Elmar Langetepe

Elmar Langetepe: Optimizing two-sequence functionals in competitive analysis. Computer Science - R&D 27(3): 207-216 (2012)

Christian Wulff-Nilsen, Ansgar Grüne, Rolf Klein, Elmar Langetepe, D. T. Lee, Tien-Ching Lin, Sheung-Hung Poon, Teng-Kai Yu: Computing the Stretch factor and Maximum Detour of Paths, Trees, and cycles in the normed Space. Int. J. Comput. Geometry Appl. 22(1): 45-60 (2012)

Elmar Langetepe: Searching for an axis-parallel shoreline. Theor. Comput. Sci. 447: 85-99 (2012)

Bernd Brüggemann, Elmar Langetepe, Andreas Lenerz, Dirk Schulz: From a Multi-robot Global Plan to Single-robot Actions. ICINCO (2) 2012: 419-422

Thilo Beckmann, Rolf Klein, David Kriesel, Elmar Langetepe: Ant-sweep: a decentral strategy for cooperative cleaning in expanding domains. Symposium on Computational Geometry 2011: 287-288

Tom Kamphans, Elmar Langetepe: Leaving an Unknown Maze Using an Error-Prone Compass. Int. J. Comput. Geometry Appl. 20(3): 307-325 (2010)

Rudolf Fleischer, Tom Kamphans, Rolf Klein, Elmar Langetepe, Gerhard Trippen: The Tourist in the Shopping Arcade. J. UCS 16(5): 676-685 (2010)

Elmar Langetepe: Searching for an Axis-Parallel Shoreline. COCOA (1) 2010: 369-384

Ansgar Grüne, Tien-Ching Lin, Teng-Kai Yu, Rolf Klein, Elmar Langetepe, D. T. Lee, Sheung-Hung Poon: Spanning Ratio and Maximum Detour of Rectilinear Paths in the L₁ Plane. ISAAC (2) 2010: 121-131

Elmar Langetepe: On the Optimality of Spiral Search. SODA 2010: 1-12

Christian Icking, Tom Kamphans, Rolf Klein, Elmar Langetepe: Exploring Grid Polygons Online. CoRR abs/1012.5240 (2010)

Daniel Herrmann, Tom Kamphans, Elmar Langetepe: Exploring Simple Triangular and Hexagonal Grid Polygons Online. CoRR abs/1012.5253 (2010)

Tom Kamphans, Elmar Langetepe: Optimal competitive online ray search with an error-prone robot. CoRR abs/1012.5259 (2010)

Rolf Klein, Elmar Langetepe, Zahra Nilforoushan: Abstract Voronoi diagrams revisited. Comput. Geom. 42(9): 885-902 (2009)

Tom Kamphans, Elmar Langetepe: Inspecting a Set of Strips Optimally. WADS 2009: 423-434

Rudolf Fleischer, Thomas Kamphans, Rolf Klein, Elmar Langetepe, Gerhard Trippen: Competitive Online Approximation of the Optimal Search Ratio. SIAM J. Comput. 38(3): 881-898 (2008)

Bernd Brüggemann, Tom Kamphans, Elmar Langetepe: Escaping from a Labyrinth with One-way Roads for Limited Robots. EMCR 2007

Elmar Langetepe, Gabriel Zachmann: Geometric data structures for computer graphics. A K Peters 2006, isbn 978-1-56881-235-9, pp. I-XIII, 1-339

Andrea Eubeler, Rudolf Fleischer, Thomas Kamphans, Rolf Klein, Elmar Langetepe, Gerhard Trippen: Competitive Online Searching for a Ray in the Plane. Robot Navigation 2006

Christian Icking, Thomas Kamphans, Rolf Klein, Elmar Langetepe: Exploring Simple Grid Polygons. COCOON 2005: 524-533

Thomas Kamphans, Elmar Langetepe: Optimal Competitive Online Ray Search with an Error-Prone Robot. WEA 2005: 593-596

Andrea Eubeler, Rudolf Fleischer, Tom Kamphans, Rolf Klein, Elmar Langetepe, Gerhard Trippen: Competitive online searching for a ray in the plane. EuroCG 2005: 107-110

Tom Kamphans, Elmar Langetepe: On optimizing multi-sequence functionals for competitive analysis. EuroCG 2005: 111-114

Ferran Hurtado, Rolf Klein, Elmar Langetepe, Vera Sacristan: The weighted farthest color Voronoi diagram on trees and graphs. Comput. Geom. 27(1): 13-26 (2004)

Annette Ebbers-Baumann, Rolf Klein, Elmar Langetepe, Andrzej Lingas: A fast algorithm for approximating the detour of a polygonal chain. Comput. Geom. 27(2): 123-134 (2004)

Christian Icking, Rolf Klein, Elmar Langetepe, Sven Schuierer, Ines Semrau: An Optimal Competitive Strategy for Walking in Streets. SIAM J. Comput. 33(2): 462-486 (2004)

Rudolf Fleischer, Thomas Kamphans, Rolf Klein, Elmar Langetepe, Gerhard Trippen: Competitive Online Approximation of the Optimal Search Ratio. ESA 2004: 335-346

Manuel Abellanas, Ferran Hurtado, Vera Sacristan, Christian Icking, Lihong Ma, Rolf Klein, Elmar Langetepe, Belén Palop: Voronoi Diagram for services neighboring a highway. Inf. Process. Lett. 86(5): 283-288 (2003)

Thomas Kamphans, Elmar Langetepe: The Pledge Algorithm Reconsidered under Errors in Sensors and Motion. WAOA 2003: 165-178

Oswin Aichholzer, Franz Aurenhammer, Christian Icking, Rolf Klein, Elmar Langetepe, Günter Rote: Generalized self-approaching curves. Discrete Applied Mathematics 109(1-2): 3-24 (2001)

Manuel Abellanas, Ferran Hurtado, Christian Icking, Rolf Klein, Elmar Langetepe, Lihong Ma, Belén Palop, Vera Sacristan: Smallest Color-Spanning Objects. ESA 2001: 278-289

Annette Ebbers-Baumann, Rolf Klein, Elmar Langetepe, Andrzej Lingas: A Fast Algorithm for Approximating the Detour of a Polygonal Chain. ESA 2001: 321-332

Christian Icking, Thomas Kamphans, Rolf Klein, Elmar Langetepe: On the Competitive Complexity of Navigation Tasks. Sensor Based Intelligent Robots 2000: 245-258

Christian Icking, Thomas Kamphans, Rolf Klein, Elmar Langetepe: Exploring an Unknown Cellular Environment. EuroCG 2000: 140-143

Christoph A. Hipke, Christian Icking, Rolf Klein, Elmar Langetepe: How to Find a Point on a Line Within a Fixed Distance. Discrete Applied Mathematics 93(1): 67-73 (1999)

Christian Icking, Rolf Klein, Elmar Langetepe: An Optimal Competitive Strategy for Walking in Streets. STACS 1999: 110-120

Oswin Aichholzer, Franz Aurenhammer, Christian Icking, Rolf Klein, Elmar Langetepe, Günter Rote: Generalized Self-Approaching Curves. ISAAC 1998: 317-326

Grigoris Antoniou, Elmar Langetepe: A Correct Logic Programming Computation of Default Logic Extensions. J. Autom. Reasoning 18(1): 25-46 (1997)

Grigoris Antoniou, Elmar Langetepe, Volker Sperschneider: New Proofs in Default Logic Theory. Ann. Math. Artif. Intell. 12(3-4): 215-229 (1994)

Grigoris Antoniou, Elmar Langetepe: Applying SLD-resolution to a class of non-Horn logic programs. Bulletin of the IGPL 2(2): 229-241 (1994)

Grigoris Antoniou, Elmar Langetepe: Soundness and Completeness of a Logic Programming Approach to Default Logic. AAAI 1994: 934-939

Grigoris Antoniou, Elmar Langetepe: A Process Model for Default Logic and Its Realization in Logic Programming. EPIA 1993: 213-225

Grigoris Antoniou, Elmar Langetepe, Volker Sperschneider: Computing Extensions of Default Logic - Preliminary Report. LPAR 1993: 19-27