Institute of Geometry

Here you can find a list of events co-organized by the Institute of Geometry at TU Graz.

Lectures by guests, 2025—
2025/03/28 Morteza Saghafian (ISTA): The MST-Ratio: A New Measure of Mixedness for Colorful Point Sets [Link]
2025/03/07 F. Gimpen (Univ. Bremen): Minimal flat-injective presentations and related invariants [Link]

Events co-organized by Institute of Geometry, 2022—2024
2024/09/24-27 ComPer 2024 Workshop (Graz) [Link]
2024/05/24 DK Discrete Mathematics Closing Event [Link]
2023/8/28–9/1 Geometry Workshop (Innsbruck) [Link]
2023/9/18–22 Conference of the Austrian Mathematical Society (Graz) [Link]
Tag der Geometrie [21.4.2022] , [23.4.2023] [4.4.2024]

Lectures by guests, 2022—2024
2024/07/23 B. Juran (Univ. Copenhagen): The algebraic K-theory of algebraic tori via equivariant homotopy theory [Link]
2024/06/28 N. Bergeron (York Univ, CAN): The excedance quotient of the Bruhat order, Quasisymmetric Varieties and Temperley-Lieb algebras [Link]
2024/06/26 Nikola Milićević (Penn State Univ.): Homotopy and singular homology groups of finite (di)graphs [Link]
2024/06/19 János Ruff (Univ. Pécs): Card Games and Finite Geometry [Link]
2024/05/15 F. Šarčević (Univ. Sarajevo): Topology of political structures and voting games modeled by simplicial complexes [Link]
2024/04/24 A. Rathod (Ben-Gurion Univ. Negev): Cup Product Persistence and Its Efficient Computation [Link]
2024/01/11 V. Pons (Paris): The s-weak order and s-Permutahedron [Link]
2023/11/23 J. Roldan (USC): Tightening the Knot Between Biological and Artificial Neural Networks via Shapes from Spiking Neural Networks [Link]
2023/02/22 J. Lazovskis (Riga): Continuous and discrete dynamic topology [Link]
2022/07/20 M. Borzechowski (FU Berlin.): Unique Sink Orientations of Grids is in Unique End of Potential Line [Link]
2022/05/05 H. Adams (Colorado State Univ.): Gromov-Hausdorff distances, Borsuk-Ulam theorems, and Vietoris-Rips complexes [Link]
2022/05/04 A. Merino (TU Berlin): Greedy generation for Hamilton paths in rectangulations, elimination trees and matroids [Link]

Events co-organized by Institute of Geometry, 2019—
2021/09/20–24 Geometry Workshop (Obergurgl) [Link]
2019/09/1–6 Geometry Workshop (Strobl) [Link]
2019/05/24 Student Workshop Approximation Theory and Applications) [Link]
2019/01/3 East Austria TDA Workshop [Link]
Tag der Geometrie [24.4.2019] , [4.4.2021]

Lectures by guests, 2019—2021
2021/08/19 H. Pottman (KAUST): Paneling architectural freeform surfaces [Link]
2021/08/19 F. Lehner (TU Graz): Folding Polyominoes into Cubes [Link]
2021/08/19 H.-P. Schröcker (Univ. Innsbruck): Curves, Surfaces and Motions [Link]
2020/01/16 T. Heiss (IST Austria): Using multi-cover persistent homology as a fingerprint for periodic crystals [Link]
2019/11/12 C. Moosmüller (Univ. California San Diego): Analysis of gene expression profiles via Wasserstein optimal transport on networks [Link]
2019/10/16 T. Dey (Ohio State Univ.) FoE-Kolloquium: Computational Topology in Shape and Data Analysis [Link]
2019/10/18 T. Dey (Ohio State Univ.): Generalised Persistence Algorithm for Decomposing Multi-parameter Persistence Module
2019/09/26 M. Botnan (VU Amsterdam): Decomposition of Persistence Modules [Link]
2019/01/30 H. Wagner: Bregman geometry and Information Topology [Link]
2019/01/30 H. Edelsbrunner: Tri-partitions of complexes [Link]
2019/01/30 G. Osang: Persistence of Multi-Covers [Link]

Events co-organized by Institute of Geometry, 2016—2018
2017/09/21–26 Geometry Workshop (Obergurgl) [Link]
2017/06/26–30 Conference on Geometry: Theory and Applications (Pilsen) [Link]
2016/9/27–10/6 Fall School Discrete Geometry and Topology [Link]
Tag der Geometrie [06.4.2016] , [20.4.2017] [5.4.2018]

Lectures by guests 2016—2018
2018/08/30 P. Dlotko (Univ. Swansea): Discrete nerve complex and decorated persistence diagrams
2018/06/21 E. Escolar (RIKEN, Japan): Computing indecomposable decompositions of persistence modules [Link]
2018/06/19 B. Wang (Univ. Utah): Discussions on Discrete Stratified Morse Theory [Link]
2018/04/17 S. Scaramuccia (Univ. Genova): Multi-Parameter Persistence [Link]
2017/03/10 H. Wagner (IST Austria): Topological Analysis in Information Spaces [Link]
2017/02/13 U. Fugacci (Univ. Kaiserslauter): Topological Data Analysis through Homology and Discrete Morse Theory [Link]
2016/10/21 P. Grohs (Univ. Wien): Infinite-dimensional Phase Retrieval [Link]
2016/09/30 H. Edelsbrunner (IST Austria): Distances and divergences in topological data analysis [Link]
2016/09/30 R. Sanyal (Goethe-Univ. Frankfurt): The geometry of double posets [Link]
2016/09/30 W. Kusner (TU Graz): Critical packings, rigidity, and the radius function [Link]
2016/09/22 P. Škraba (Ljubljana): An approximate nerve theorem [Link]
2016/09/08 U. Bauer (TU München): The unexpected efficiency of persistent cohomology [Link]
2016/09/05 S. Raghvendra (Virginia Tech): Robust and Optimal Online Algorithm for Minimum Metric Bipartite Matching [Link]
2016/07/19 C. Yap (NYU): On Soft Foundations for Geometric Computation [Link]
2016/06/24 G. Szewieczek (TU Wien): About special triply orthogonal systems [Link]
2016/06/24 A. Fuchs (TU Wien): Transformations of isothermic channel surfaces [Link]
2016/06/24 V. Branding (TU Wien): Prescribing Curvature and Torsion on Surfaces [Link]

Events co-organized by Institute of Geometry, 2013—2015
Tag der Geometrie [10.4.2013] [30.4.2014] [15.4.2015]
2015/07/10–12 Geometry Workshop (Seggau) [Link]
2015/07/06–08 Symposium Geometry Processing (Graz) [Link]
2015/06/08–12 Conference on Geometry, Theory and Applications (Kefermarkt) [Link]
2013/08/28–31 Geometry Workshop (Strobl) [Link]
2013/06/22–26 Workshop Multidimensional Continued Fractions (Graz) [Link]

Lectures by guests 2013—2015
2015/12/11 P. Škraba (Ljubljana): Maximal Persistence [Link]
2015/12/04 M. Scolamiero (EPFL): Stable invariants for multidimensional persistence [Link]
2015/07/07 A. Singer (Princeton): Solving the 3-D Puzzle of Rotation Assignment in Single Particle Cryo-Electron Microscopy [Link]
2015/03/24 V. Kurlin (Durham University): A homologically persistent skeleton in computer vision [Link]
2015/01/20–23 Colloqium on computational topology and geometry [Link]
2014/11/21 B. Servatius (Worcester Polytechnic): Henneberg moves on mechanisms [Link]
2014/11/06 C. Tang (King Abdullah University of Science and Technology): Interactive Design with Nonlinear Constraints [Link]
2014/10/08 Ph. Grohs (ETH Zürich) Mathematisches Kolloquium: Anisotropic Structures in Numerics and Signal Processing [Link]
2014/10/07 Ph. Grohs (ETH Zürich): Optimal A Priori Discretization Error Bounds for Geodesic Finite Elements [Link]
2014/07/10 H. Stachel (TU Wien): Ist ein Polyeder durch sein Netz festgelegt? [Link]
2014/07/10 H.-P. Schröcker (Univ. Innsbruck): Neue Resultate zu Rationalen Bewegungsvorgägen [Link]
2014/07/04 S. Klavžar (Univ. Ljubljana): Domination Game [Link]
2014/07/04 W. Imrich (MU Leoben): On the Game of Cops and Robbers [Link]
2014/06/06 G. M. Ziegler (FU Berlin): What is Mathematics? What is Computer Science? - Descriptions, Images, Panoramas [Link]
2013/12/13 A. Mehlmann (TU Wien): Verspielte Mathematik [Link]
2013/11/29 M. Eigensatz (Evolute): No Free Form [Link]
2013/11/19 M. Joswig (Berlin): Lattice Polygons and Real Roots [Link]
2013/10/22 G. Glaeser (Univ. Angew. Kunst Wien): Visualisierung — Simulation — Animation in der Mathematik [Link]
2013/10/01 C. Moosmüller (Wien): Projektive Strukturen, Traktoren und invariante Differentialoperatoren [Link]
2013/04/26 A. Vaxman (TU Wien): A Projective Framework for Polyhedral Mesh Modeling [Link]
2013/04/25 M. Lavíčka (Plzeň): Contour method for parameterizing canal surfaces [Link]
2013/01/18 U. Hertrich-Jeromin (TU Wien): Discrete linear Weingarten surfaces [Link]

Events co-organized by Institute of Geometry, 2010—2012
2012/09/27–30 Adv. Architectural Geometry (Centre Pompidou, Paris) [Link]
2011/06/20–22 Geometry Workshop (Obergurgl) [Link]
2011/06/20–24 Conference on Geometry (Vorau) [Link]
2010/09/22–24 Architectural Geometry Retreat (Johnsbach) [Link]
2010/09/18–21 Adv. Architectural Geometry (Vienna) [Link]
Tag der Geometrie [18.9.2010] [4.5.2011] [27.9.2012]

Lectures by guests 2010—2012
2012/11/23 F. Schuster (TU Wien): Mathematisches Kolloquium, Integral Geometry and Isoperimetric Inequalities [Link]
2012/11/19 K. Jetter (Hohenheim): Subdivision in shift-invarianten Räumen [Link]
2012/07/19 P. Grohs (ETH Zürich) On the structure of anistropic frames [Link]
2012/07/06 K. Hormann (Lugano) Geometric Curve Subdivision [Link]
2012/06/20 A. Ustinov (Russian Acad. Sc.) Farey fraction spin chains and Gauss-Kuz’min statistics for quadratic irrationals [Link]
2012/03/27 J. Schicho (RICAM, Linz) Faktorisierung von Bewegungen im Raum [Link]
2012/01/27 S. Haller (Univ. Wien) Commutators of Diffeomorphisms [Link]
2012/01/24 F. Aicardi (Triest) The geometry of indefinite binary quadratic forms [Link]
2012/01/20 K.-T. Sturm (Univ. Bonn): Mathematisches Kolloquium, Optimal Transport in Geometry, Analysis and Probability [Link]
2011/11/03 N. Leduc, O. Bernard, A. Sassa (RFR, TU Wien): Minicolloqium on freeform constructions [Link]
2011/10/14 M. Kaltenbäck (TU Wien): Hamiltonsche Differentialgleichungen mit Singularitäten und de Branges-Räume [Link]
2011/05/24 Ph. Grohs (ETH Zürich): Multiscale analysis beyond wavelets [Link]
2010/12/10 N. Mitra (KAUST): Analysis and Manipulation of 3D Geometry (FoSP-Kolloquium) [Link]
2010/11/26 U. Reif (TU Darmstadt): Multivariate Interpolation und Approximation mit Polynomen [Link]
2010/05/06 S. Gorjanc (Univ. Zagreb): Generalized Rose-surfaces [Link]
2010/05/06 E. Jurkin (Univ. Zagreb): Some remarks on Clifford's chain of theorems in affine CK-planes [Link]
2010/04/26 H. Pottmann (TU Wien & KAUST): Architekturgeometrie (FoSP-Kolloquium) [Link]

Events co-organized by Institute of Geometry 2007—2009
2009/09/20–25 ÖMG+DMV-Kongress, TU Graz [Link]
2009/07/06–09 Workshop Surfaces, Meshes, Geometric Structures (Admont) [Link]
2009/06/29–07/02 Conference on Geometry: Theory and applications, Pilsen [Link]
2007/09/15 Workshop Polyhedral surfaces and industrial applications (Strobl) [Link]
2007/06/08 Conference on Geometry (Vorau) [Link]
Tag der Geometrie [22.4.2009] [2.4.2008]

Lectures by guests 2007—2009
2009/06/26 G. Umlauf (Univ. Kaiserslautern): Online triangulation of laser-scan data [Link]
2009/05/29 P. Oswald (Jacobs University Bremen): Polynomial Loop approximation [Link]
2009/05/15 N. Dyn (Tel Aviv Univ.): Linear and nonlinear subdivision schemes in geometric modeling (Math. Kolloquium) [Link]
2009/05/08 H. Bischof (TU Graz): Variationsmethoden für Computer Vision mittels Grafik-Hardware (FoSP-Kolloqium) [Link]
2009/04/28 H. Sobieczky (TU Wien): Oberflächen und ihre Zielfunktion: Definition für die aerodynamische Optimierung [Link]
2008/11/21 A.M. Vershik (St. Petersburg): Invariant integration in infinitely dimensional spaces and Poisson-Dirichlet measure [Link]
2008/10/14 T. Yu (Drexel Univ.): Subdivision on manifolds: The smoothness and approximation order mysteries [Link]
2008/06/24 S. Harizanov (Bremen): Stability of nonlinear multiresolution analysis [Link]
2008/05/15 U. Reif (TU Darmstadt): Analyse und Konstruktion von Subdivisionsalgorithmen [Link]
2008/05/08 O. Karpenkov (Univ. Leiden): Lattice discretization of trigonometric functions [Link]
2008/04/18 T. Sauer (Giessen): Subdivision in mehreren Variablen -- verfeinerbare Funktionen und die verfluchte Dimension (Math. Kolloquium) [Link]
2007/09/11 K. Polthier (FU Berlin): FreeLence -- Efficient compression of large geometry meshes [Link]
2007/07/30 A. Weinmann (München): Lipschitzräume bezüglich Jacobi-Translationen
2007/06/14 N. Dyn (Univ. Tel Aviv): Approximation of set-valued functions [Link]
2007/06/14 Ph. Grohs (TU Graz): Nonlinear interpolatory subdivision schemes [Link]
2007/04/19 I. Sabitov (Moscow): Solution of polyhedra [Link]
2007/03/16 J. Wallner: Diskrete Geometrie und Freiformflächen in der Architektur (Antrittsvorlesung, FoSP-Kolloquium)

Geometry seminar, archive of talks