Prof. em. Angelika Steger
ETH Zürich
Prof. em. Dr. Angelika Steger
Institut für Theoretische Informatik
E-Mail: steger@inf.ethz.ch
Retirement
I retired from ETH Zurich in August 2026.
I can therefore no longer accept interns, PhD students or postdoctoral
researchers, or supervise Bachelor’s or Master’s theses. I am also
generally no longer available for reviewing.
If you are a former student of mine:
One of the pleasures of retirement is finally having the time to explore more of Switzerland. If you'd like to introduce me to your hometown or region, I'd be delighted to hear from you.
Research Interests
- Randomized Algorithms, Probabilistic Methods
- Randomness in Neuroscience
Short CV
| 1981-85 | Student of mathematics in Freiburg, Heidelberg and Stony Brook |
| 1985 | Master of Science, SUNY at Stony Brook |
| 1990 | Ph.D, Universität Bonn |
| 1994 | Habilitation, Universität Bonn |
| 1994-95 | Visiting Professor, Universität zu Kiel |
| 1995-96 | Professor for Discrete Mathematics, Universität Duisburg |
| 1996-2003 | Professor for Theoretical Computer Science, TU München |
| 2003- | Professor for Theoretical Computer Science, ETH Zürich |
Awards
| 1981 | Studienstiftung des Deutschen Volkes
|
| 1984-85 | Fulbright Scholarship |
| 1987 | Prize of the Deutsche Gesellschaft für Operations Research (DGOR) for an excellent diploma thesis |
| 1990 | Prize of Fachbereich Mathematik-Informatik, Universität Bonn, for best dissertation of preceding academic year |
| 2007 | Member German Academy of Sciences Leopoldina |
| 2014 | International Congress of Mathematicians ICM'14, invited section talk |
| 2019 | Golden Owl, ETH Zurich, for excellence in teaching |
Selected Professional Activities
Publications
Books
- H.J. Prömel, A. Steger
The Steiner Tree Problem. A Tour Through Graphs, Algorithms and Complexity
Vieweg Verlag, Wiesbaden, February 2002, ISBN 3528067624.
Articles in Journals and Refereed Proceedings
2025
2024
2023
2022
- Random initialisations performing above chance and how to find them
(joint with F. Benzing, S. Schug, R. Meier, J. von Oswald, Y. Akram, N. Zucchet, L. Aitchison)
Annual Workshop on Optimization for Machine Learning (OPT'22), 2022
- Solving static permutation mastermind using O(n log n) queries
(joint with M. Larcher, A. Martinsson)
Electronic Journal of Combinatorics 29, 2022
- Triangle
resilience of the square of a Hamilton cycle in random graphs
(joint with M. Fischer, N. Škorić, M. Trujić)
Journal of Combinatorial Theory, Series B 152, 171-220
2021
2020
- Adaptive tuning curve widths improve sample efficient learning
(joint with F. Meier, R. Dang-Nhu)
Frontiers in Computational Neuroscience, 2020
- A general lower bound for collaborative tree exploration
(joint with Y. Disser, F. Mousset, A. Noever, N. Skoric)
Theoretical Computer Science 811, 2020, 70-78
- An Optimal Decentralized (∆ +1)-Coloring Algorithm
(joint with D. Bertschinger, J. Lengler, A. Martinsson, R. Meier, M. Trujić and E. Welzl)
European Symposium of Algorithms (ESA'20), 2020
2019
- When Does Hillclimbing Fail on Monotone Functions: An entropy compression argument
(joint with J. Lengler, A. Martinsson)
In: Analytic Algorithmics and Combinatorics (ANALCO'19), 2019
- Optimal Kronecker-Sum Approximation of Real Time Recurrent Learning
(joint with F. Benzing, M. Gauy, A. Mujika, A. Martinsson)
In: International Conference on Machine Learning (ICML'19), 2019
- The linear hidden subset problem for the (1+1)EA with scheduled and adaptive mutation rates
(joint with H. Einarsson, M. Gauy, J. Lengler, F. Meier, A. Mujika, F. Weissenberger)
Theoretical Computer Science 785, 2019, 150-170
- Resilience of perfect matchings and Hamiltonicity in random graph processes
(joint with R. Nenadov and M. Trujic)
Random Structures & Algorithms 54, 2019, 797-819
- Mutual inhibition with few inhibitory cells via nonlinear inhibitory synaptic interaction
(joint with F. Weissenberger, M. Gauy, X. Zou)
Neural Computation 31, 2019, 2252-2265
- Bootstrap percolation with inhibition
(joint with H. Einarsson, J. Lengler, F. Mousset, K. Panagiotou)
Random Structures & Algorithms 55, 2019, 881-925
2018
- Voltage dependence of synaptic plasticity is essential for rate based learning with short stimuli
(joint with F. Weissenberger, M. Gauy, J. Lengler, F. Meier)
Scientific Reports 8, Article number 4609.
- Drift analysis and evolutionary algorithms revisited
(joint with J. Lengler)
Combinatorics, Probability, and Computing 27, 2018, 643-666.
- Local resilience of an almost spanning k‐cycle in random graphs
(joint with R. Nenadov and M. Trujic)
Random Structures & Algorithms 53, 2018, 728-751.
-
On the origin of lognormal network synchrony in CA1
(joint with F. Weissenberger, H. Einarsson, M. Gauy, J. Lengler, F. Meier, A. Mujika)
Hippocampus 28, 2018, 824-837.
- Even flying cops should think ahead
(joint with A. Martinsson, F. Meier, P. Schnider)
In: Proceedings of 5th International Symposium on Combinatorial Optimization (ISCO'18), LNCS 10856, 2018, 326-337.
- The linear hidden subset problem for the (1+1) EA with scheduled and adaptive mutation rates
(joint with H. Einarsson, M. Gauy, J. Lengler, F. Meier, A. Mujika, F. Weissenberger)
In: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO'18), ACM, 2018, 1491-1498
- Approximating Real-Time Recurrent Learning with Random Kronecker Factors
(joint with A. Mujika, F. Meier)
In: Proceedings of the 32st Annual Conference on Neural Information Processing Systems (NIPS), 2018
- A hippocampal model for behavioral time acquisition and fast bidirectional replay of spatio-temporal memory sequences
(joint with M. Gauy, J. Lengler, H. Einarsson, F. Meier, F. Weissenberger, M.F. Yanik)
Frontiers in Neuroscience, Systems Biology, 2018.
2017
- A model of fast local homeostatic plasticity
(joint with H. Einarsson, M. Gauy, J. Lengler)
Frontiers in Computational Neuroscience, April 2017.
- Multiassociative Memory: Recurrent Synapses Increase Storage Capacity
(joint with M. Gauy and F. Meier)
Neural Computation 29, 2017, 1375-1405.
- A general lower bound for collaborative tree exploration
(joint with Y. Disser, F. Mousset, A. Noever, N. Skoric)
In: Proceedings of the 24th International Colloquium on Structural Information and Communication Complexity (SIROCCO), 2017
- Note on the coefficient of variations of neuronal spike trains
(joint with J. Lengler)
Biological Cybernetics 111, 2017, 229-235.
- Local resilience for squares of almost spanning cycles in sparse random graphs
(joint with A. Noever)
Electronic Journal of Combinatorics 24, 2017, paper #P4.8
- Unique reconstruction threshold for random jigsaw puzzles
(joint with R. Nenadov and P. Pfister)
Chicago Journal of Theoretical Computer Science, 2017, Article 2, pages 1-16
- Long synfire chains emerge by spike-timing dependent plasticity modulated by population activity
(joint with F. Weissenberger, F. Meier, J. Lengler, H. Einarsson)
International Journal of Neural Systems 27, 2017, 1750044 [20 pages].
- Fast-slow recurrent neural networks
(joint with A. Mujika and F. Meier)
In: Proceedings of the 31st Annual Conference on Neural Information Processing Systems (NIPS), 2017
- Symmetric and asymmetric Ramsey properties in random hypergraphs
(joint with L. Gugelmann, R. Nenadov, Y. Person, N. Skoric, H. Thomas)
Forum of Mathematics, Sigma 5, 2017, e28.
- An algorithmic framework for obtaining lower bounds for random Ramsey problems (full version)
(joint with R. Nenadov, Y. Person, N. Skoric)
Journal of Combinatorial Theory, Series B 124, 2017, 1-38.
2016
- A short proof of the Random Ramsey Theorem
(joint with R. Nenadov)
Combinatorics, Probability, and Computing 25, 2016, 130-144.
- Randomness as a Building Block for Reproducibility in Local Cortical Networks
(joint with J. Lengler)
In: Reproducibility: Principles, Practices, Problems, eds. H. Atmanspacher and S. Maasen, Wiley, New York, 2016.
- A polynomial lower bound for distributed graph coloring in a weak LOCAL model
(joint with D. Hefetz, F. Kuhn, Y. Maus)
In: Proceedings of the 30th International Symposium on Distributed Computing (DISC), 2016, 99-113; best paper award.
- Random directed graphs are robustly Hamiltonian
(joint with D. Hefetz and B. Sudakov)
Random Structures & Algorithms 49, 2016, 345-362.
- On the threshold for the Maker-Breaker H-game
(joint with R. Nenadov and M. Stojakovic)
Random Structures & Algorithms 49, 2016, 558-578.
- Connectivity thresholds for bounded size rules
(joint with H. Einarsson, J. Lengler, F. Mousset, K. Panagiotou)
Annals of Applied Probability 26, 2016, 3206-3250.
2015
- Normalization phenomena in asynchronous networks
(joint with A. Karbasi, J. Lengler)
In: Proceedings of the 42nd International Colloquium on Automata, Languages, and Programming (ICALP '15), 2015, 688-700.
- An algorithmic framework for obtaining lower bounds for random Ramsey problems
(joint with R. Nenadov, N. Skoric)
In: Proceedings of the 26th Annual ACM-SIAM Symposium on Discrete Algorithms (SODA '15), 2015, 1743-1751.
- The Santa Claus problem in a probabilistic setting
(joint with S. Gerke, K. Panagiotou, J. Schwartz)
Transactions on Algorithms 11, 2015, Article No. 17.
- A dynamic architecture of life
(joint with B. Rubin, J. Brockes, B. Galliot, U. Grossniklaus, D. Lobo, M. Mainardi, M. Mirouze, A. Prochiantz)
F1000Research, 2015, 4:1288.
2014
- A high-capacity model for one shot association learning in the brain
(joint with H. Einarsson, J. Lengler)
Frontiers in Computational Neuroscience, 07 November 2014.
- On the number of graphs without large cliques
(joint with F. Mousset and R. Nenadov)
SIAM J Discrete Mathematics 28, 2014, 1980-1986.
- The determinism of randomness and its use in combinatorics
Proceedings ICM 2014, Vol IV, 2014, 475-488.
- The game chromatic number of dense random graphs
(joint with R. Keusch)
Electronic Journal of Combinatorics 21, 2014, paper #P4.47.
- The maximum degree of random planar graphs
(joint with M. Drmota, O. Giménez, M. Noy, K. Panagiotou)
Proceedings London Mathematical Society 109, 2014, 892-920.
2013
- Explosive percolation in Erdös-Renyi-like random graph processes
(joint with K. Panagiotou, R. Spöhel, H. Thomas)
Combinatorics, Probability, and Computing 22, 2013, 133-145.
- General deletion lemmas via the Harris inequality
(joint with R. Spöhel and L. Warnke)
Journal of Combinatorics 4, 2013, 251-271.
- On the insertion time of cuckoo hashing
(joint with N. Fountoulakis and K. Panagiotou)
SIAM J Computing 42, 2013, 2156-2181.
- Reliable neuronal systems: the importance of heterogeneity
(joint with J. Lengler and F. Jug)
PLOS ONE, December 2013.
2012
- The maximum degree of random planar graphs
(joint with M. Drmota, O. Gimenez, M. Noy, and K. Panagiotou)
In: Proceedings of the 23rd Annual ACM-SIAM Symposium on Discrete Algorithms (SODA '12), 2012, 281-287.
- Recurrent competitive networks can learn locally excitatory topologies
(joint with F. Jug, M. Cook)
In: Proceedings of the International Joint Conference on Neural Networks (IJCNN '12), 2012, 1-8.
- Extremal subgraphs of random graphs
(joint with G. Brightwell and K. Panagiotou)
Random Structures & Algorithms 41, 2012, 147-178.
- A randomized version of Ramsey's theorem
(joint with L. Gugelmann, Y. Person, H. Thomas)
Random Structures & Algorithms 41, 2012, 488-505.
2011
- On the degree distribution of random planar graphs
(joint with K. Panagiotou)
In: Proceedings of the 22nd Annual ACM-SIAM Symposium on Discrete Algorithms (SODA '11), 2011, 1198-1210.
- Pegging graphs yields a small diameter
(joint with S. Gerke and N. Wormald)
Combinatorics, Probability, and Computing 20, 2011, 239-248.
- Explosive percolation in Erdös-Renyi-like random graph processes (extended abstract)
(joint with K. Panagiotou, R. Spöhel, H. Thomas)
In: European Conference on Combinatorics, Graph Theory and Applications (EuroComb '11), Electronic Notes in Discrete Mathematics 38, 2011, 699-704.
- A randomized version of Ramsey's theorem (extended abstract)
(joint with L. Gugelmann, Y. Person, H. Thomas)
In: European Conference on Combinatorics, Graph Theory and Applications (EuroComb '11), Electronic Notes in Discrete Mathematics 38, 2011, 431-436.
- Interacting maps for fast visual interpretation
(joint with M. Cook, L. Gugelmann, F. Jug, C. Krautz)
In:International Joint Conference on Neural Networks (IJCNN'11), 2011, 770-776.
2010
- Synchrony and asynchrony in neural networks
(joint with F. Kuhn, K. Panagiotou, J. Spencer)
In: Proceedings of the 21th Annual ACM-SIAM Symposium on Discrete Algorithms (SODA '10), 2010, 949-964.
- Offline thresholds for Ramsey-type games on random graphs
(joint with M. Krivelevich and R. Spöhel)
Random Structures & Algorithms 36, 2010, 57-79.
- Maximal biconnected subgraphs of random planar graphs
(joint with K. Panagiotou)
ACM Transaction of Algorithms 6, 2010, article no. 31; special issue devoted to SODA '09 best papers.
- Coloring the edges of a random graph without a monochromatic giant component
(joint with R. Spöhel and H. Thomas)
Electronic Journal of Combinatorics, 2010, #R133.
- A model of functional recovery after significant loss of neural tissue: biofeedback based healing of vestibular dysfunction
(joint with F. Jug and C. Krautz)
BMC Neuroscience 11, 2010, P111.
- Unsupervised learning of relations
(joint with M. Cook, F. Jug, and C. Krautz)
In: Proceedings of the 20th International Conference on Artificial Neural Networks (ICANN'10), LNCS 6352, Springer-Verlag, 2010, 164-173.
- On properties of random dissections and triangulations
(joint with N. Bernasconi and K. Panagiotou)
Combinatorica 30, 2010, 627-654.
2009
- Maximal biconnected subgraphs of random planar graphs
(joint with K. Panagiotou)
In: Proceedings of the 20th Annual ACM-SIAM Symposium on Discrete Algorithms (SODA '09), 432-440; full version appeared in ACM Transactions of Algorithms 6, 2010 (invited paper).
- A tight bound on the collection of edges in MSTs of induced subgraphs
(joint with G. Sorkin and R. Zenklusen)
Journal of Combinatorial Theory, Series B 99, 2009, 428-435.
- A quasi-polynomial time approximation scheme for minimum weight triangulation
(joint with J. Remy)
Journal of the ACM 56, 2009, article no. 15; extended abstract appeared in STOC'06.
- Upper bounds for online Ramsey games in random graphs
(joint with Reto Spöhel and M. Marciniszyn)
Combinatorics, Probability, and Computing 18, 2009, 259-270.
- Online Ramsey games in random graphs
(joint with Reto Spöhel and M. Marciniszyn)
Combinatorics, Probability, and Computing 18, 2009, 271-300.
- A note on the chromatic number of a dense random graph
(joint with K. Panagiotou)
Discrete Mathematics 309, 2009, 3420-3423.
- Approximation schemes for node-weighted geometric Steiner tree problems
(joint with J. Remy)
Algorithmica 55, 2009, 240-267; invited for publication in this special issue of APPROX/RANDOM 2005.
- Optimal algorithms for k-search with application in option pricing
(joint with J. Lorenz and K. Panagiotou)
Algorithmica 55, 2009, 311-328; invited for publication in this special issue of ESA 2007.
- Coloring the edges of a random graph without a monochromatic giant component
(joint with Reto Spöhel and Henning Thomas)
Proceedings of the European Conference on Combinatorics, Graph Theory and Applications (EuroComb'09),
Electronic Notes in Discrete Mathematics 34, 2009, 615-619.
- Asymmetric Ramsey properties of random graphs involving cliques
(joint with M. Marciniszyn, J. Skokan and R. Spöhel)
Random Structures & Algorithms 34, 2009, 419 - 453; extended abstract appeared in RANDOM'06.
- The degree sequence of random graphs from subcritical classes
(joint with N. Bernasconi and K. Panagiotou)
Combinatorics, Probability, and Computing 18, 2009, 647-681; extended abstract appeared in RANDOM'08.
2008
- On properties of random dissections and triangulations
(joint with N. Bernasconi and K. Panagiotou)
In: Proceedings of the 19th Annual ACM-SIAM Symposium on Discrete Algorithms (SODA '08), 132-141. [full version] appeared in Combinatorica 30, 2010.
- On the degree sequences of random outerplanar and series-parallel graphs
(joint with N. Bernasconi and K. Panagiotou)
In: Proceedings of the 12th International Workshop on Randomized Techniques in Computation (RANDOM'08), LNCS 5171, Springer-Verlag, 2008, 303-316; full version appeared in Combinatorics, Probability, and Computing 18, 2009.
- On the resilience of long cycles in random graphs
(joint with D. Dellamonica Jr., Y. Kohayakawa and M. Marciniszyn)
The Electronic Journal of Combinatorics 15, 2008, R32.
- The random planar graph process
(joint with S. Gerke, D. Schlatter and A. Taraz)
Random Structures and Algorithms 32, 2008, 236-261.
- On the chromatic number of random graphs
(joint with A. Coja-Oghlan and K. Panagiotou)
Journal of Combinatorial Theory, Series B 98, 2008, 980-993; extended abstract appeared in ICALP'07.
2007
- Small subsets inherit sparse ε-regularity
(joint with S. Gerke, Y. Kohayakawa and V. Rödl)
Journal of Combinatorial Theory, Series B 97, 2007, 34-56. [preprint]
- A characterisation for sparse ε-regular pairs
(joint with S. Gerke)
The Electronic Journal of Combinatorics 14, 2007, R4.
- On an online spanning tree problem in randomly weighted graphs
(joint with J. Remy and A. Souza-Offtermatt)
Combinatorics, Probability, and Computing 16, 2007, 127-144.
- K4-free subgraphs of random graphs revisited
(joint with S. Gerke, T. Schickinger, H.J. Prömel and A. Taraz)
Combinatorica 27, 2007, 329-365.
- A probabilistic counting lemma for complete graphs
(joint with S. Gerke and M. Marciniszyn)
Random Structures and Algorithms 31, 2007, 517-534.
- On extremal subgraphs of random graphs
(joint with G. Brightwell and K. Panagiotou)
In: Proceedings of the 18th ACM-SIAM Symposium on Discrete Algorithms (SODA'07), 477-485; full version appeared in Random Structures and Algorithms 55, 2009.
- Observational learning in random networks
(joint with J. Lorenz and M. Marciniszyn)
In: Proceedings of the 20th Annual Conference on Learning Theory (COLT '07), 574-588. [preprint full version]
- On the chromatic number of random graphs
(joint with A. Coja-Oghlan and K. Panagiotou)
In: Proceedings of the 34th International Colloquium on Automata, Languages and Programming (ICALP '07), 777-788; full version appeared in Journal of Combinatorial Theory, Series B 98, 2008.
- Optimal algorithms for k-search with application in option pricing
(joint with J. Lorenz and K. Panagiotou)
In: Proceedings of the 15th Annual European Symposium on Algorithms (ESA '07), 275-286; full version appeared in Algorithmica 55, 2009 (invited paper).
- Random planar graphs with given average degree
(joint with S. Gerke, C. McDiarmid, and A. Weißl)
In: Combinatorics, Complexity and Chance: A Tribute to Dominic Welsh (G.Grimmett, C.McDiarmid, eds.), Oxford University Press, New York, 2007, 83-102. [preprint]
2006
- A new average case analysis for completion time scheduling
(joint with M. Scharbrodt and T. Schickinger)
Journal of the ACM 53, 2006, 121-146.
- Balanced allocation: the heavily loaded case
(joint with P. Berenbrink, A. Czumaj and B. Vöcking)
SIAM Journal on Computing 35, 2006, 1350-1385.
- The expected competitive ratio for weighted completion time scheduling
(joint with A. Souza-Offtermatt)
Theory of Computing Systems 39, 2006, 121-136.
- A quasi-polynomial time approximation scheme for minimum weight triangulation
(joint with J. Remy)
In: Proceedings of the 38th ACM Symposium on Theory of Computing (STOC'06), 316-325; full version appeared an Journal of the ACM 56, 2009.
- Random graphs from planar and other addable classes
(joint with C. McDiarmid and D.J.A. Welsh)
In: Topics in Discrete Mathematics, Dedicated to Jarik Nesetril on the occasion of his 60th birthday, Springer-Verlag, 2006, 231-246.
- Threshold functions for asymmetric Ramsey properties involving cliques
(joint with M. Marciniszyn, J. Skokan, R. Spöhel)
In: Proceedings of the 10th International Workshop on Randomized Techniques in Computation (RANDOM'06), LNCS 4110, 2006, 462-474; full version appeared in Random Structures & Algorithms.
2005
- On the evolution of triangle-free graphs
Combinatorics, Probability, and Computing 14, 2005, 211-224.
- Random planar graphs
(joint with C. McDiarmid and D.J.A. Welsh)
Journal of Combinatorial Theory, Series B 93, 2005, 187-205.
- The sparse regularity lemma and its applications
(joint with S. Gerke)
In: Surveys in Combinatorics, 2005, B. Webb, ed., Cambridge University Press, 2005, 227-258.
- Random planar graphs with n nodes and a fixed number of edges
(joint with S. Gerke, C. McDiarmid, and A. Weißl)
In: Proceedings of the 16th ACM-SIAM Symposium on Discrete Algorithms (SODA'05), 2005, 999-1007.
- Fast algorithms for weighted bipartite matching
(joint with J. Schwartz and A. Weißl)
In: 4th International Workshop on Efficient and Experimental Algorithms (WEA 05), 2005, 476-487.
- The online clique avoidance game on random graphs
(joint with M. Marciniszyn and R. Spöhel)
In: Proceedings of the 9th International Workshop on Randomized Techniques in Computation (RANDOM'05), LNCS 3624, 2005, 390-401.
- Approximation schemes for node-weighted geometric Steiner tree problems
(joint with J. Remy)
In: Proceedings of the 8th Workshop on Approximation Algorithms for Combinatorial Optimization Problems (APPROX'05), LNCS 3624, 2005, 221-232; full version appeared in Algorithmica 55, 2009 (invited paper).
- A probabilistic counting lemma for complete graphs
(joint with S. Gerke and M. Marciniszyn)
In: Proceedings of the 3rd European Conference on Combinatorics, Graph Theory and Applications (EuroComb'05), DMTCS Proceedings Volume AE, 2005, 309-316; full version appeared in Random Structures & Algorithms 31, 2007.
2004
2003
2002
2001
- Asymptotic enumeration, global structure and constrained evolution
(joint with H.J. Prömel and A. Taraz)
Discrete Mathematics 229, 2001, 213-233.
- Counting partial orders with a fixed number of comparable pairs
(joint with H.J. Prömel and A. Taraz)
Combinatorics, Probability and Computing 10, 2001, 159-177.
- Phase transitions in the evolution of partial orders
(joint with H.J. Prömel and A. Taraz)
Journal of Combinatorial Theory, Series A 94, 2001, 230-275.
- Learning one-variable pattern languages very efficiently on average, in parallel, and by asking queries
(joint with T. Erlebach, P. Rossmanith, H. Stadtherr, and T. Zeugmann)
Theoretical Computer Science 261, 2001, 119-156.
- On the structure of clique-free graphs
(joint with H.J. Prömel and T. Schickinger)
Random Structures and Algorithms 19, 2001, 37-53.
2000
1999
- Approximability of scheduling with fixed jobs (Extended Abstract)
(joint with M. Scharbrodt, H. Weisser)
In: Proceedings of the Tenth ACM-SIAM Symposium on Discrete Algorithms (SODA'99), 1999, 961-962.
Journal version:
- Approximability of scheduling with fixed jobs
(joint with M. Scharbrodt, H. Weisser)
Journal of Scheduling 2, 1999, 267-284.
- Randomized and adversarial load balancing
(joint with P. Berenbrink and T. Friedetzky)
In: Proceedings of the Eleventh Annual ACM Symposium on Parallel Algorithms and Architectures (SPAA'99), Springer-Verlag, 1999, pp. 175-184.
- Generating random regular graphs quickly
(joint with N. Wormald)
Combinatorics, Probability and Computing 8, 1999, 377-396.
- Load balancing using bisectors - a tight average-case analysis
(joint with S. Bischof and Th. Schickinger)
In: Proceedings of the Seventh Annual European Symposium on Algorithms (ESA'99), Springer-Verlag, 1999, pp. 172-183.
1998
1997
- RNC-Approximation algorithm for the Steiner Problem
(joint with H.J. Prömel)
In: STACS'97, LNCS 1200, Springer Verlag, 1997, 559-570.©
- Learning one-variable pattern languages very efficiently on average, in parallel, and by asking queries
(joint with T. Erlebach, P. Rossmanith, H. Stadtherr, and T. Zeugmann)
In: ALT'97, LNCS 1316, Springer Verlag, 1997, 260-276; ©
Journal version was invited for publication in Theoretical Computer Science.
1996
- Counting H-free graphs
(joint with H.J. Prömel)
Discrete Mathematics 154, 1996, 311-315.
- The average number of linear extensions of a partial order
(joint with G. Brightwell and H.J. Prömel)
Journal of Combinatorial Theory, Series A 73, 1996, 193-206.
- On the asymptotic structure of sparse triangle-free graphs
(joint with H.J. Prömel)
Journal of Graph Theory 21, 1996, 137-151.
- Tidier examples for lower bounds on diagonal Ramsey numbers
(joint with C. McDiarmid)
Journal of Combinatorial Theory, Series A 74, 1996, 147-152.
- Wie man Beweise verifizieren kann, ohne sie zu lesen
(joint with H.J. Prömel)
In: Highlights der Informatik (I. Wegener, ed.), Springer Verlag, 1996.©
1995
1994
- Probabilistically checkable proofs and their consequences for approximation algorithms
(joint with S. Hougardy and H.J. Prömel)
Discrete Mathematics 136, 1994, 175-223;
Reprinted in: Trends in Discrete Mathematics (W. Deuber, H.J. Prömel, B. Voigt, eds.), North Holland, 1995.
- Testing hereditary properties efficiently on average
(joint with J. Gustedt)
In: Orders, Algorithms and Applications (V. Bouchitté, M. Morvan, eds.), Proceedings of the International Workshop ORDAL'94, Lyon, LNCS 831, Springer-Verlag, 1994, 100-116.
1993
- Excluding induced subgraphs II: extremal graphs
(joint with H.J. Prömel)
Discrete Applied Mathematics 44, 1993, 283-294.
- A note on induced matchings
(joint with M. Yu)
Discrete Mathematics 120, 1993, 291-295.
- Asymptotic structure of H-free graphs
(joint with H.J. Prömel)
Proceedings of the AMS-IMS-SIAM Joint Summer Research Conference (N. Robertson, P. Seymour, Hrsg.), Contemporary Mathematics 147, American Mathematical Society, 1993, 167-178.
- Extremal graph problems for graphs with a color-critical vertex
(joint with C. Hundack and H.J. Prömel)
Combinatorics, Probability, and Computing 2, 1993, 465-477.
1992
1991
1990
- Globale und lokale Verdrahtungsalgorithmen für Sea-of-Cells Design
(joint with A. Hetzel, B. Korte, R. Krieger, H.J. Prömel and U.D. Radicke)
Informatik - Forschung und Entwicklung 5 (1990), 2-19.
- VLSI-placement based on routing and timing information
(joint with J. Garbers, B. Korte, H.J. Prömel and E. Schwietzke)
Proceedings European Design Automation Conference, 1990, 317-321.
- A design-system for ASIC's with macrocells
(joint with B. Korte and H.J. Prömel)
Proceedings EURO ASIC '90 Conference 1990, 220-224.
- Finding clusters in VLSI circuits
(joint with J. Garbers and H.J. Prömel)
Proceedings International Conference on Computer-Aided-Design, 1990, 520-523.
- Steiner trees in VLSI-layout
(joint with B. Korte and H.J. Prömel)
In: Paths, Flows and VLSI-Layout (B. Korte, L. Lov√°sz, H.J. Prömel, A. Schrijver, eds.), Algorithms and Combinatorics, Vol. 7, Springer Verlag 1990, 185-214.
1989
- Combining partitioning and global routing in sea-of-cells design
(joint with B. Korte and H.J. Prömel)
Proceedings International Conference on Computer-Aided-Design, 1989, 98-101.
1988
- An extension of Karmarkar's algorithm to bounded linear programming problems
Operations Research Proceedings 1987, Springer Verlag 1988, 88-95.
Theses
Master of Science:
An Extension of Karmarkar's Algorithm to Bounded Linear Programming Problems
State University of New York at Stony Brook, August 1985.
Dissertation:
Die Kleitman-Rothschild Methode
Universität Bonn, März 1990.
Habilitationsschrift:
Asymptotic Properties of H-free Graphs
Universität Bonn, November 1993.