Christoph Helmberg

2.4k total citations
36 papers, 1.5k citations indexed

About

Christoph Helmberg is a scholar working on Computational Theory and Mathematics, Numerical Analysis and Industrial and Manufacturing Engineering. According to data from OpenAlex, Christoph Helmberg has authored 36 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Computational Theory and Mathematics, 14 papers in Numerical Analysis and 11 papers in Industrial and Manufacturing Engineering. Recurrent topics in Christoph Helmberg's work include Advanced Optimization Algorithms Research (14 papers), Advanced Graph Theory Research (8 papers) and Graph theory and applications (8 papers). Christoph Helmberg is often cited by papers focused on Advanced Optimization Algorithms Research (14 papers), Advanced Graph Theory Research (8 papers) and Graph theory and applications (8 papers). Christoph Helmberg collaborates with scholars based in Germany, Austria and Brazil. Christoph Helmberg's co-authors include Franz Rendl, Henry Wolkowicz, Robert J. Vanderbei, Robert Weismantel, Krzysztof C. Kiwiel, Frank Fischer, Vilmar Trevisan, Dieter W. Fellner, Alexander Martín and Michael L. Overton and has published in prestigious journals such as European Journal of Operational Research, ACM Transactions on Graphics and Operations Research.

In The Last Decade

Christoph Helmberg

34 papers receiving 1.3k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Christoph Helmberg Germany 14 734 715 323 261 256 36 1.5k
Kurt M. Anstreicher United States 21 960 1.3× 1.0k 1.4× 276 0.9× 185 0.7× 279 1.1× 64 1.8k
Monique Laurent Netherlands 24 1.5k 2.0× 829 1.2× 214 0.7× 358 1.4× 181 0.7× 125 2.2k
N. Z. Shor Ukraine 16 667 0.9× 641 0.9× 265 0.8× 246 0.9× 160 0.6× 47 1.6k
Etienne de Klerk Netherlands 22 1.4k 1.9× 1.3k 1.8× 381 1.2× 189 0.7× 123 0.5× 89 1.9k
Pravin M. Vaidya United States 20 600 0.8× 275 0.4× 138 0.4× 454 1.7× 147 0.6× 36 1.6k
Komei Fukuda Switzerland 17 743 1.0× 238 0.3× 97 0.3× 168 0.6× 131 0.5× 63 1.7k
Santosh N. Kabadi Canada 10 427 0.6× 296 0.4× 97 0.3× 124 0.5× 125 0.5× 20 851
Krzysztof C. Kiwiel Poland 28 1.6k 2.2× 1.7k 2.4× 1.0k 3.2× 207 0.8× 200 0.8× 76 2.7k
Robert G. Bland United States 10 506 0.7× 254 0.4× 81 0.3× 219 0.8× 119 0.5× 22 1.1k
Elizabeth D. Dolan United States 5 1.7k 2.3× 2.2k 3.0× 889 2.8× 165 0.6× 273 1.1× 7 3.2k

Countries citing papers authored by Christoph Helmberg

Since Specialization
Citations

This map shows the geographic impact of Christoph Helmberg's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Christoph Helmberg with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Christoph Helmberg more than expected).

Fields of papers citing papers by Christoph Helmberg

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Christoph Helmberg. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Christoph Helmberg. The network helps show where Christoph Helmberg may publish in the future.

Co-authorship network of co-authors of Christoph Helmberg

This figure shows the co-authorship network connecting the top 25 collaborators of Christoph Helmberg. A scholar is included among the top collaborators of Christoph Helmberg based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Christoph Helmberg. Christoph Helmberg is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Helmberg, Christoph, et al.. (2025). An Interlacing Property of the Signless Laplacian of Threshold Graphs. The Electronic Journal of Combinatorics. 32(1).
2.
Helmberg, Christoph. (2023). A preconditioned iterative interior point approach to the conic bundle subproblem. Mathematical Programming. 205(1-2). 559–615. 1 indexed citations
3.
Helmberg, Christoph, et al.. (2021). Periodic Event Scheduling for Automated Production Systems. INFORMS journal on computing. 34(2). 1291–1304. 1 indexed citations
4.
Helmberg, Christoph & Vilmar Trevisan. (2016). Spectral threshold dominance, Brouwer's conjecture and maximality of Laplacian energy. Linear Algebra and its Applications. 512. 18–31. 9 indexed citations
5.
Helmberg, Christoph & Vilmar Trevisan. (2015). Threshold graphs of maximal Laplacian energy. Discrete Mathematics. 338(7). 1075–1084. 9 indexed citations
6.
Helmberg, Christoph, et al.. (2013). On Minimizing the Spectral Width of Graph Laplacians and Associated Graph Realizations. SIAM Journal on Optimization. 23(2). 834–856. 1 indexed citations
7.
Fischer, Frank & Christoph Helmberg. (2012). Dynamic graph generation for the shortest path problem in time expanded networks. Mathematical Programming. 143(1-2). 257–297. 28 indexed citations
8.
Lenstra, Jan Karel, Frits Spieksma, Patrice Marcotte, et al.. (2011). Operations Research Letters. 7 indexed citations
9.
Fischer, Frank & Christoph Helmberg. (2010). Dynamic Graph Generation and Dynamic Rolling Horizon Techniques in Large Scale Train Timetabling. DROPS (Schloss Dagstuhl – Leibniz Center for Informatics). 7 indexed citations
10.
Helmberg, Christoph. (2009). Network Models with Convex Cost Structure like Bundle Methods. DROPS (Schloss Dagstuhl – Leibniz Center for Informatics). 0. 1 indexed citations
11.
Fischer, Frank, et al.. (2008). Towards Solving Very Large Scale Train Timetabling Problems by Lagrangian Relaxation. DROPS (Schloss Dagstuhl – Leibniz Center for Informatics). 0. 19 indexed citations
12.
Helmberg, Christoph, et al.. (2007). A Case Study of Joint Online Truck Scheduling and Inventory Management for Multiple Warehouses. Operations Research. 55(4). 733–752. 12 indexed citations
13.
Helmberg, Christoph. (2003). Numerical evaluation of SBmethod. Mathematical Programming. 95(2). 381–406. 15 indexed citations
14.
Helmberg, Christoph & Krzysztof C. Kiwiel. (2002). A spectral bundle method with bounds. Mathematical Programming. 93(2). 173–194. 56 indexed citations
15.
Helmberg, Christoph & Franz Rendl. (2000). A Spectral Bundle Method for Semidefinite Programming. SIAM Journal on Optimization. 10(3). 673–696. 275 indexed citations
16.
Helmberg, Christoph. (2000). Fixing Variables in Semidefinite Relaxations. SIAM Journal on Matrix Analysis and Applications. 21(3). 952–969. 28 indexed citations
17.
Helmberg, Christoph. (2000). Semidefinite Programming for Combinatorial Optimization. 100 indexed citations
18.
Helmberg, Christoph, Franz Rendl, & Robert Weismantel. (1996). Quadratic Knapsack Relaxations Using Cutting Planes. 175–189. 9 indexed citations
19.
Helmberg, Christoph, Franz Rendl, Robert J. Vanderbei, & Henry Wolkowicz. (1996). An Interior-Point Method for Semidefinite Programming. SIAM Journal on Optimization. 6(2). 342–361. 490 indexed citations
20.
Fellner, Dieter W. & Christoph Helmberg. (1993). Robust rendering of general ellipses and elliptical arcs. ACM Transactions on Graphics. 12(3). 251–276. 8 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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