Gerhard J. Woeginger

Orcid: 0000-0001-8816-2693

Affiliations:
  • RWTH Aachen University, Department of Computer Science, Germany
  • Eindhoven University of Technology, Department of Mathematics and Computer Science, The Netherlands


According to our database1, Gerhard J. Woeginger authored at least 391 papers between 1988 and 2023.

Collaborative distances:
  • Dijkstra number2 of three.
  • Erdős number3 of two.

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Bibliography

2023
Multiprocessor jobs, preemptive schedules, and one-competitive online algorithms.
Oper. Res. Lett., November, 2023

Recognising permuted Demidenko matrices.
Oper. Res. Lett., September, 2023

Hardness of flow time minimization in a crossdock with a single door and asymmetric handover relations.
Oper. Res. Lett., May, 2023

Non-Preemptive Tree Packing.
Algorithmica, March, 2023

A Linear Time Algorithm for Linearizing Quadratic and Higher-Order Shortest Path Problems.
Proceedings of the Integer Programming and Combinatorial Optimization, 2023

2022
Continuous facility location on graphs.
Math. Program., 2022

A note on the complexity of the bilevel bottleneck assignment problem.
4OR, 2022

2021
Fine-grained Complexity Analysis of Two Classic TSP Variants.
ACM Trans. Algorithms, 2021

The subset sum game revisited.
Theory Comput. Syst., 2021

A linear time algorithm for the robust recoverable selection problem.
Discret. Appl. Math., 2021

The transportation problem with conflicts.
Ann. Oper. Res., 2021

Dispersing Obnoxious Facilities on a Graph.
Algorithmica, 2021

The trouble with the second quantifier.
4OR, 2021

Linearizable Special Cases of the Quadratic Shortest Path Problem.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2021

An Investigation of the Recoverable Robust Assignment Problem.
Proceedings of the 16th International Symposium on Parameterized and Exact Computation, 2021

2020
Timeline-based planning over dense temporal domains.
Theor. Comput. Sci., 2020

A faster algorithm for the continuous bilevel knapsack problem.
Oper. Res. Lett., 2020

Travelling salesman paths on Demidenko matrices.
CoRR, 2020

Non-Monochromatic and Conflict-Free Colorings on Tree Spaces and Planar Network Spaces.
Algorithmica, 2020

2019
Computation and Complexity.
Proceedings of the Computing and Software Science - State of the Art and Perspectives, 2019

The complexity of Dominating Set in geometric intersection graphs.
Theor. Comput. Sci., 2019

Domination When the Stars Are Out.
ACM Trans. Algorithms, 2019

Fully-Dynamic and Kinetic Conflict-Free Coloring of Intervals with Respect to Points.
Int. J. Comput. Geom. Appl., 2019

Good Things Come to Those Who Swap Objects on Paths.
CoRR, 2019

2018
The triangle scheduling problem.
J. Sched., 2018

Preface to the Special Issue on Computer Science in Russia 2016.
Theory Comput. Syst., 2018

Group activity selection problem with approval preferences.
Int. J. Game Theory, 2018

New special cases of the Quadratic Assignment Problem with diagonally structured coefficient matrices.
Eur. J. Oper. Res., 2018

Robust balanced optimization.
EURO J. Comput. Optim., 2018

Some Easy and Some Not so Easy Geometric Optimization Problems.
Proceedings of the Approximation and Online Algorithms - 16th International Workshop, 2018

The Open Shop Scheduling Problem.
Proceedings of the 35th Symposium on Theoretical Aspects of Computer Science, 2018

Graph Similarity and Approximate Isomorphism.
Proceedings of the 43rd International Symposium on Mathematical Foundations of Computer Science, 2018

Timeline-Based Planning over Dense Temporal Domains with Trigger-less Rules is NP-Complete.
Proceedings of the 19th Italian Conference on Theoretical Computer Science, 2018

Non-monochromatic and Conflict-Free Coloring on Tree Spaces and Planar Network Spaces.
Proceedings of the Computing and Combinatorics - 24th International Conference, 2018

Committee Selection with Intraclass and Interclass Synergies.
Proceedings of the Thirty-Second AAAI Conference on Artificial Intelligence, 2018

2017
The one-dimensional Euclidean domain: finitely many obstructions are not enough.
Soc. Choice Welf., 2017

Partitioning Perfect Graphs into Stars.
J. Graph Theory, 2017

Scheduling Two Agents on a Single Machine: A Parameterized Analysis of NP-hard Problems.
CoRR, 2017

Dynamic and Kinetic Conflict-Free Coloring of Intervals with Respect to Points.
CoRR, 2017

The multi-stripe travelling salesman problem.
Ann. Oper. Res., 2017

The Dominating Set Problem in Geometric Intersection Graphs.
Proceedings of the 12th International Symposium on Parameterized and Exact Computation, 2017

2016
Finding large degree-anonymous subgraphs is hard.
Theor. Comput. Sci., 2016

Are there any nicely structured preference profiles nearby?
Math. Soc. Sci., 2016

Linearizable special cases of the QAP.
J. Comb. Optim., 2016

Bilevel Knapsack with Interdiction Constraints.
INFORMS J. Comput., 2016

The triangle scheduling problem.
CoRR, 2016

The Focus of Attention Problem.
Algorithmica, 2016

Vertex Cover Meets Scheduling.
Algorithmica, 2016

Balanced Optimization with Vector Costs.
Proceedings of the Approximation and Online Algorithms - 14th International Workshop, 2016

Precedence-Constrained Scheduling Problems Parameterized by Partial Order Width.
Proceedings of the Discrete Optimization and Operations Research, 2016

2015
How to Put Through Your Agenda in Collective Binary Decisions.
ACM Trans. Economics and Comput., 2015

Network-Based Vertex Dissolution.
SIAM J. Discret. Math., 2015

Vote trading and subset sums.
Oper. Res. Lett., 2015

Preface.
Math. Program., 2015

Approximability and parameterized complexity of multicover by c-intervals.
Inf. Process. Lett., 2015

Geometric versions of the three-dimensional assignment problem under general norms.
Discret. Optim., 2015

Well-solvable cases of the QAP with block-structured matrices.
Discret. Appl. Math., 2015

The (Weighted) Metric Dimension of Graphs: Hard and Easy Cases.
Algorithmica, 2015

Scheduling Two Competing Agents When One Agent Has Significantly Fewer Jobs.
Proceedings of the 10th International Symposium on Parameterized and Exact Computation, 2015

A New Tractable Case of the QAP with a Robinson Matrix.
Proceedings of the Combinatorial Optimization and Applications, 2015

2014
A Study on the Computational Complexity of the Bilevel Knapsack Problem.
SIAM J. Optim., 2014

Two hardness results for Gamson's game.
Soc. Choice Welf., 2014

Bilevel programming and the separation problem.
Math. Program., 2014

Investigations on the step-based research indices of Chambers and Miller.
J. Informetrics, 2014

A Multivariate Complexity Analysis of Lobbying in Multiple Referenda.
J. Artif. Intell. Res., 2014

Four-point conditions for the TSP: The complete complexity classification.
Discret. Optim., 2014

Geometric versions of the 3-dimensional assignment problem under general norms.
CoRR, 2014

Planar 3-dimensional assignment problems with Monge-like cost arrays.
CoRR, 2014

Parameterized Algorithmics for Computational Social Choice: Nine Research Challenges.
CoRR, 2014

Network-Based Dissolution.
Proceedings of the Mathematical Foundations of Computer Science 2014, 2014

Star Partitions of Perfect Graphs.
Proceedings of the Automata, Languages, and Programming - 41st International Colloquium, 2014

Another Look at the Shoelace TSP: The Case of Very Old Shoes.
Proceedings of the Fun with Algorithms - 7th International Conference, 2014

2013
Nothing New about Equiangular Polygons.
Am. Math. Mon., 2013

A characterization of the single-crossing domain.
Soc. Choice Welf., 2013

Uniqueness in quadratic and hyperbolic 0-1 programming problems.
Oper. Res. Lett., 2013

Motion Planning with Pulley, Rope, and Baskets.
Theory Comput. Syst., 2013

A hardness result for core stability in additive hedonic games.
Math. Soc. Sci., 2013

Analysis of multi-stage open shop processing systems.
Math. Program., 2013

The three-dimensional matching problem in Kalmanson matrices.
J. Comb. Optim., 2013

Fully decomposable split graphs.
Eur. J. Comb., 2013

Two hardness results for core stability in hedonic coalition formation games.
Discret. Appl. Math., 2013

Realizing Small Tournaments Through Few Permutations.
Acta Cybern., 2013

Complexity and in-approximability of a selection problem in robust optimization.
4OR, 2013

Core Stability in Hedonic Coalition Formation.
Proceedings of the SOFSEM 2013: Theory and Practice of Computer Science, 2013

The Complexity of Finding a Large Subgraph under Anonymity Constraints.
Proceedings of the Algorithms and Computation - 24th International Symposium, 2013

A Complexity and Approximability Study of the Bilevel Knapsack Problem.
Proceedings of the Integer Programming and Combinatorial Optimization, 2013

2012
An algorithmic analysis of the Honey-Bee game.
Theor. Comput. Sci., 2012

Scheduling of pipelined operator graphs.
J. Sched., 2012

Another well-solvable case of the QAP: Maximizing the job completion time variance.
Oper. Res. Lett., 2012

Complexity and approximation of an area packing problem.
Optim. Lett., 2012

Between a rock and a hard place: the two-to-one assignment problem.
Math. Methods Oper. Res., 2012

Guest Editorial to the special issue "Operations Research in Health Care" (EURO XXIII, July 5-8, 2009, Bonn).
Eur. J. Oper. Res., 2012

The x-and-y-axes travelling salesman problem.
Eur. J. Oper. Res., 2012

The interval ordering problem.
Discret. Appl. Math., 2012

Caching Is Hard - Even in the Fault Model.
Algorithmica, 2012

An algorithmic study of switch graphs.
Acta Informatica, 2012

Group Activity Selection Problem.
Proceedings of the Internet and Network Economics - 8th International Workshop, 2012

Transportation under Nasty Side Constraints.
Proceedings of the Mathematical Foundations of Computer Science 2012, 2012

Cinderella versus the Wicked Stepmother.
Proceedings of the Theoretical Computer Science, 2012

Divorcing Made Easy.
Proceedings of the Fun with Algorithms - 6th International Conference, 2012

2011
Analysis of the dial-a-ride problem of Hunsaker and Savelsbergh.
Oper. Res. Lett., 2011

A well-solvable special case of the bounded knapsack problem.
Oper. Res. Lett., 2011

Graph coloring with rejection.
J. Comput. Syst. Sci., 2011

Charlemagne's Challenge: The Periodic Latency Problem.
Oper. Res., 2011

Unbounded knapsack problems with arithmetic weight sequences.
Eur. J. Oper. Res., 2011

The Wiener maximum quadratic assignment problem.
Discret. Optim., 2011

Hamiltonian index is NP-complete.
Discret. Appl. Math., 2011

The Northwest corner rule revisited.
Discret. Appl. Math., 2011

Paths, trees and matchings under disjunctive constraints.
Discret. Appl. Math., 2011

String execution time for finite languages: Max is easy, min is hard.
Autom., 2011

The Cinderella Game on Holes and Anti-holes.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2011

Reachability and Deadlocking Problems in Multi-stage Scheduling.
Proceedings of the Reachability Problems - 5th International Workshop, 2011

Unweighted Coalitional Manipulation under the Borda Rule Is NP-Hard.
Proceedings of the IJCAI 2011, 2011

Two-Bounded-Space Bin Packing Revisited.
Proceedings of the Algorithms - ESA 2011, 2011

2010
The Alcuin Number of a Graph and Its Connections to the Vertex Cover Number.
SIAM J. Discret. Math., 2010

Parallel machine scheduling with nested job assignment restrictions.
Oper. Res. Lett., 2010

How * not * to solve a Sudoku.
Oper. Res. Lett., 2010

The approximability of three-dimensional assignment problems with bottleneck objective.
Optim. Lett., 2010

Pinpointing the complexity of the interval min-max regret knapsack problem.
Discret. Optim., 2010

An Algorithmic Comparison of Three Scientific Impact Indices.
Acta Cybern., 2010

The Traveling Salesman Problem under Squared Euclidean Distances.
Proceedings of the 27th International Symposium on Theoretical Aspects of Computer Science, 2010

2009
Partitioning graphs into connected parts.
Theor. Comput. Sci., 2009

How hard is it to find extreme Nash equilibria in network congestion games?
Theor. Comput. Sci., 2009

A new family of scientific impact measures: The generalized Kosmulski-indices.
Scientometrics, 2009

The hardness of train rearrangements.
Oper. Res. Lett., 2009

Threshold aggregation of multi-graded rankings.
Math. Soc. Sci., 2009

The complexity of computing the Muirhead-Dalton distance.
Math. Soc. Sci., 2009

Generalizations of Egghe's g-index.
J. Assoc. Inf. Sci. Technol., 2009

A comment on parallel-machine scheduling under a grade of service provision to minimize makespan.
Inf. Process. Lett., 2009

Uncapacitated single and multiple allocation p-hub center problems.
Comput. Oper. Res., 2009

Polygons with inscribed circles and prescribed side lengths.
Appl. Math. Lett., 2009

Combinatorial Optimization Problems with Conflict Graphs.
Proceedings of the 8th Cologne-Twente Workshop on Graphs and Combinatorial Optimization, 2009

2008
Getting the best response for your erg.
ACM Trans. Algorithms, 2008

Multigraph realizations of degree sequences: Maximization is easy, minimization is hard.
Oper. Res. Lett., 2008

The computational complexity of graph contractions II: Two tough polynomially solvable cases.
Networks, 2008

The computational complexity of graph contractions I: Polynomially solvable and NP-complete cases.
Networks, 2008

An axiomatic characterization of the Hirsch-index.
Math. Soc. Sci., 2008

An axiomatic analysis of Egghe's g-index.
J. Informetrics, 2008

A symmetry axiom for scientific impact indices.
J. Informetrics, 2008

Tight bounds for break minimization in tournament scheduling.
J. Comb. Theory, Ser. A, 2008

The Magnus-Derek game revisited.
Inf. Process. Lett., 2008

The problem of the moody chess players.
Inf. Process. Lett., 2008

Four Non-Deterministic Programming Exercises.
Bull. EATCS, 2008

The Freudenthal Problem and its Ramifications (Part III).
Bull. EATCS, 2008

Open problems around exact algorithms.
Discret. Appl. Math., 2008

2-piercings via graph theory.
Discret. Appl. Math., 2008

The Alcuin Number of a Graph.
Proceedings of the Algorithms, 2008

2007
Approximation schemes for a class of subset selection problems.
Theor. Comput. Sci., 2007

Preface.
Theor. Comput. Sci., 2007

Complexity of the job insertion problem in multi-stage scheduling.
Oper. Res. Lett., 2007

Quadratic programming and combinatorial minimum weight product problems.
Math. Program., 2007

Backbone colorings for graphs: Tree and path backbones.
J. Graph Theory, 2007

Steiner diagrams and k-star hubs.
J. Discrete Algorithms, 2007

Roll cutting in the curtain industry, or: A well-solvable allocation problem.
Eur. J. Oper. Res., 2007

The Freudenthal Problem and its Ramifications (Part II).
Bull. EATCS, 2007

On the complexity of cake cutting.
Discret. Optim., 2007

A polynomial time equivalence between DNA sequencing and the exact perfect matching problem.
Discret. Optim., 2007

Eliminating graphs by means of parallel knock-out schemes.
Discret. Appl. Math., 2007

An Approximation Scheme For Cake Division With A Linear Number Of Cuts.
Comb., 2007

Very Large-Scale Neighborhoods with Performance Guarantees for Minimizing Makespan on Parallel Machines.
Proceedings of the Approximation and Online Algorithms, 5th International Workshop, 2007

2006
On the robust assignment problem under a fixed number of cost scenarios.
Oper. Res. Lett., 2006

Exact algorithms for the Hamiltonian cycle problem in planar graphs.
Oper. Res. Lett., 2006

The traveling salesman problem with few inner points.
Oper. Res. Lett., 2006

Scheduling with step-improving processing times.
Oper. Res. Lett., 2006

The constrained minimum weighted sum of job completion times problem.
Math. Program., 2006

A Note on Fair Division under Interval Uncertainty.
Int. J. Uncertain. Fuzziness Knowl. Based Syst., 2006

On the dimension of simple monotonic games.
Eur. J. Oper. Res., 2006

Performance of a Very Large-Scale Neighborhood for Minimizing Makespan on Parallel Machines.
Electron. Notes Discret. Math., 2006

Timetabling problems at the TU Eindhoven.
Electron. Notes Discret. Math., 2006

Some Problems around Traveling Salesmen, Dart Boards, and Euro-coins.
Bull. EATCS, 2006

The Freudenthal Problem and its Ramifications (Part I).
Bull. EATCS, 2006

Sports tournaments, home-away assignments, and the break minimization problem.
Discret. Optim., 2006

Well-solvable instances for the partition problem.
Appl. Math. Lett., 2006

Planar Graph Coloring Avoiding Monochromatic Subgraphs: Trees and Paths Make It Difficult.
Algorithmica, 2006

Four point conditions and exponential neighborhoods for symmetric TSP.
Proceedings of the Seventeenth Annual ACM-SIAM Symposium on Discrete Algorithms, 2006

2005
Graph colorings.
Theor. Comput. Sci., 2005

Combinatorial approximation algorithms: a comparative review.
Oper. Res. Lett., 2005

The no-wait flow-shop paradox.
Oper. Res. Lett., 2005

Approximation of the supply scheduling problem.
Oper. Res. Lett., 2005

Faster algorithms for computing power indices in weighted voting games.
Math. Soc. Sci., 2005

The two-dimensional cutting stock problem revisited.
Math. Program., 2005

Complexity and Approximability of Double Digest.
J. Bioinform. Comput. Biol., 2005

A comment on scheduling two parallel machines with capacity constraints.
Discret. Optim., 2005

Decomposition of integer matrices and multileaf collimator sequencing.
Discret. Appl. Math., 2005

Minimizing Makespan and Preemption Costs on a System of Uniform Machines.
Algorithmica, 2005

Paths and cycles in colored graphs.
Australas. J Comb., 2005

A Note on Semi-online Machine Covering.
Proceedings of the Approximation and Online Algorithms, Third International Workshop, 2005

Roll Cutting in the Curtain Industry.
Proceedings of the Algorithms, 2005

Two Remarks on Reconstructing Binary Vectors from Their Absorbed Projections.
Proceedings of the Discrete Geometry for Computer Imagery, 12th International Conference, 2005

05301 Abstracts Collection - Exact Algorithms and Fixed-Parameter Tractability.
Proceedings of the Exact Algorithms and Fixed-Parameter Tractability, 24.-27. July 2005, 2005

05301 Summary - Exact Algorithms and Fixed-Parameter Tractability.
Proceedings of the Exact Algorithms and Fixed-Parameter Tractability, 24.-27. July 2005, 2005

2004
Seventeen lines and one-hundred-and-one points.
Theor. Comput. Sci., 2004

It is tough to be a plumber.
Theor. Comput. Sci., 2004

Radio Labeling with Preassigned Frequencies.
SIAM J. Optim., 2004

Inapproximability results for no-wait job shop scheduling.
Oper. Res. Lett., 2004

On the nearest neighbor rule for the traveling salesman problem.
Oper. Res. Lett., 2004

Minimum-cost dynamic flows: The series-parallel case.
Networks, 2004

All-norm approximation algorithms.
J. Algorithms, 2004

Project scheduling with irregular costs: complexity, approximability, and algorithms.
Acta Informatica, 2004

Exact (Exponential) Algorithms for the Dominating Set Problem.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2004

The Computational Complexity of the Minimum Weight Processor Assignment Problem.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2004

Parallel Knock-Out Schemes in Networks.
Proceedings of the Mathematical Foundations of Computer Science 2004, 2004

Space and Time Complexity of Exact Algorithms: Some Open Problems (Invited Talk).
Proceedings of the Parameterized and Exact Computation, First International Workshop, 2004

Approximation Schemes for Broadcasting in Heterogenous Networks.
Proceedings of the Approximation, 2004

2003
On tiling under tomographic constraints.
Theor. Comput. Sci., 2003

Random Redundant Storage in Disk Arrays: Complexity of Retrieval Problems.
IEEE Trans. Computers, 2003

Banks winners in tournaments are difficult to recognize.
Soc. Choice Welf., 2003

Local search for the minimum label spanning tree problem with bounded color classes.
Oper. Res. Lett., 2003

The two-machine open shop problem: To fit or not to fit, that is the question.
Oper. Res. Lett., 2003

A note on scoring rules that respect majority in choice and elimination.
Math. Soc. Sci., 2003

Preemptive scheduling with rejection.
Math. Program., 2003

A note on the complexity of determining optimal strategies in games with common payoffs.
Math. Methods Oper. Res., 2003

The geometric maximum traveling salesman problem.
J. ACM, 2003

The complexity of economic equilibria for house allocation markets.
Inf. Process. Lett., 2003

How to detect a counterfeit coin: Adaptive versus non-adaptive solutions.
Inf. Process. Lett., 2003

Complexity and approximability results for slicing floorplan designs.
Eur. J. Oper. Res., 2003

Preface: Volume 13.
Electron. Notes Discret. Math., 2003

On the approximability of average completion time scheduling under precedence constraints.
Discret. Appl. Math., 2003

Recognizing DNA graphs is difficult.
Discret. Appl. Math., 2003

Which matrices are immune against the transportation paradox?
Discret. Appl. Math., 2003

The post correspondence problem over a unary alphabet.
Appl. Math. Lett., 2003

The Complexity of Graph Contractions.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2003

Backbone Colorings for Networks.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2003

A Faster FPT Algorithm for Finding Spanning Trees with Many Leaves.
Proceedings of the Mathematical Foundations of Computer Science 2003, 2003

A Lower Bound for Cake Cutting.
Proceedings of the Algorithms, 2003

Double Digest Revisited: Complexity and Approximability in the Presence of Noisy Data.
Proceedings of the Computing and Combinatorics, 9th Annual International Conference, 2003

2002
Off-line temporary tasks assignment.
Theor. Comput. Sci., 2002

Solution of a problem in DNA computing.
Theor. Comput. Sci., 2002

Squares from Products of Consecutive Integers.
Am. Math. Mon., 2002

Embeddings of planar graphs that minimize the number of long-face cycles.
Oper. Res. Lett., 2002

An efficient algorithm for a class of constraint satisfaction problems.
Oper. Res. Lett., 2002

The quadratic 0-1 knapsack problem with series-parallel support.
Oper. Res. Lett., 2002

On-line scheduling of unit time jobs with rejection: minimizing the total completion time.
Oper. Res. Lett., 2002

The mathematics of playing golf, or: a new class of difficult non-linear mixed integer programs.
Math. Program., 2002

Resource augmentation for online bounded space bin packing.
J. Algorithms, 2002

A faster off-line algorithm for the TCP acknowledgement problem.
Inf. Process. Lett., 2002

Approximation Algorithms for Scheduling Malleable Tasks Under Precedence Constraints.
Int. J. Found. Comput. Sci., 2002

Open problems in the theory of scheduling.
Bull. EATCS, 2002

Some Comments on Sequencing with Controllable Processing Times.
Computing, 2002

More About Subcolorings.
Computing, 2002

The complexity of multiple wordlength assignment.
Appl. Math. Lett., 2002

Caching for Web Searching.
Algorithmica, 2002

A PTAS for single machine scheduling with controllable processing times.
Acta Cybern., 2002

DNA Sequencing, Eulerian Graphs, and the Exact Perfect Matching Problem.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2002

Planar Graph Coloring with Forbidden Subgraphs: Why Trees and Paths Are Dangerous.
Proceedings of the Algorithm Theory, 2002

The mathematics of playing golf.
Proceedings of the Thirteenth Annual ACM-SIAM Symposium on Discrete Algorithms, 2002

How to cut a cake almost fairly.
Proceedings of the Thirteenth Annual ACM-SIAM Symposium on Discrete Algorithms, 2002

An Approximation Scheme for Cake Division with a Linear Number of Cuts.
Proceedings of the Algorithms, 2002

Radio Labeling with Pre-assigned Frequencies.
Proceedings of the Algorithms, 2002

2001
A polynomially solvable special case of the unbounded knapsack problem.
Oper. Res. Lett., 2001

A very difficult scheduling problem with communication delays.
Oper. Res. Lett., 2001

A comment on consecutive-2-out-of-<i>n</i> systems.
Oper. Res. Lett., 2001

Hardness of approximation of the discrete time-cost tradeoff problem.
Oper. Res. Lett., 2001

The reconstruction of polyominoes from their orthogonal projections.
Inf. Process. Lett., 2001

Non-Approximability Results for Scheduling Problems with Minsum Criteria.
INFORMS J. Comput., 2001

Resource augmentation for online bounded space bin packing
Electron. Colloquium Comput. Complex., 2001

When does a dynamic programming formulation guarantee the existence of an FPTAS?
Electron. Colloquium Comput. Complex., 2001

A note on the depth function of combinatorial optimization problems.
Discret. Appl. Math., 2001

Linear time approximation scheme for the multiprocessor open shop problem.
Discret. Appl. Math., 2001

A Note on Tiling under Tomographic Constraints
CoRR, 2001

The complexity of coloring graphs without long induced paths.
Acta Cybern., 2001

De Bruijn Graphs and DNA Graphs.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2001

Complexity of Coloring Graphs without Forbidden Induced Subgraphs.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2001

Assigning chain-like tasks to a chain-like network.
Proceedings of the Twelfth Annual Symposium on Discrete Algorithms, 2001

The Buffer Minimization Problem for Multiprocessor Scheduling with Conflicts.
Proceedings of the Automata, Languages and Programming, 28th International Colloquium, 2001

Buying a Constant Competitive Ratio for Paging.
Proceedings of the Algorithms, 2001

Exact Algorithms for NP-Hard Problems: A Survey.
Proceedings of the Combinatorial Optimization, 2001

2000
A polynomial time approximation scheme for the two-stage multiprocessor flow shop problem.
Theor. Comput. Sci., 2000

A comment on scheduling on uniform machines under chain-type precedence constraints.
Oper. Res. Lett., 2000

Monge strikes again: optimal placement of web proxies in the internet.
Oper. Res. Lett., 2000

Semi-online scheduling with decreasing job sizes.
Oper. Res. Lett., 2000

On-line scheduling on a single machine: maximizing the number of early jobs.
Oper. Res. Lett., 2000

A study of exponential neighborhoods for the Travelling Salesman Problem and for the Quadratic Assignment Problem.
Math. Program., 2000

A PTAS for Minimizing the Total Weighted Completion Time on Identical Parallel Machines.
Math. Oper. Res., 2000

When Does a Dynamic Programming Formulation Guarantee the Existence of a Fully Polynomial Time Approximation Scheme (FPTAS)?
INFORMS J. Comput., 2000

The Maximum Travelling Salesman Problem on Symmetric Demidenko Matrices.
Discret. Appl. Math., 2000

Introduction.
Algorithmica, 2000

Pseudo-Hamiltonian Graphs.
Acta Cybern., 2000

Scheduling a pipelined operator graph.
Proceedings of the Eleventh Annual ACM-SIAM Symposium on Discrete Algorithms, 2000

Approximability and in-approximability results for no-wait shop scheduling.
Proceedings of the 41st Annual Symposium on Foundations of Computer Science, 2000

1999
Approximability and Nonapproximability Results for Minimizing Total Flow Time on a Single Machine.
SIAM J. Comput., 1999

Optimal on-line algorithms for variable-sized bin covering.
Oper. Res. Lett., 1999

Approximation algorithms for the multiprocessor open shop scheduling problem.
Oper. Res. Lett., 1999

A linear-time algorithm for the bottleneck transportation problem with a fixed number of sources.
Oper. Res. Lett., 1999

A note on the bottleneck graph partition problem.
Networks, 1999

Minimum-cost strong network orientation problems: Classification, complexity, and algorithms.
Networks, 1999

Erratum: The Travelling Salesman and the PQ-Tree.
Math. Oper. Res., 1999

A note on the complexity of the transportation problem with a permutable demand vector.
Math. Methods Oper. Res., 1999

The Steiner Tree Problem in Kalmanson Matrices and in Circulant Matrices.
J. Comb. Optim., 1999

An Approximation Scheme for Minimizing Agreeably Weighted Variance on a Single Machine.
INFORMS J. Comput., 1999

Sensitivity Analysis for Knapsack Problems: Another Negative Result.
Discret. Appl. Math., 1999

On-Line Scheduling on a Single Machine: Minimizing the Total Completion Time.
Acta Informatica, 1999

A PTAS for Minimizing the Weighted Sum of Job Completion Times on Parallel Machines.
Proceedings of the Thirty-First Annual ACM Symposium on Theory of Computing, 1999

Preemptive Scheduling with Job-Dependent Setup Times.
Proceedings of the Tenth Annual ACM-SIAM Symposium on Discrete Algorithms, 1999

Randomized Online Scheduling on Two Uniform Machines.
Proceedings of the Tenth Annual ACM-SIAM Symposium on Discrete Algorithms, 1999

An FPTAS for Agreeably Weighted Variance on a Single Machine.
Proceedings of the Automata, 1999

1998
Well-Solvable Special Cases of the Traveling Salesman Problem: A Survey.
SIAM Rev., 1998

Sometimes Travelling is Easy: The Master Tour Problem.
SIAM J. Discret. Math., 1998

A comment on a minmax location problem.
Oper. Res. Lett., 1998

One, two, three, many, or: complexity aspects of dynamic network flows with dedicated arcs.
Oper. Res. Lett., 1998

A solvable case of the quadratic assignment problem.
Oper. Res. Lett., 1998

Sequencing jobs that require common resources on a single machine: A solvable case of the TSP.
Math. Program., 1998

Makespan minimization in open shops: A polynomial time approximation scheme.
Math. Program., 1998

The quadratic assignment problem with a monotone anti-Monge and a symmetric Toeplitz matrix: Easy and hard cases.
Math. Program., 1998

The Travelling Salesman and the PQ-Tree.
Math. Oper. Res., 1998

On-Line Scheduling of Two-Machine Open Shops Where Jobs Arrive Over Time.
J. Comb. Optim., 1998

The Travelling Salesman Problem on Permuted Monge Matrices.
J. Comb. Optim., 1998

The Stock Size Problem.
Oper. Res., 1998

The toughness of split graphs.
Discret. Math., 1998

Makespan Minimization in Preemptive Two Machine Job Shops.
Computing, 1998

On-Line and Off-Line Approximation Algorithms for Vector Covering Problems.
Algorithmica, 1998

Minimizing the Number of Tardy Jobs on a Single Machine with Batch Setup Times.
Acta Cybern., 1998

The Maximum Traveling Salesman Problem Under Polyhedral Norms.
Proceedings of the Integer Programming and Combinatorial Optimization, 1998

1997
A polynomial-time approximation scheme for maximizing the minimum machine completion time.
Oper. Res. Lett., 1997

Minimizing the total completion time in a unit-time open shop with release times.
Oper. Res. Lett., 1997

Greedy Algorithms for On-Line Data Compression.
J. Algorithms, 1997

There is no Asymptotic PTAS for Two-Dimensional Vector Packing.
Inf. Process. Lett., 1997

Shelf Algorithms for On-Line Strip Packing.
Inf. Process. Lett., 1997

Hamiltonian cycles in circulant digraphs with two stripes.
Discret. Math., 1997

Simple But Efficient Approaches for the Collapsing Knapsack Problem.
Discret. Appl. Math., 1997

The VC-dimension of Set Systems Defined by Graphs.
Discret. Appl. Math., 1997

Unit-Time Scheduling Problems with Time Dependent Resources.
Computing, 1997

Angle-Restricted Tours in the Plane.
Comput. Geom., 1997

Approximation Schemes for Scheduling.
Proceedings of the Eighth Annual ACM-SIAM Symposium on Discrete Algorithms, 1997

1996
The Convex-Hull-and-k-Line Travelling Salesman Problem.
Inf. Process. Lett., 1996

Three-dimensional Axial Assignment Problems with Decomposable Cost Coefficients.
Discret. Appl. Math., 1996

The Fractional Greedy Algorithm for Data Compression.
Computing, 1996

On the Recognition of Permuted Supnick and Incomplete Monge Matrices.
Acta Informatica, 1996

On-line and Off-line Approximation Algorithms for Vector Covering Problems.
Proceedings of the Algorithms, 1996

Competitive Odds and Ends.
Proceedings of the Online Algorithms, 1996

Competitive Analysis of Algorithms.
Proceedings of the Online Algorithms, 1996

On-line Packing and Covering Problems.
Proceedings of the Online Algorithms, 1996

1995
An optimal algorithm for preemptive on-line scheduling.
Oper. Res. Lett., 1995

On the rate of taxation in a cooperative bin packing game.
Math. Methods Oper. Res., 1995

The cone of Monge matrices: Extremal rays and applications.
Math. Methods Oper. Res., 1995

Minimizing the weighted number of late jobs in UET open shops.
Math. Methods Oper. Res., 1995

On-line bin packing - A restricted survey.
Math. Methods Oper. Res., 1995

On the Complexity of Function Learning.
Mach. Learn., 1995

Scheduling with Time-Dependent Execution Times.
Inf. Process. Lett., 1995

Counting Convex Polygons in Planar Point Sets.
Inf. Process. Lett., 1995

on the Recognition of Permuted Bottleneck Monge Matrices.
Discret. Appl. Math., 1995

Permuting Matrices to Avoid Forbidden Submatrices.
Discret. Appl. Math., 1995

UET-scheduling with chain-type precedence constraints.
Comput. Oper. Res., 1995

Scheduling with safety distances.
Ann. Oper. Res., 1995

VC-Dimensions for Graphs (Extended Abstract).
Proceedings of the Graph-Theoretic Concepts in Computer Science, 1995

A New Efficiently Solvable Special Case of the Three-Dimensional Axial Bottleneck Assignment Problem.
Proceedings of the Combinatorics and Computer Science, 1995

Worst-Case Analysis for On-Line Data Compression.
Proceedings of the Combinatorics and Computer Science, 1995

1994
On-Line Scheduling of Jobs with Fixed Start and End Times.
Theor. Comput. Sci., 1994

Monge matrices make maximization manageable.
Oper. Res. Lett., 1994

New lower and upper bounds for on-line scheduling.
Oper. Res. Lett., 1994

Fast algorithms for the maximum convolution problem.
Oper. Res. Lett., 1994

Some Geometric Clustering Problems.
Nord. J. Comput., 1994

A Lower Bound for Randomized On-Line Scheduling Algorithms.
Inf. Process. Lett., 1994

A general approach to avoiding two by two submatrices.
Computing, 1994

Partitioning Graphs into Two Trees.
Acta Cybern., 1994

Heuristics for Parallel Machine Scheduling with Delivery Times.
Acta Informatica, 1994

1993
Improved Space for Bounded-Space, On-Line Bin-Packing.
SIAM J. Discret. Math., 1993

An On-Line Scheduling Heuristic With Better Worst Case Ratio Than Graham's List Scheduling.
SIAM J. Comput., 1993

Drawing Graphs in the Plane with High Resolution.
SIAM J. Comput., 1993

Reconstructing sets of orthogonal line segments in the plane.
Discret. Math., 1993

A Tight Bound for 3-Partitioning.
Discret. Appl. Math., 1993

On the Euclidean two Paths Problem.
Discret. Appl. Math., 1993

A Greedy-heuristic for 3-partitioning with similar elements.
Computing, 1993

Repacking helps in bounded space on-line bind-packing.
Computing, 1993

A Lower Bound for On-Line Vector-Packing Algorithms.
Acta Cybern., 1993

Computing the optimum stock size.
Proceedings of the 3rd Integer Programming and Combinatorial Optimization Conference, Erice, Italy, April 29, 1993

Maximum Covering with D Cliques.
Proceedings of the Fundamentals of Computation Theory, 9th International Symposium, 1993

1992
The Complexity of Detecting Crossingfree Configurations in the Plane
Universität Trier, Mathematik/Informatik, Forschungsbericht, 1992

The Disjoint Cliques Problem
Universität Trier, Mathematik/Informatik, Forschungsbericht, 1992

Scheduling with Incompatible Jobs
Universität Trier, Mathematik/Informatik, Forschungsbericht, 1992

The exact LPT-bound for maximizing the minimum completion time.
Oper. Res. Lett., 1992

On the Equal-Subset-Sum Problem.
Inf. Process. Lett., 1992

The Complexity of Finding Arborescences in Hypergraphs.
Inf. Process. Lett., 1992

Finding the Closest Extreme Vertex to a Fixed Point.
Inf. Process. Lett., 1992

Counting Convex k-Gons in Planar Point Sets.
Inf. Process. Lett., 1992

Detecting Cycles Through Three Fixed Vertices in a Graph.
Inf. Process. Lett., 1992

Almost Tight Bounds for epsilon-Nets.
Discret. Comput. Geom., 1992

Finding Minimum Area k-gons.
Discret. Comput. Geom., 1992

Polynomial graph-colorings.
Discret. Appl. Math., 1992

UET-scheduling with constrained processor allocations.
Comput. Oper. Res., 1992

A heuristic for preemptive scheduling with set-up times.
Computing, 1992

Minimum-Link Paths Among Obstacles in the Plan.
Algorithmica, 1992

Computing Maximum Valued Regions.
Acta Cybern., 1992

1991
Geometric Clusterings.
J. Algorithms, 1991

On Minimizing the Sum of k Tardinesses.
Inf. Process. Lett., 1991

Counting k-Subsets and Convex k-gons in the Plane.
Inf. Process. Lett., 1991

1990
A Simple Solution to the Two Paths Problem in Planar Graphs.
Inf. Process. Lett., 1990

On the reconstruction of simple polygons.
Bull. EATCS, 1990

Some New Bounds for Epsilon-Nets.
Proceedings of the Sixth Annual Symposium on Computational Geometry, 1990

Minimum-Link Paths Among Obstacles in the Plane.
Proceedings of the Sixth Annual Symposium on Computational Geometry, 1990

1988
Epsilon-Nets for Halfplanes.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 1988


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