Klaus Tammer

490 total citations
15 papers, 211 citations indexed

About

Klaus Tammer is a scholar working on Computational Theory and Mathematics, Numerical Analysis and Control and Systems Engineering. According to data from OpenAlex, Klaus Tammer has authored 15 papers receiving a total of 211 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Computational Theory and Mathematics, 8 papers in Numerical Analysis and 4 papers in Control and Systems Engineering. Recurrent topics in Klaus Tammer's work include Optimization and Variational Analysis (9 papers), Advanced Optimization Algorithms Research (7 papers) and Matrix Theory and Algorithms (3 papers). Klaus Tammer is often cited by papers focused on Optimization and Variational Analysis (9 papers), Advanced Optimization Algorithms Research (7 papers) and Matrix Theory and Algorithms (3 papers). Klaus Tammer collaborates with scholars based in Germany and Netherlands. Klaus Tammer's co-authors include Hubertus Th. Jongen, Diethard Klatte, Jan-J. Rückmann, Sabine Pickenhain, J. Guddat, Christiane Tammer and Ralf Schulze and has published in prestigious journals such as Mathematical Programming, Annals of Operations Research and Mathematics of Operations Research.

In The Last Decade

Klaus Tammer

15 papers receiving 179 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Klaus Tammer Germany 7 155 129 46 27 20 15 211
Hannu Väliaho Finland 9 197 1.3× 176 1.4× 26 0.6× 6 0.2× 17 0.8× 21 242
Hezhi Luo China 11 251 1.6× 257 2.0× 36 0.8× 17 0.6× 14 0.7× 36 308
Michael V. Solodov Brazil 5 265 1.7× 205 1.6× 38 0.8× 27 1.0× 22 1.1× 5 364
Roland Durier France 9 122 0.8× 64 0.5× 23 0.5× 11 0.4× 47 2.4× 16 263
Jonathan E. Spingarn United States 11 385 2.5× 309 2.4× 26 0.6× 9 0.3× 63 3.1× 14 479
В. Ф. Демьянов Russia 4 190 1.2× 175 1.4× 50 1.1× 3 0.1× 31 1.6× 6 313
Stefan Schmieta United States 5 313 2.0× 315 2.4× 53 1.2× 10 0.4× 11 0.6× 8 375
Gong Chen United States 3 174 1.1× 153 1.2× 12 0.3× 15 0.6× 43 2.1× 4 278
Stanisław Białas Poland 7 135 0.9× 42 0.3× 201 4.4× 18 0.7× 56 2.8× 22 314
Toshihito Noma Japan 7 542 3.5× 563 4.4× 66 1.4× 8 0.3× 6 0.3× 9 642

Countries citing papers authored by Klaus Tammer

Since Specialization
Citations

This map shows the geographic impact of Klaus Tammer'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 Klaus Tammer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Klaus Tammer more than expected).

Fields of papers citing papers by Klaus Tammer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Klaus Tammer. 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 Klaus Tammer. The network helps show where Klaus Tammer may publish in the future.

Co-authorship network of co-authors of Klaus Tammer

This figure shows the co-authorship network connecting the top 25 collaborators of Klaus Tammer. A scholar is included among the top collaborators of Klaus Tammer 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 Klaus Tammer. Klaus Tammer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

15 of 15 papers shown
1.
Tammer, Klaus, et al.. (2005). Multicriterial Fractional Optimization. edoc Publication server (Humboldt University of Berlin). 6 indexed citations
2.
Tammer, Klaus. (1995). Two-level optimization with approximate solutions in the lower level. Mathematical Methods of Operations Research. 41(2). 231–249. 4 indexed citations
3.
Pickenhain, Sabine & Klaus Tammer. (1991). Sufficient Conditions for Local Optimality in Multidimensional Control Problems with State Restrictions. Zeitschrift für Analysis und ihre Anwendungen. 10(3). 397–405. 13 indexed citations
4.
Tammer, Klaus, et al.. (1991). Generalization and sharpening of some duality relations for a class of vector optimization problems. Mathematical Methods of Operations Research. 35(3). 249–265. 7 indexed citations
5.
Tammer, Klaus, et al.. (1990). System Modelling and Optimization: Proceedings of the 14th Ifip-Conference Leipzig, Gdr, July 3-7, 1989. Medical Entomology and Zoology. 1 indexed citations
6.
Klatte, Diethard & Klaus Tammer. (1990). Strong stability of stationary solutions and Karush-Kuhn-Tucker points in nonlinear optimization. Annals of Operations Research. 27(1). 285–307. 29 indexed citations
7.
Jongen, Hubertus Th., Diethard Klatte, & Klaus Tammer. (1990). Implicit functions and sensitivity of stationary points. Mathematical Programming. 49(1-3). 123–138. 39 indexed citations
8.
Tammer, Klaus, et al.. (1988). THEORETICAL FOUNDATIONS OF TWO-LEVEL METHODS IN NONCONVEX OPTIMIZATION. 45. 180–190. 2 indexed citations
9.
Jongen, Hubertus Th., et al.. (1987). On inertia and schur complement in optimization. Linear Algebra and its Applications. 95. 97–109. 47 indexed citations
10.
Tammer, Klaus. (1987). The application of parametric optimization and imbedding to the foundation and realization of a generalized primal decomposition approach. 35. 376–386. 30 indexed citations
11.
Schulze, Ralf & Klaus Tammer. (1987). Lokale Konvergenzeigenschaften einer Klasse von Iterationsverfahren der nichtlinearen Optimierung. Optimization. 18(5). 677–688. 1 indexed citations
12.
Jongen, Hubertus Th., et al.. (1986). On Iterated Minimization in Nonconvex Optimization. Mathematics of Operations Research. 11(4). 679–691. 23 indexed citations
13.
Tammer, Klaus. (1978). Relations between stochastic and parametric programming for decision problems with a random objective function. Mathematische Operationsforschung und Statistik Series Optimization. 9(4). 523–535. 2 indexed citations
14.
Tammer, Klaus. (1974). Die Abhängigkeit eines quadratischen Optimierungsproblems von einem Parameter in der Zielfunktloin. Mathematische Operationsforschung Statistik. 5(7-8). 573–590. 4 indexed citations
15.
Guddat, J. & Klaus Tammer. (1970). Eine modification der methode von theil und van de panne zur lösung einparametrischer quadratischer optimierungsprobleme. Mathematische Operationsforschung Statistik. 1(3). 199–206. 3 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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