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Fingerprint Dive into the research topics where Christopher Hojny is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Integer programming Engineering & Materials Science
Polytopes Mathematics
Binary Mathematics
Jacks Engineering & Materials Science
Extended Formulations Mathematics
Symmetry Mathematics
LP Relaxation Mathematics
Graph Partitioning Mathematics

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Research Output 2016 2019

  • 3 Citations
  • 4 Article
  • 2 Report
  • 1 Conference contribution

Knapsack Polytopes – A Survey

Hojny, C., Gally, T., Habeck, O., Lüthen, H., Matter, F., Pfetsch, M. E. & Schmitt, A., 19 Sep 2019, In : Annals of Operations Research.

Research output: Contribution to journalArticleAcademicpeer-review

Convex hull
Integer
Valid inequalities
Coefficients
3 Citations (Scopus)

Polytopes associated with symmetry handling

Hojny, C. & Pfetsch, M. E., 2019, In : Mathematical Programming. 175, 1, p. 197-240 44 p.

Research output: Contribution to journalArticleAcademicpeer-review

Integer programming
Polytopes
Orbits
Symmetry
Binary

Sparsity of integer formulations for binary programs

Hojny, C., Lüthen, H. & Pfetsch, M. E., 2019, In : Operations Research Letters. 47, 5, p. 348-352 5 p.

Research output: Contribution to journalArticleAcademicpeer-review

Traveling salesman problem
Sparsity
Polynomials
Binary
Integer

The SCIP Optimization Suite 6.0

Gleixner, A., Bastubbe, M., Eifler, L., Gally, T., Gottwald, R. L., Hendel, G., Hojny, C., Koch, T., Lübbecke, M. E., Maher, S. J., Miltenberger, M., Müller, B., Pfetsch, M. E., Puchert, C., Rehfeldt, D., Schlösser, F., Schubert, C., Serrano, F., Shinano, Y., Viernickel, J. M. & 4 others, Walter, M., Wegscheider, F., Witt, J. T. & Witzig, J., 2018, Zuse Institut Berlin. 42 p. (ZIB Report)

Research output: Book/ReportReportAcademic

Open Access
File
Decomposition
Integer programming
Jacks
Software packages
Costs

Extended formulations for column constrained orbitopes

Schmitt, A., Hojny, C. & Pfetsch, M. E., 2017, Operations Research Proceedings 2017. Kliewer, N., Ehmke, J. F. & Borndörfer, R. (eds.). Cham: Springer, p. 197-203 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Extended Formulations
LP Relaxation
Graph Partitioning
Polytopes
Packing

Prizes

Preis für hervorragende wissenschaftliche Leistungen

Christopher Hojny (Recipient), 2019

Prize: OtherCareer, activity or publication related prizes (lifetime, best paper, poster etc.)Scientific

honors and awards

Activities 2014 2019

  • 8 Contributed talk
  • 5 Invited talk

Strong IP Formulations Need Large Coefficients

Christopher Hojny (Speaker)
6 Sep 2019

Activity: Talk or presentation typesContributed talkScientific

Symmetry Handling in Binary Programs: Combining Symretopes and Orbital Fixing

Christopher Hojny (Speaker)
1 Jul 2019

Activity: Talk or presentation typesInvited talkScientific

Strong IP Formulations Need Large Coefficients

Christopher Hojny (Speaker)
27 Mar 2019

Activity: Talk or presentation typesInvited talkScientific

Strong IP Formulations Need Large Coefficients

Christopher Hojny (Speaker)
9 Jan 2019

Activity: Talk or presentation typesContributed talkScientific

Symmetry Breaking Polytopes: A Framwork for Symmetry Handling in Binary Programs

Christopher Hojny (Speaker)
3 Jul 2018

Activity: Talk or presentation typesInvited talkScientific