Kai Köhler

464 total citations
29 papers, 295 citations indexed

About

Kai Köhler is a scholar working on Clinical Psychology, Mathematical Physics and General Health Professions. According to data from OpenAlex, Kai Köhler has authored 29 papers receiving a total of 295 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Clinical Psychology, 8 papers in Mathematical Physics and 6 papers in General Health Professions. Recurrent topics in Kai Köhler's work include Posttraumatic Stress Disorder Research (13 papers), Migration, Health and Trauma (6 papers) and Advanced Algebra and Geometry (5 papers). Kai Köhler is often cited by papers focused on Posttraumatic Stress Disorder Research (13 papers), Migration, Health and Trauma (6 papers) and Advanced Algebra and Geometry (5 papers). Kai Köhler collaborates with scholars based in Germany, United Kingdom and Switzerland. Kai Köhler's co-authors include W. H. M. Duynisveld, Jürgen Böttcher, H. J. Berthold, Heinrich Rau, Antje Krüger-Gottschalk, Andreas Seubert, Thomas Ehring, Ingo Schäfer, Christine Knaevelsrud and Julia Schellong and has published in prestigious journals such as BMJ Open, Inventiones mathematicae and BMC Psychiatry.

In The Last Decade

Kai Köhler

26 papers receiving 265 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kai Köhler Germany 11 83 55 49 34 31 29 295
Tej Bahadur Singh India 8 121 1.5× 27 0.5× 33 0.7× 5 0.1× 30 307
Se‐jin Oh South Korea 11 256 4.7× 70 1.4× 11 0.3× 13 0.4× 51 423
Zixi Zhu China 8 28 0.3× 21 0.4× 7 0.2× 7 0.2× 13 643
Moumita Mandal India 8 15 0.2× 1 0.0× 21 0.4× 5 0.1× 35 252
María J. Martín Spain 14 56 0.7× 148 4.4× 6 0.2× 79 617
J. Horn United States 10 35 0.4× 7 0.1× 42 1.2× 8 0.3× 22 421
W. S. Cheng China 15 5 0.1× 36 1.1× 18 0.6× 77 631
Julia Robinson United States 8 45 0.5× 12 0.2× 4 0.1× 15 174
Νίκος Ψαρρός Germany 10 44 0.8× 1 0.0× 27 0.8× 14 0.5× 32 348

Countries citing papers authored by Kai Köhler

Since Specialization
Citations

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

Fields of papers citing papers by Kai Köhler

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kai Köhler

This figure shows the co-authorship network connecting the top 25 collaborators of Kai Köhler. A scholar is included among the top collaborators of Kai Köhler 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 Kai Köhler. Kai Köhler 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
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Bachem, Rahel, And re as Maercker, Yafit Levin, et al.. (2024). Assessing complex PTSD and PTSD: validation of the German version of the International Trauma Interview (ITI). European journal of psychotraumatology. 15(1). 2344364–2344364. 7 indexed citations
3.
Köhler, Kai. (2024). Differential Geometry and Homogeneous Spaces. Universitext.
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6.
Wesemann, Ulrich, Ali Sahebi, Julia Vogel, et al.. (2023). Post-traumatic stress disorder among COVID-19-affected high-risk cardiac patients. International Health. 16(1). 120–122. 1 indexed citations
7.
Köhler, Kai, Ben K. D. Pearce, Thomas Henning, et al.. (2022). Possible Ribose Synthesis in Carbonaceous Planetesimals. Life. 12(3). 404–404. 11 indexed citations
8.
Willmund, Gerd, et al.. (2021). Equine‐assisted psychotherapy with traumatized couples—Improvement of relationship quality and psychological symptoms. Journal of Marital and Family Therapy. 47(4). 925–944. 4 indexed citations
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Cwik, Jan Christopher, Christine Knaevelsrud, Sarah Schumacher, et al.. (2020). Associations Between Difficulties in Emotion Regulation and Post-Traumatic Stress Disorder in Deployed Service Members of the German Armed Forces. Frontiers in Psychiatry. 11. 576553–576553. 10 indexed citations
11.
Köhler, Kai, et al.. (2008). A fixed point formula of Lefschetz type in Arakelov geometry II: a residue formula / Une formule du point fixe de type Lefschetz en geometrie d'Arakelov II: une formule des residus. arXiv (Cornell University). 1 indexed citations
12.
Köhler, Kai, W. H. M. Duynisveld, & Jürgen Böttcher. (2006). Nitrogen fertilization and nitrate leaching into groundwater on arable sandy soils. Journal of Plant Nutrition and Soil Science. 169(2). 185–195. 69 indexed citations
13.
Köhler, Kai, et al.. (2003). Quaternionic analytic torsion. Advances in Mathematics. 178(2). 375–395. 1 indexed citations
14.
Köhler, Kai, et al.. (2003). A fixed point formula of Lefschetz type in Arakelov geometry IV: the modular height of C.M. abelian varieties. Journal für die reine und angewandte Mathematik (Crelles Journal). 2003(556). 5 indexed citations
15.
Köhler, Kai, et al.. (2002). A fixed point formula of Lefschetz type in Arakelov geometry II: A residue formula. Annales de l’institut Fourier. 52(1). 81–103. 12 indexed citations
16.
Klotz, Johannes, et al.. (1999). Geistige Brandstiftung? : die Walser-Bubis Debatte. Medical Entomology and Zoology. 2 indexed citations
17.
Köhler, Kai, et al.. (1998). Un théorème du point fixe de Lefschetz en géométrie d'Arakelov. Comptes Rendus de l Académie des Sciences - Series I - Mathematics. 326(6). 719–722. 3 indexed citations
18.
Köhler, Kai. (1997). Equivariant Reidemeister torsion on symmetric spaces. Mathematische Annalen. 307(1). 57–69. 6 indexed citations
19.
Berthold, H. J., Kai Köhler, & R. Wartchow. (1983). Kristallstrukturverfeinerung des Zinkaluminiumsulfids ZnAl2S4 (normale Spinellstruktur) mit Röntgen‐Einkristalldaten. Zeitschrift für anorganische und allgemeine Chemie. 496(1). 7–20. 12 indexed citations
20.
Berthold, H. J. & Kai Köhler. (1981). Präparative und röntgenographische Untersuchungen über das System Al2S3ZnS (Temperaturbereich 800–1080°C). Zeitschrift für anorganische und allgemeine Chemie. 475(4). 45–55. 22 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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