hasselblatt (Tufts University)
Legendrian knots and nonalgebraic contact Anosov flows on 3-manifolds
28. 06. 2011
Francesco Calogero (University of Rome "La Sapienza")
Isochronous dynamical systems, the arrow of time and the definitions of "chaotic" versus "integrable" behaviors
14. 06. 2011
Sebastian Heller (Universität Tübingen)
A spectral curve for Lawson's genus 2 surface
27. 05. 2011
MA 879, 12:15
Sergey Agafonov (Federal University of Paraiba, João Pessoa, Brazil)
Singular hexagonal 3-webs with holomorphic Chern connection and infinitesimal symmetries
24. 05. 2011
Dmitry Korotkin (Concordia University, Montreal)
Higher genus generalization of Weierstrass sigma-functions
10. 05. 2011
Ian Marschall (Moscow)
Poisson structure associated to differential and difference operators - with the Toda lattice and KdV as examples
30. 03. 2011
MA 313, 11:00
Elena Klimenko (Universität Düsseldorf)
Discrete groups of isometries in hyperbolic 3-space
23. 03. 2011
MA 313, 11:00
Vladimir Dragovic (Uni Lisboa, SANU Beograd)
From Poncelet porisms to quad-graphs: discrete differential-geometric structures approach
16. 03. 2011
MA 313, 11:00
Vasilisa Shramchenko (Université de Sherbrooke, Canada)
Hurwitz Frobenius manifolds and cluster algebras
09. 03. 2011
MA 313, 11:00
Grigory Mikhalkin (Université de Genève)
Complex algebraic geometry in the tropical limit
02. 03. 2011
MA 313, 11:00
Hartmut Weiß (LMU München)
Starrheit und Flexibilität von hyperbolischen Kegelmannigfaltigkeiten und Polyedern
23. 02. 2011
MA 313, 11:00
Franz Schuster (TU Wien)
Integralgeometrie und isoperimetrische Ungleichungen
15. 02. 2011
Max Wardetzky (Universität Göttingen)
Discrete Differential Operators - structure preservation, convergence & applications
09. 02. 2011
MA 313, 11:00
Olaf Post (HU Berlin)
Spektrale Eigenschaften verzweigter Strukturen
08. 02. 2011
Raphael Boll (TU Berlin)
Classification of 3D consistent quad-equations
01. 02. 2011
Felix Günther (HU Berlin)
Integrable discrete Laplace equations with convex variational principles
25. 01. 2011
Olga Holtz (TU Berlin)
From box splines to discrete geometry: zonotopal algebra, analysis, and combinatorics
04. 01. 2011
Udo Hertrich-Jeromin (University of Bath)
Special Lie-applicable surfaces
14. 12. 2010
Ulrich Pinkall (TU Berlin)
Notes on Discrete Exterior Calculus II
07. 12. 2010
Ulrich Pinkall (TU Berlin)
Notes on Discrete Exterior Calculus I
23. 11. 2010
Vladimir Bazhanov (Australian National University, Canberra)
A master solution to the quantum Yang-Baxter equation and classical discrete integrable equations
16. 11. 2010
Dmitry Sinitsyn (Moscow State University)
Geodesics on deformed spheres studied using an asymptotic Hamiltonian reduction
02. 11. 2010
Ivan Izmestiev (TU Berlin)
Infinitesimal rigidity of convex surfaces via the Hilbert-Einstein functional: The smooth case
26. 10. 2010
Ivan Izmestiev (TU Berlin)
Infinitesimal rigidity of convex surfaces via the Hilbert-Einstein functional
29. 06. 2010
Alexander Its (Purdue University)
Asymptotics of Toeplitz, Hankel and Toeplitz + Hankel determinants with Fisher-Hartwig singularities. The Riemann-Hilbert Approach.
22. 06. 2010
MA 212
Daniel Matthes (TU Wien)
Some nonlinear equations of fourth order, their gradient flow representation, and ideas for discretization
Video conference with TU Munich
01. 06. 2010
Esfandiar Navayazdani (Drexel University and TU Berlin)
Subdivision of Manifold-Valued Data
18. 05. 2010
Rob Kusner (University of Massachusets, Amherst)
TBA: Triangulations, Belyi, Abel, etc.
(Complex analysis in service of combinatorial geometry)
11. 05. 2010
MA 212
Peter Schröder (Caltech)
A Simple Geometric Model for Elastic Deformations
Video conference with TU Munich
10. 05. 2010
MA 041, 16:00
Tom Banchoff (Brown University)
Self-Linking, Inflections, and the Normal Euler Class for Smooth and Polyhedral Surfaces in Four-Space
Jointly with MDS
04. 05. 2010
Volker Mehrmann (TU Berlin)
Structured differential-algebraic systems and their structured discretization
20. 04. 2010
Ulrike Bücking (TU Berlin)
Approximation of conformal mappings by conformally equivalent triangle meshes in case of an equilateral lattice
16. 04. 2010
Gero Friesecke (TU Munich)
Energieminimierung und Kristallisation
Video conference with TU Munich
15. 12. 2009
Vladimir Oliker (Emory University)
Designing lenses with help from geometry and optimal transport
17. 11. 2009
Raphael Boll (TU Berlin)
On Non-Symmetric Discrete Relativistic Toda Systems and Their Relation to Quad-Graphs
10. 11. 2009
Andreas Pfadler (TU Berlin)
Hirota-Kimura Discretization Of Integrable Systems of Ordinary Differential Equations
13. 10. 2009
Stefan Felsner (TU Berlin)
Triangle Contact Representations
29. 09. 2009
MA 550
Hannes Sommer (TU Berlin)
Energy-preserving discretization of incompressible fluids
14. 07. 2009
Keenan Crane (Caltech)
Lie Group Integrators for Animation and Control of Vehicles
07. 07. 2009
Yuri Suris (TU Berlin)
On geometry, algebra and combinatorics of discrete integrable 3d systems
10. 03. 2009
Ulrich Brehm (TU Dresden)
A Universality Theorem for Realization Spaces of Maps
10. 02. 2009
Ivan Izmestiev (TU Berlin)
Dual metrics of convex polyhedral cusps
03. 02. 2009
Carsten Lange (FU Berlin)
Geometry and combinatorics of associahedra
27. 01. 2009
Michael Joswig (TU Darmstadt)
Generalized quadrangles and polar spaces
06. 01. 2009
H. Si, J. Fuhrmann, K. Gaertner (WIAS Berlin)
Delaunay mesh generation and some related discrete geometry problems
09. 12. 2008
Matthias Weber (Indiana University)
Triply periodic Minimal surfaces - a unified approach
02. 12. 2008
Dirk Ferus (TU Berlin)
Reilly's proof of the Alexandrov soap bubble theorem
11. 11. 2008
Felix Effenberger (Universität Stuttgart)
Hamiltonian submanifolds of regular polytopes
04. 11. 2008
MA 415
Boris Springborn (TU Berlin)
Konforme Äquivalenz von Dreiecksnetzen
23. 09. 2008
MA 851
Vladimir Dragovic (IHES, Paris/Math. Institute SANU, Belgrade)
Poncelet Porisms and Beyond
12. 09. 2008
10:15, MA 841
Nikolai Dolbilin (Steklov Mathematical Institute)
Parallelohedra: Classical Theorems by Minkowski, Voronoi and Beyond
09. 09. 2008
MA 851
Vladimir Bazhanov (Australian National University)
Quantum Geometry of 3-dimensional lattices
15. 07. 2008
Silke Möser (TU Darmstadt)
Cubical Projectivities
08. 07. 2008
Sergey Norin (Princeton University)
Divisors on graphs
17. 06. 2008
Ulrich Bauer (FU Berlin)
Uniform convergence of discrete curvatures on nets of curvature lines
13. 06. 2008
14:15, MA 751
Dmitri Chelkak (St. Petersburg University)
Universality for the Ising model on the isoradial graphs
03. 06. 2008
Peter Schröder (Caltech)
Everything you always wanted to know about numerical algorithms but never dared to ask! Part III
27. 05. 2008
Peter Schröder (Caltech)
Everything you always wanted to know about numerical algorithms but never dared to ask! Part II
20. 05. 2008
Peter Schröder (Caltech)
Everything you always wanted to know about numerical algorithms but never dared to ask!
15. 04. 2008
Kristoffer Josefsson (TU Berlin)
Mathematics in architecture
01. 04. 2008
Udo Hertrich-Jeromin (University of Bath)
Discrete CMC surfaces in space forms
11. 03. 2008
Christophe Barlieb (cdmb architects)
Hidden Dimensions
26. 02. 2008
Joachim Linn (Fraunhofer ITWM, Kaiserslautern)
Discrete rods from geometric finite differences
20. 02. 2008
14:15
Maria Ares Ribo Mor
Embedding 3-Polytopes on Small Integer Grids
12. 02. 2008 Ivan Izmestiev (TU Berlin)
Projective properties of the infinitesimal rigidity of frameworks
16. 10. 2007 Ivan Izmestiev (TU Berlin)
Connecting geometric triangulations by stellar moves
05. 10. 2007
12:15, MA 750
Helmut Pottmann (TU Wien)
Architectural Geometry
27. 09. 2007
14:00, MA 313
Nikolaus Witte (TU Berlin)
Knotted Tori
13. 07. 2007 Jerrold Marsden (Caltech)
Discrete Exterior Calculus and Asynchronous Variational Integrators for Computational Electromagnetism
10. 07. 2007 Wayne Rossman (Kobe University)
Conserved quantities and discrete surfaces
03. 07. 2007 Nico Düvelmeyer (TU Berlin)
Embeddings of partially given metric spaces
26. 06. 2007 Michael Baake (Universität Bielefeld)
Coincidence site lattices and their generalizations
19. 06. 2007 Julian Pfeifle (Universitat Politècnica de Catalunya)
Gale duality bounds for the zeros of polynomials with nonnegative coefficients
05. 06. 2007 Nikolaus Witte (TU Berlin)
Constructing simplicial branched covers
22. 05. 2007 Max Wardetzky (FU Berlin)
Discrete bending energies
15. 05. 2007 John Sullivan (TU Berlin)
Medial axes in Moebius geometry
08. 05. 2007 Kristoffer Josefsson (TU Berlin)
The four vertex theorem for polygons
24. 04. 2007 Boris Springborn (TU Berlin)
There are no (5,7)-triangulations of the torus, and similar theorems. Function theoretic proofs.
03. 04. 2007 Marc Alexa (TU Berlin)
Fair triangulated surfaces from positional constraints at interactive rates
28. 03. 2007
14:15
Jürgen Richter-Gebert (TU München)
Recognition of computationally contructed loci
30. 01. 2007 Ivan Izmestiev (TU Berlin)
The Colin de Verdiere graph parameter and rigidity of convex polytopes
05. 12. 2006 Hang Si (WIAS, Berlin)
Toward 3D boundary conforming Delaunay mesh generation
21. 11. 2006 David Cohen-Steiner (INRIA, Sofia-Antipolis)
Topological Persistence
14. 11. 2006 Sergey Tsarev (TU Berlin)
Approximation of continuous curvature lines with circular patterns
01. 11. 2006
14:15
Torsten Langer (Max-Planck-Institut für Informatik, Saarbrücken)
Barycentric Coordinates for Spherical Polygons and Polyhedra in R^3
31. 10. 2006 Alexander Belyaev (Max-Planck-Institut für Informatik, Saarbrücken)
Continuous Barycentric Coordinates
24. 10. 2006 Vladimir Bazhanov (Australian National University, Canberra)
Ubiquitous Bethe Ansatz
17. 10. 2006 Peter Schröder (Caltech)
Smooth Tangent Vector Fields on Arbitrary Topology Surfaces through Subdivision
10. 10. 2006 Francois Fillastre (University of Neuchatel, University of Toulouse)
Realisation of metrics on compact surfaces, an overview
26. 09. 2006 Lilya Kharevych (Caltech)
Geometric, Variational Integrators for Computer Animation
25. 08. 2006 Nikolaus Witte (TU Berlin)
Construction of combinatorial 4-manifolds as branched covers
07. 07. 2006 Michael Joswig (TU Darmstadt)
Optimale diskrete Morsefunktionen
23. 06. 2006 Alexey Kokotov (Concordia University, Montreal)
Flat conical metrics on Riemann surfaces and determinants of Laplacians
12. 05. 2006 Ivan Izmestiev (TU Berlin)
Mixed volumes and Alexandrov theorem
05. 05. 2006 Ivan Izmestiev (TU Berlin)
Mixed volumes and Minkowski theorem
21. 04. 2006 Johannes Wallner (TU Wien)
Smoothness analysis of subdivision schemes on manifolds
24. 03. 2006 Ivan Izmestiev (TU Berlin)
There is no triangulation of the torus with vertex degrees 5,6,...,6,7
03. 03. 2006 John Sullivan (TU Berlin)
Pak's new proof of the rigidity of convex polyhedra
17. 02. 2006 Jointly with the seminar "Energies and flows for space curves".
Steffen Weissmann (TU Berlin)
Realtime simulation of fluid flow
10. 02. 2006 Frank Lutz (TU Berlin)
Polyhedral Surfaces and Higher-Dimensional Manifolds
20. 01. 2006 Wolfgang Schief (UNSW Sydney)
Plasma confinement, differential geometry and soliton theory
16. 12. 2005 Ivan Izmestiev (TU Berlin)
Existence and uniqueness of a convex cap with a given metric: Variational approach
02. 12. 2005 Sergey Tsarev (TU Berlin)
The Monge Problem: quadrature-free integration of nonlinear ODEs, Pfaffian forms and efficient car parking
25. 11. 2005 Thorsten Theobald (TU Berlin)
Liniengeometrische Probleme und ihre diskreten Modelle
18. 11. 2005 Boris Springborn (TU Berlin)
Rivin's variational principle for Delaunay triangulations and a generalization to weighted triangulations (part 2)
11. 11. 2005 Boris Springborn (TU Berlin)
Rivin's variational principle for Delaunay triangulations and a generalization to weighted triangulations (part 1)
04. 11. 2005 Nikolaus Witte (TU Berlin)
Balanced Triangulations of Lattice Polytopes
21. 10. 2005 Ulrike Scheerer (TU Berlin)
Convergence of circle patterns
01. 07. 2005 Ulrich Pinkall (TU Berlin)
Smooth and polygonal smoke rings (part 2)
24. 06. 2005 Ulrich Pinkall (TU Berlin)
Smooth and polygonal smoke rings (part 1)
10. 06. 2005 Nicolai Reshetikhin (UC Berkeley)
Pearcey scaling in random skew plane partitions
02. 06. 2005
Thursday 14:15
MA 744
Joint seminar with the discrete geometry group at TU Berlin.
Oleg Karpenkov (IMU Moscow)
Multidimensional continued fractions
20. 05. 2005
9:00
MA 415
Joint seminar with the geometry group at TU Berlin.
Wolfgang Schief (UNSW Sydney)
On parallel surfaces: Geometry, integrability, discretization and applications
19. 05. 2005
Thursday 16:15
MA 313
Joint seminar with the geometry group at TU Berlin.
Franz Pedit (U Mass Amherst)
Flächengeometrie und integrable Systeme: glatt und diskret
18. 05. 2005
Wednesday 16:15
MA 313
Joint seminar with the geometry group at TU Berlin.
Norbert Peyerimhoff (University of Durham)
Krümmung im diskreten und kontinuierlichen Fall: Analogien und Unterschiede
13. 05. 2005
MA 313
Joint seminar with the geometry group at TU Berlin.
Monika Ludwig (TU Wien)
Zur affinen Geometrie konvexer Körper
12. 05. 2005
Thursday 16:15
MA 415
Joint seminar with the geometry group at TU Berlin.
Tim Hoffmann (LMU München)
Diskretisierung integrabler Geometrien
29. 04. 2005
MA 415
Joint seminar with the geometry group at TU Berlin.
Wilderich Tuschmann (Universität Münster)
Geometrie und Topologie fast nicht-negativer Krümmung
28. 04. 2005
Thursday 18:00
MA 415
Joint seminar with the geometry group at TU Berlin.
Michael Joswig (TU Darmstadt)
Färbungen von konvexen Polytopen und kombinatorischen Mannigfaltigkeiten
22. 04. 2005
MA 313
Joint seminar with the geometry group at TU Berlin.
Yuri Suris (TU München)
Multidimensionale Verträglichkeit als Leitprinzip der integrablen Differentialgeometrie
21. 04. 2005
Thursday 17:15
MA 415
Joint seminar with the geometry group at TU Berlin.
Ilka Agricola (HU Berlin)
Spezielle Geometrien, Holonomie und String-Theorie
15. 04. 2005 Christoph Bohle (TU Berlin)
Darboux Transformations and Spectral Curves of Discrete 2-Tori in S^4
(Joint work with F. Pedit and U. Pinkall)
18. 03. 2005 Boris Springborn (TU Berlin)
Discrete conformal mapping via circle patterns
on top
Thilo Roerig . 02.05.2012.