Ekkehard Köhler

Affiliations:
  • Brandenburg University of Technology, Cottbus, Germany
  • Technical University of Berlin, Department of Mathematics, Germany


According to our database1, Ekkehard Köhler authored at least 50 papers between 1999 and 2024.

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Bibliography

2024
The Simultaneous Interval Number: A New Width Parameter that Measures the Similarity to Interval Graphs.
Proceedings of the 19th Scandinavian Symposium and Workshops on Algorithm Theory, 2024

Graph Search Trees and the Intermezzo Problem.
Proceedings of the 49th International Symposium on Mathematical Foundations of Computer Science, 2024

2023
Certifying Fully Dynamic Algorithms for Recognition and Hamiltonicity of Threshold and Chain Graphs.
Algorithmica, August, 2023

Optimal Bicycle Routes with Few Signal Stops.
Proceedings of the 23rd Symposium on Algorithmic Approaches for Transportation Modelling, 2023

2021
The Recognition Problem of Graph Search Trees.
SIAM J. Discret. Math., 2021

2020
Edge Elimination and Weighted Graph Classes.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2020

Linear Time LexDFS on Chordal Graphs.
Proceedings of the 28th Annual European Symposium on Algorithms, 2020

2019
Traffic Signal Optimization: Combining Static and Dynamic Models.
Transp. Sci., 2019

Recognizing Graph Search Trees.
Proceedings of the tenth Latin and American Algorithms, Graphs and Optimization Symposium, 2019

On the End-Vertex Problem of Graph Searches.
Discret. Math. Theor. Comput. Sci., 2019

2017
Eccentricity approximating trees.
Discret. Appl. Math., 2017

Line-Distortion, Bandwidth and Path-Length of a Graph.
Algorithmica, 2017

A Graph Theoretic Approach for Shape from Shading.
Proceedings of the Energy Minimization Methods in Computer Vision and Pattern Recognition, 2017

2016
On the Power of Graph Searching for Cocomparability Graphs.
SIAM J. Discret. Math., 2016

A linear time algorithm to compute a maximum weighted independent set on cocomparability graphs.
Inf. Process. Lett., 2016

Eccentricity Approximating Trees - Extended Abstract.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2016

2015
Traffic signal optimization using cyclically expanded networks.
Networks, 2015

Linear Structure of Graphs and the Knotting Graph.
Proceedings of the Gems of Combinatorial Optimization and Graph Algorithms, 2015

2014
An Approximation Algorithm for the Tree t-Spanner Problem on Unweighted Graphs via Generalized Chordal Graphs.
Algorithmica, 2014

Linear Time LexDFS on Cocomparability Graphs.
Proceedings of the Algorithm Theory - SWAT 2014, 2014

2012
Collective additive tree spanners for circle graphs and polygonal graphs.
Discret. Appl. Math., 2012

2010
Length-bounded cuts and flows.
ACM Trans. Algorithms, 2010

On end-vertices of Lexicographic Breadth First Searches.
Discret. Appl. Math., 2010

2009
Lower bounds for strictly fundamental cycle bases in grid graphs.
Networks, 2009

Traffic Networks and Flows over Time.
Proceedings of the Algorithmics of Large and Complex Networks - Design, 2009

2008
Additive Spanners for Circle Graphs and Polygonal Graphs.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2008

The Maximum Energy-Constrained Dynamic Flow Problem.
Proceedings of the Algorithm Theory, 2008

2007
Approximating earliest arrival flows with flow-dependent transit times.
Discret. Appl. Math., 2007

Benchmarks for Strictly Fundamental Cycle Bases.
Proceedings of the Experimental Algorithms, 6th International Workshop, 2007

2006
Higher-Dimensional Packing with Order Constraints.
SIAM J. Discret. Math., 2006

Linear Orderings of Subfamilies of AT-Free Graphs.
SIAM J. Discret. Math., 2006

Length-Bounded Cuts and Flows.
Proceedings of the Automata, Languages and Programming, 33rd International Colloquium, 2006

Fast Point-to-Point Shortest Path Computations with Arc-Flags.
Proceedings of the Shortest Path Problem, 2006

2005
Flows over Time with Load-Dependent Transit Times.
SIAM J. Optim., 2005

The k-Splittable Flow Problem.
Algorithmica, 2005

Collective Tree 1-Spanners for Interval Graphs.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2005

Acceleration of Shortest Path and Constrained Shortest Path Computation.
Proceedings of the Experimental and Efficient Algorithms, 4th InternationalWorkshop, 2005

2004
Recognizing graphs without asteroidal triples.
J. Discrete Algorithms, 2004

Hereditary dominating pair graphs.
Discret. Appl. Math., 2004

Conflict-free Real-time AGV Routing.
Proceedings of the Operations Research, 2004

Minimizing Total Delay in Fixed-Time Controlled Traffic Networks.
Proceedings of the Operations Research, 2004

2003
On the power of BFS to determine a graph's diameter.
Networks, 2003

2002
On the Power of BFS to Determine a Graphs Diameter.
Proceedings of the LATIN 2002: Theoretical Informatics, 2002

Time-Expanded Graphs for Flow-Dependent Transit Times.
Proceedings of the Algorithms, 2002

2001
Extending Partial Suborders.
Electron. Notes Discret. Math., 2001

On Subfamilies of AT-Free Graphs.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2001

Optimal FPGA module placement with temporal precedence constraints.
Proceedings of the Conference on Design, Automation and Test in Europe, 2001

2000
Linear Time Algorithms for Hamiltonian Problems on (Claw, Net)-Free Graphs.
SIAM J. Comput., 2000

Connected Domination and Dominating Clique in Trapezoid Graphs.
Discret. Appl. Math., 2000

1999
Edge-Dominating Trails in AT-free Graphs (Extended Abstract).
Electron. Notes Discret. Math., 1999


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