The workshop takes place at TU Bergakademie Freiberg, August 5-7, 2009. It is organized by Elias Wegert, Gunter Semmler (Freiberg), Stephan Ruscheweyh, Oliver Roth, and Daniela Kraus (Würzburg) in the frame of a DFG project with the same title.

**Programme:**Wednesday, August 5, 2009 14:00-14:05 Opening 14:05-15:05 Ken Stephenson: Emergent conformal structure, biased Delaunay triangulations, and Beltrami's equation 15:05-16:05 Boris Springborn: Discrete conformal equivalence for triangle meshes 16:05-16:30 coffe break 16:30-17:30 Brock Williams: Gluing operations on circle packings 19:00 dinner Thursday, August 6, 2009 9:00-10:00 Edward Crane: Hyperbolic circle domains 10:00-11:00 Tao Qian: Approximation by functions of increasing phase on the boundary 11:00-12:00 Frank Martin: Adaptive wavelet methods for computing the Hilbert transform 12:00-13:30 lunch break 13:30-14:30 Daniela Kraus: Critical points of bounded analytic functions, nonpositive curvature, and Bergman spaces 14:30-15:30 David Bauer: Circle packing in view of differentiable manifolds 15:30-16:00 coffee break 16:00-17:00 Giorgi Khimshiashvili: Configuration spaces as intersections of quadrics 17:00- Open problem session Friday, August 7, 2009 9:00-10:00 Christer Glader: Nonlinear Riemann-Hilbert problems with circular target curves 10:00-11:00 Elias Wegert: On boundary value problems in circle packing **Location**: All talks are in room MIB-1113 in the main building of the university, accessible from Prüferstraße 1, or 9 or Akademiestraße 6. See a map of Freiberg downtown.**Registration**: Send email to Gunter Semmler. There is no conference fee. Abstracts of the talks can be found here**Participants**: Kenneth Stevenson (Knoxville), David Bauer (Leipzig), Christer Glader (Åbo), Edward Crane (Bristol), Brock Williams (Texas Tech), Boris Springborn (Berlin), Giorgi Khimshiashvili (Ilia Chavchavadze State University Tiflis), Tao Qian (Macao), Frank Martin (Freiberg), ... (to be continued)**Accomodation**: See the homepage of some hotels or use Google. Generally speaking, Hotel am Obermarkt and Kreller are closest to the university (5 minutes walking). If you need help, don't hesitate to contact us.**Travel:**Note that Freiberg is not Freiburg. The closest airport is Dresden. From there there are convenient train connections.**Touristic options**: Terra mineralia, the world's largest mineral collection, the Silbermann organs of the cathedral (concerts on Thursday evenings), or the exhibition mine Reiche Zeche invite you to make your stay in Freiberg a pleasant experience.**Pictures from the workshop:**