Dr. Tristan Gally

Member until 2019.

Research Interests

  • Mixed-Integer Semidefinite Programming
  • Truss Topology Design

Project

Talks

Optimal Placement of Active Bars for Buckling Control in Truss Structures under Bar Failures at ICUME 2018, November 15, 2018, Darmstadt
Knapsack Constraints over the Positive Semidefinite Cone at ISMP 2018, July 2, 2018, Bordeaux
Warmstarts and other improvements in SCIP-SDP (slides (opens in new tab)) at the SCIP Workshop 2018, March 7, 2018, Aachen
Applications and Solution Approaches for Mixed-Integer Semidefinite Programming (slides (opens in new tab)) at the MOSEK workshop on Mixed-integer conic optimization, January 11, 2018, Copenhagen
SCIP-SDP: A Framework for Solving Mixed-Integer Semidefinite Programs at the 5th Alpen-Adria-Workshop on Optimization, December 8, 2017, Klagenfurt
SCIP-SDP: A General-Purpose Solver for Mixed-Integer Semidefinite Programming at the International Conference on Operations Research, September 7, 2017, Berlin
SCIP-SDP: A Framework for Solving Mixed-Integer Semidefinite Programs at the SIAM Conference on Optimization, May 22, 2017, Vancouver
Gemischt-Ganzzahlige Semidefinite Programmierung zur Robusten Topologieoptimierung von Stabwerken (in german) at the TOR Workshop “Operations Research in Engineering”, March 28, 2017, Wenden
SCIP-SDP: A Framework for Solving Mixed-Integer Semidefinite Programs (slides (opens in new tab))
at the 5th International Congress on Mathematical Software, July 12, 2016, Berlin
Solving Mixed-Integer Semidefinite Programs for Robust Truss Topology Design at ISMP 2015, July 14, 2015, Pittsburgh
Mixed integer semidefinite programming with SCIP at the SCIP Workshop 2014, October 2, 2014, Berlin

Publications

Tristan Gally, Anja Kuttich, Marc E. Pfetsch, Maximilian Schaeffner, and Stefan Ulbrich: Optimal Placement of Active Bars for Buckling Control in Truss Structures under Bar Failures, Applied Mechanics and Materials, 885 pp. 119-130, 2018
Lena C. Altherr, Nicolas Brötz, Ingo Dietrich, Tristan Gally, Felix Geßner, Hermann Kloberdanz, Philipp Leise, Peter F. Pelz, Pia Schlemmer and Andreas Schmitt: Resilience in Mechanical Engineering -a Concept for Controlling Uncertainty during Design, Production and Usage Phase of Load-Carrying Structure, Applied Mechanics and Materials, 885 pp. 187-198, 2018
Ambros Gleixner, Michael Bastubbe, Leon Eifler, Tristan Gally, Gerald Gamrath, Robert Lion Gottwald, Gregor Hendel, Christopher Hojny, Thorsten Koch, Marco E. Lübbecke, Stephen J. Maher, Matthias Miltenberger, Benjamin Müller, Marc E. Pfetsch, Christian Puchert, Daniel Rehfeldt, Franziska Schlösser, Christoph Schubert, Felipe Serrano, Yuji Shinano, Jan Merlin Viernickel, Matthias Walter, Fabian Wegscheider, Jonas T. Witt, and Jakob Witzig: The SCIP Optimization Suite 6.0, ZIB-Report 18-26, July 2018
Tristan Gally, Marc E. Pfetsch, and Stefan Ulbrich: A Framework for Solving Mixed-Integer Semidefinite Programs, Optimization Methods and Software, 33(3) pp. 594--632, 2018.
The Preprint, an online supplement with detailed results (opens in new tab) and the corresponding instances are also available.
Ambros Gleixner, Leon Eifler, Tristan Gally, Gerald Gamrath, Patrick Gemander, Robert Lion Gottwald, Gregor Hendel, Christopher Hojny, Thorsten Koch, Matthias Miltenberger, Benjamin Müller, Marc E. Pfetsch, Christian Puchert, Daniel Rehfeldt, Franziska Schlösser, Felipe Serrano, Yuji Shinano, Jan Merlin Viernickel, Stefan Vigerske, Dieter Weninger, Jonas T. Witt, and Jakob Witzig: The SCIP Optimization Suite 5.0, ZIB-Report 17-61, December 2017
Stephen J. Maher, Tobias Fischer, Tristan Gally, Gerald Gamrath, Ambros Gleixner, Robert Lion Gottwald, Gregor Hendel, Thorsten Koch, Marco E. Lübbecke, Matthias Miltenberger, Benjamin Müller, Marc E. Pfetsch, Christian Puchert, Daniel Rehfeldt, Sebastian Schenker, Robert Schwarz, Felipe Serrano, Yuji Shinano, Dieter Weninger, Jonas T. Witt, and Jakob Witzig: The SCIP Optimization Suite 4.0, ZIB-Report 17-12, March 2017
Tristan Gally and Marc E. Pfetsch: Computing Restricted Isometry Constants via Mixed-Integer Semidefinite Programming, Preprint: Optimization Online, April 2016
Gerald Gamrath, Tobias Fischer, Tristan Gally, Ambros M. Gleixner, Gregor Hendel, Thorsten Koch, Stephen J. Maher, Matthias Miltenberger, Benjamin Müller, Marc E. Pfetsch, Christian Puchert, Daniel Rehfeldt, Sebastian Schenker, Robert Schwarz, Felipe Serrano, Yuji Shinano, Stefan Vigerske, Dieter Weninger, Michael Winkler, Jonas T. Witt, and Jakob Witzig: The SCIP Optimization Suite 3.2, ZIB-Report 15-60, February 2016
Tristan Gally, Christopher M. Gehb, Philip Kolvenbach, Anja Kuttich, Marc E. Pfetsch, and Stefan Ulbrich: Robust Truss Topology Design with Beam Elements via Mixed Integer Nonlinear Semidefinite Programming, Applied Mechanics and Materials, 807 pp. 229-238, 2015