The research interests of our group include Scheduling and Operations Research. Please e-mail us if you would like to receive copies of our publications.

Research

Publications (VHB Rankings)
  1. On the minimum number of resources for a perfect schedule (with R. Benmansour), Central European Journal of Operations Research, doi.org/10.1007/s10100-022-00803-7, 2022 [C]
  2. Warum hat es das Erbbaurecht so schwer? Zur Erhöhung der Akzeptanz von Erbbaurechten durch mehr Marktgerechtigkeit (with D. Löhr), Zeitschrift für Immobilienökonomie 6, 111-136, 2020 [C]
  3. Using a variable neighborhood search to solve the single processor scheduling problem with time restrictions (with R. Benmansour, S. Hanafi and N. Mladenovic), Lecture Notes in Computer Science 11328, 202-215, 2019 [B]
  4. The single processor scheduling problem with time restrictions: complexity and related problems (with R. Benmansour and S. Hanafi), Journal of Scheduling 22 (4), 465-471, 2018 [A]
  5. Using a variable neighborhood search to solve the single processor scheduling problem with time restrictions (with R. Benmansour, S. Hanafi and N. Mladenovic), in: Proceedings of the 6th International Conference on Variable Neighborhood Search (ICVNS 2018), Sithonia (Greece), October 4-7, 2018
  6. Ground leases as subject of financial engineering – a comparison of three models (with D. Löhr), Flächenmanagement und Bodenordnung 6/2017, 242-250, 2017
  7. Digital transformation of road freight transport (with D.G. Seren), Working Paper, Environment Campus Birkenfeld, Campusallee, D-55768 Neubrücke, 2017
  8. Existing results and new developments for the single processor scheduling problem with time restrictions (with R. Benmansour and S. Hanafi), in: Proceedings of the 7th International Conference on Industrial Engineering and Systems Management (IEEE IESM 2017), Saarbrücken (Germany), 216-219, 2017
  9. A variable neighborhood search for the single machine scheduling problem with time restrictions (with R. Benmansour and S. Hanafi), in: A. Duarte, A. Viana, A. Juan, B. Melian, H. Ramalhinho (Eds.), Proceedings of the 12th edition of the Metaheuristics International Conference (MIC 2017), Barcelona (Spain), ISBN 978-84-697-4275-1, 363-365, 2017
  10. Worst-case analysis of the LPT algorithm for single processor scheduling with time restrictions (with F. Chung and R. Graham), OR Spectrum 38(2), 531-540, 2016 [A]
  11. Mixed integer programming formulations for the single processor scheduling problem with time restrictions (with R. Benmansour and A. Artiba), in: I. Kacem, S. Martin, Z. Roka, A. Sava (Eds.), Proceedings of the 45th International Conference on Computers & Industrial Engineering (CIE45), Metz (France), ISBN 978-1-5108-1745-6, 288-296, 2016
  12. Scheduling under resources and temporal constraints (with R. Benmansour and S. Hanafi), in: Proceedings of the International Conference on Industrial Engineering and Systems Management (IEEE IESM 2015), Sevilla (Spain), DOI 10.1109/IESM.2015.7380200, 2016
  13. Iterative relaxation-based heuristic for the single-processor scheduling problem with time restrictions (with R. Benmansour, S. Hanafi and C. Wilbaut), in: Proceedings of the International Conference on Industrial Engineering and Systems Management (IEEE IESM 2015), Sevilla (Spain), ISBN 978-2-9600532-6-5, 496-501, 2016
  14. Modeling the single-processor scheduling problem with time restrictions as a parallel machine scheduling problem (with R. Benmansour and H. Allaoui), in: Z. Hanzalek, G. Kendall, B. McCollum, P. Sucha (Eds.), Proceedings of the 7th Multidisciplinary International Conference on Scheduling: Theory and Applications (MISTA 2015), Prague (Czech Republic), ISSN 2305-249X, 325-330, 2015
  15. An MCDA approach for personal financial planning (with M. Spohn), in: R. Bisdorff, L.C. Dias, P. Meyer, V. Mousseau, M. Pirlot (Eds.), Evaluation and Decision Models with Multiple Criteria: Case Studies, Springer, ISBN 978-3-662-46815-9, 533-562, 2015
  16. On the single-processor scheduling problem with time restrictions (with R. Benmansour and A. Artiba), in: I. Kacem, P. Laroche, Z. Roka (Eds.), Proceedings of the 2014 International Conference on Control, Decision and Information Technologies (CoDIT), Metz (France), ISBN 978-1-4799-6773-5, 242-245, 2014
  17. Single-processor scheduling with time restrictions (with F. Chung and R. Graham), Journal of Scheduling 17(4), 399-403, 2014 [A]
  18. Bounds on single processor scheduling with time restrictions (with F. Chung and R. Graham), in: T. Fliedner, R. Kolisch, A. Naber (Eds.), Proceedings of the 14th International Conference on Project Management and Scheduling, Munich (Germany), ISBN 978-3-00-045630-5, 48-51, 2014
  19. Scheduling personal finances via integer programming (with Y.N. Sotskov), Journal of Mathematical Modelling and Algorithms in Operations Research 12(2), 179-199, 2012
  20. The expenses problem of personal financial planning (with M. Spohn), in: C.V. Karsone (Ed.), Finance and Banking Developments, Nova Science Publishers, ISBN 978-1-60876-329-0, 267-288, 2010
  21. Entscheidungsunterstützung für die persönliche Finanzplanung, Reihe neue betriebswirtschaftliche Forschung Nr. 374, Gabler, ISBN 978-3-8349-2033-1, 2009
  22. Financial scheduling: Feasibility and optimality, in: M.D. Hanna (Ed.), Proceedings of the 20th Annual Conference of the Production and Operations Management Society, Orlando, FL (USA), Full length paper 011-0640, 35 pp., 2009
  23. A reference model for personal financial planning (with G. Schmidt), in: D. Seese, C. Weinhardt, F. Schlottmann (Eds.), Springer Handbook on Information Technology in Finance, Springer, ISBN 978-3-540-29486-7, 209-237, 2008
  24. Personal financial planning with respect to client's goals and preferences, BIT – Banking and Information Technology 9(1), 88-98, 2008 [D]
  25. A new scheduling algorithm for scheduling with limited available processors, in: J.C. Goodale, J. Coelho (Eds.), Proceedings of the 19th Annual Conference of the Production and Operations Management Society, San Diego, CA (USA), Full length paper 008-0490, 12 pp., 2008
  26. A decision support system for personal financial planning, Discussion Paper B0802, Saarland University, Department of Economics, Saarbrücken, 2008
  27. A mixed integer program for personal financial planning (with M. Spohn), Discussion Paper B0801, Saarland University, Department of Economics, Saarbrücken, 2008
  28. OR-basierte Persönliche Finanzplanung, in: A. Oberweis, C.Weinhardt, H. Gimpel, A. Koschmider, V. Pankratius, B. Schnizler (Eds.), eOrganisation: Service-, Prozess-, Market-Engineering, 8. Internationale Tagung Wirtschaftsinformatik, Karlsruhe (Germany), universitätsverlag karlsruhe, Karlsruhe, Band 2, 687-704, 2007 [C]
  29. Deterministic machine scheduling with limited machine availability (with G. Schmidt), in: J. Blazewicz, K.H. Ecker, E. Pesch, G. Schmidt, J. Weglarz (Eds.), Springer Handbook on Scheduling: From Theory to Applications Springer, ISBN 978-3-540-28046-0, 397-424, 2007
  30. Architecture of an information system for personal financial planning (with G. Schmidt), in: M. Radaideh (Ed.), Architecture of Reliable Web Applications Software, Idea Group, ISBN 978-1-599-04183-4, 83-111, 2007
  31. Optimality of Jackson's permutations with respect to limited machine availability (with N. Leshchenko and Y.N. Sotskov), International Transactions in Operational Research 13, 59-74, 2006 [C]
  32. Web services based tools for personal financial planning, in: M. Khosrow-Pour (Ed.), Proceedings of the IRMA International Conference 2006: Emerging Trends and Challenges in Information Technology Management, Idea Group, Hershey, 989-991, 2006
  33. Innovative Software-Unterstützung für Finanzplaner per FiXplan-Check: Präferenz- und Lebensereignisorientierung als Maßstab, Vermögen und Steuern 03/06, 19-21, 2006
  34. EDV-Programme aus Deutschland, Österreich und der Schweiz: Softwareangebote für die persönliche Finanzplanung, Vermögen und Steuern 03/06, 17-19, 2006
  35. Lebensereignis- und präferenzorientierte Persönliche Finanzplanung - Ein Referenzmodell für das Personal Financial Planning, in: B. Eller, G. Schmidt (Eds.), Neue Entwicklungen im Financial Planning, Dezember 2005, Vaduz, Liechtenstein, Hochschulschriften des Instituts für Wirtschaftsinformatik, Hochschule Liechtenstein, ISSN 1818-5444, 49-76, 2006
  36. A service oriented architecture for personal financial planning, in: M. Khosrow-Pour (Ed.), Proc. IRMA International Conference 2005: Managing modern organizations with information technology, Idea Group, Hershey, 1032-1034, 2005
  37. How to model business processes with GPN, in: P. Bernus, M. Fox (Eds.), Proc. ICEIMT'04 International Conference on Enterprise Integration, Modelling and Technology: Knowledge Sharing in the Integrated Enterprise - Interoperability Strategies for the Enterprise Architect, Springer, New York, 289-302, 2005
  38. Process language GPN (with G. Schmidt), in: P. Bernus, K. Mertins, G. Schmidt (Eds.), Springer Handbook on Architectures of Information Systems, 2nd ed., Springer, ISBN 978-3-540-25472-0, 197-214, 2005
  39. XML - the extensible markup language and its use in the field of EDI (with P. Buxmann and E. Wüstner), in: P. Bernus, K. Mertins, G. Schmidt (Eds.), Springer Handbook on Architectures of Information Systems, 2nd ed., Springer, ISBN 978-3-540-25472-0, 391-410, 2005
  40. FiXplan - a value web for computer aided personal finance, in: H. Röck (Ed.), Proc. BIR-2004 Conference: Perspectives in Business Informatics Research, Shaker, Aachen, 47-56, 2004
  41. Vergleichende Untersuchung von Tools zur privaten Finanzplanung, in: S. Geberl, S. Weinmann, D.F. Wiesner (Eds.), Proc. 5. Liechtensteinisches Wirtschaftsinformatik-Symposium an der Fachhochschule Liechtenstein: Impulse aus der Wirtschaftsinformatik, Physica, Heidelberg, 119-133, 2004
  42. Deterministic machine scheduling with limited machine availability (with J. Breit and G. Schmidt), Discussion Paper B0403, Saarland University, Department of Economics, Saarbrücken, 2004
  43. Parallel processor scheduling with limited number of preemptions (with G. Schmidt), SIAM Journal on Computing 32(3), 671-680, 2003 [A]
  44. Ablaufplanungsprobleme mit beschränkter Verfügbarkeit der Prozessoren und beschränkter Anzahl der Präemptionen, Dissertation zur Erlangung des Doktors der Wirtschaftswissenschaft (doctor rerum oeconomicarum) der Rechts- und Wirtschaftswissenschaftlichen Fakultät der Universität des Saarlandes, 2002
  45. Stability of Johnson's schedule with respect to limited machine availability (with T.C. Lai, Y.N. Sotskov and G. Schmidt), International Journal of Production Research 40(17), 4381-4400, 2002 [B]
  46. Parallel processor scheduling with limited number of preemptions (with G. Schmidt), Dagstuhl Seminar Reports 02231, 2002
  47. Parallel processor scheduling with limited number of preemptions (with G. Schmidt), Discussion Paper B0102, Saarland University, Department of Economics, Saarbrücken, 2002
  48. Stability of Johnson's schedule with respect to limited machine availability (with Y.N. Sotskov), in: A. Dolgui, F. Vernadat (Eds.), 3e conférence francophone de Modélisation et de Simulation: Conception, analyse et gestion des systèmes industriels, SCS Publishing House, vol. 2, 683-687, 2001
  49. Two-machine n-job flow-shop problem with limited machine availability (with Y.N. Sotskov), in: S. Dempe, H. Schreier, I. Schliermeyer (Eds.), Proc. 14th workshop on discrete optimization, Holzhau, Erzgebirge, May 23-26, 2000, Technische Universität Bergakademie Freiberg, 70-73, 2000
  50. Micropayments im DFN (with D. Bremer, G. Schmidt and K. Zimmer), DFN-Mitteilungen 47(6), 19-21, 1998
  51. Designing a Generic System for Process-Oriented Support of Business Transactions Using the Internet (with D. Bremer, G. Schmidt and K. Zimmer), Electronic Markets 8(2), 43-46, 1998
Talks
  1. Ron Graham's pioneering work on scheduling algorithms, La Jolla, USA 08/2022
  2. Worst-case Analyse von Approximationsalgorithmen, Nacht der Wissenschaft, Birkenfeld, Germany, 12/2020
  3. Worst-case analysis and competitive analysis of algorithms, La Jolla, USA, 08/2019
  4. Existing results and new developments for the single processor scheduling problem with time restrictions, 7th International Conference on Industrial Engineering and Systems Management (IEEE IESM 2017), Saarbrücken, Germany, 10/2017
  5. Scheduling, Nacht der Wissenschaft, Birkenfeld, Germany, 11/2015
  6. Mixed integer programming formulations for the single processor scheduling problem with time restrictions, 45th International Conference on Computers & Industrial Engineering (CIE45), Metz, France, 10/2015
  7. Komplexität von Optimierungsproblemen, Gastvortrag Hochschule Darmstadt, Darmstadt, Germany, 01/2015
  8. On the single-processor scheduling problem with time restrictions, 2nd International Conference on Control, Decision and Information Technologies, Metz, France, 11/2014
  9. Bounds on single processor scheduling with time restrictions, 14th International Conference on Project Management and Scheduling, Munich, Germany, 03/2014
  10. Single processor scheduling with time restrictions, 26th EURO-INFORMS Conference, Rome, Italy (Session Chair Machine Scheduling Problems), 07/2013
  11. Single processor scheduling with time restrictions, Tagung der Wissenschaftlichen Kommission Operations Research im Verband der Hochschullehrer für Betriebswirtschaft e.V. und der AG Projektmanagement und Scheduling der Gesellschaft für Operations Research, Wuppertal, Germany, 02/2013
  12. Optimierungsprobleme, Antrittsvorlesung, Professur für Quantitative Betriebswirtschaftslehre, Birkenfeld, Germany, 05/2011
  13. Scheduling: Theory and Applications, UCSD CSE Talks, San Diego, USA, 02/2011
  14. Financial Scheduling: Feasibility and Optimality, Production and Operations Management Society (POMS) 2009, Orlando, USA, 05/2009
  15. A new scheduling algorithm for scheduling with limited available processors, Production and Operations Management Society (POMS) 2008, La Jolla, USA (Session Chair Scheduling), 05/2008
  16. Ablaufplanung, Habilitationsvortrag, Rechts- und Wirtschaftswissenschaftliche Fakultät der Universität des Saarlandes, Saarbrücken, Germany, 04/2008
  17. Personal financial planning with respect to client's goals and preferences, Multikonferenz Wirtschaftsinformatik 2008 (MKWI 2008), Munich, Germany, 02/2008
  18. OR-basierte Persönliche Finanzplanung, Wirtschaftsinformatik 2007 (WI 2007), Karlsruhe, Germany, 02/2007
  19. Web services based tools for personal financial planning, International Conference on Managing Modern Organizations With Information Technology (IRMA'06), Washington, USA, 05/2006
  20. FiXplan - eine Software zur Persönlichen Finanzplanung, Vortrag bei CosmosDirekt, Saarbrücken, Germany, 01/2006
  21. Präferenz- und Lebensereignisorientierte Persönliche Finanzplanung, Konferenz zu Neuen Entwicklungen im Financial Planning, Vaduz, Liechtenstein 12/2005
  22. A service oriented architecture for personal financial planning, International Conference on Managing Modern Organizations With Information Technology (IRMA'05), San Diego, USA (Session Chair Service Oriented Architectures / Web Services), 05/2005
  23. How to model business processes with GPN, International Conference on Enterprise Integration and Modelling Technology (ICEIMT'04), Toronto, Canada, 10/2004
  24. FiXplan - a value web for computer aided personal finance, International Conference on Perspectives in Business Informatics Research (BIR-2004), Rostock, Germany, 10/2004
  25. Vergleichende Untersuchung von Tools zur privaten Finanzplanung, Impulse der Wirtschaftsinformatik - 5. Liechtensteinisches Wirtschaftsinformatik-Symposium, Vaduz, Liechtenstein, 05/2004
  26. Parallel processor scheduling with limited number of preemptions, INFORMS Annual Meeting 2002, San José, USA, 11/2002
  27. Scheduling in computer and manufacturing systems, Dagstuhl-Seminar 02231, Schloss Dagstuhl, Wadern, Germany, 06/2002
  28. Ablaufplanungsprobleme mit beschränkt verfügbaren Prozessoren und beschränkter Anzahl von Präemptionen, Disputation, Rechts- und Wirtschaftswissenschaftliche Fakultät der Universität des Saarlandes, Saarbrücken, Germany, 03/2002
Prof. Dr. Oliver Braun
Prof. Dr. Oliver Braun
Professor FB Umweltwirtschaft/-recht - FR Umweltwirtschaft

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+49 6782 17-1543

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