Jan Techter

techter at math dot tu minus berlin dot de

AG Geometrie und mathematische Physik
Intstitut für Mathematik
TU Berlin
Strasse des 17. Juni 136,
10623 Berlin, Germany

Office: MA 880

Research interests

Geometry, Differential Geometry, Discrete Differential Geometry

Publications

Preprints
  • Non-Euclidean Laguerre geometry and incircular nets (arxiv)
    A.I. Bobenko, C.O.R. Lutz, H. Pottmann, J. Techter
Theses

Teaching

Lecture Notes

  • SS21: Non-Euclidean Geometries (with notes)
    Möbius geometry, Laguerre geometry, Lie geometry, Plücker geometry, curves and surfaces in these geometries.
  • SS20: Non-Euclidean Geometries
    Projective geometry, projective configurations, quadrics, Klein Erlangen program, classification of (dual) pencils of conics, Graves-Chasles theorem, incircular nets, Laguerre geometry, hypercycles, checkerboard incircular nets.
  • SS14: Discrete Differential Geometry
    Discrete curves: curvatures, flows, elastica, Darboux transforms;
    Discrete surfaces: abstract discrete surfaces, polyhedral surfaces, piecewise flat surfaces, discrete cotan Laplace operator, Delaunay tessellations, line congrueneces over simplicial surfaces, polyhedral surfaces with parallel Gauss map, Willmore energy.
Plain Academic