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Modelling - In memory of Åsa Hallefjord

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Publications

  • Å. Hallefjord and K. Jörnsten, Multicommodity network flows with conversions, Opsearch 20(2)(1983)89– 98.

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  • Å. Hallefjord and K. Jörnsten, A note on relaxed gravity models, Environment and Planning A 17(1985)597–603.

    Google Scholar 

  • Å. Hallefjord and K. Jörnsten, An entropy target point approach to multiobjective programming, International Journal of Systems Science 17(1986)639 – 653.

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  • Å. Hallefjord and K. Jörnsten, Gravity models with multiple objectives – theory and applications, Transportation Research 20B(1986)19 – 39.

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  • O. Eriksson, Å. Hallefjord and K. Jörnsten, A long range forestry planning problem with multiple objectives, European Journal of Operational Research 26(1986)123 –133.

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  • Å. Hallefjord, K. Jörnsten, S. Storøy and S.W. Wallace, A comment on the article “inspection and maintenance optimizations methods” by K.M. Mjelde, European Journal of Operational Research 28(1987)226 – 227.

  • P. Bogetoft, Å. Hallefjord and M. Kok, On the convergence of reference point methods in multiobjective programming, European Journal of Operational Research 34(1988)56 – 68.

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  • Å. Hallefjord and K. Jörnsten, Constraint generation and surrogate relaxation, Journal of Information and Optimization Sciences 9(2)(1988)1 – 4.

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  • Å. Hallefjord and K. Jörnsten, A critical comment on integer goal programming, Journal of the Operational Research Society 39(1988)101 – 104.

    Article  Google Scholar 

  • H. Asheim, Å. Hallefjord and D. Haugland, Models for petroleum field exploitation, European Journal of Operational Research 37(1988)58 – 72.

    Article  Google Scholar 

  • R. Aboudi, Å. Hallefjord, C. Helgesen, R. Helming, K. Jörnsten, A.S. Pettersen, T. Raum and P. Spence, A mathematical programming model for the development of petroleum fields and transport systems, European Journal of Operational Research 43(1989)13 – 25.

    Article  Google Scholar 

  • R. Aboudi, Å. Hallefjord, R. Helming, and K. Jörnsten, A note on the pivot and complement heuristic for 0–1 programming problems, Operations Research Letters 8(1989)21– 23.

    Article  Google Scholar 

  • Å. Hallefjord and S. Storøy, Aggregation and disaggregation in integer programming problems, Operations Research 38(1990)619 –623.

    Article  Google Scholar 

  • J. Barcelo, E. Fernandez, Å. Hallefjord and K. Jörnsten, Lagrangean relaxation and constraint generation procedures for capacitated plant location problems with single sourcing, OR Spectrum 12(1990)79 – 88.

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  • R. Aboudi, Å. Hallefjord and K. Jörnsten, A facet generation and relaxation technique applied to an assignment problem with side constraints, European Journal of Operational Research 50(1991)335 –344.

    Article  Google Scholar 

  • Å. Hallefjord, K. Jörnsten and P. Värbrand, Solving large scale generalized assignment problems – an aggregation/disaggregation approach, European Journal of Operational Research 64(1993)103 –114.

    Article  Google Scholar 

  • Å. Hallefjord, R. Helming and K. Jörnsten, Cooperative game theory: A note on an algorithm that probably never was implemented, Asia-Pacific Journal of Operational Research 10 (1993)121– 29.

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  • Å. Hallefjord, K. Jörnsten and S. Storøy, Traffic equilibrium paradoxes when travel demand is elastic, Asia-Pacific Journal of Operational Research 11(1994)41 –50.

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  • Å. Hallefjord, R. Helming and K. Jörnsten, Computing the nucleolus when the characteristic function is given implicitly: A constraint generation approach, International Journal of Game Theory 24(1995)357 – 372.

    Article  Google Scholar 

  • Å. Hallefjord and S.W. Wallace, Work patterns in project scheduling, Annals of Operations Research (1998), this volume.

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Wallace, S. Modelling - In memory of Åsa Hallefjord. Annals of Operations Research 82, 0 (1998). https://doi.org/10.1023/A:1018947727694

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  • DOI: https://doi.org/10.1023/A:1018947727694

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