Claes Uggla

2.9k total citations · 1 hit paper
71 papers, 1.6k citations indexed

About

Claes Uggla is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics and Statistical and Nonlinear Physics. According to data from OpenAlex, Claes Uggla has authored 71 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 67 papers in Astronomy and Astrophysics, 54 papers in Nuclear and High Energy Physics and 17 papers in Statistical and Nonlinear Physics. Recurrent topics in Claes Uggla's work include Cosmology and Gravitation Theories (65 papers), Black Holes and Theoretical Physics (54 papers) and Advanced Differential Geometry Research (17 papers). Claes Uggla is often cited by papers focused on Cosmology and Gravitation Theories (65 papers), Black Holes and Theoretical Physics (54 papers) and Advanced Differential Geometry Research (17 papers). Claes Uggla collaborates with scholars based in Sweden, Canada and United States. Claes Uggla's co-authors include J. Wainwright, Ulf S. Nilsson, Henk van Elst, George Ellis, Jakob Heinzle, David Hobill, Reza Tavakol, Peter K. S. Dunsby, G. F. R. Ellis and C. G. Hewitt and has published in prestigious journals such as Physical Review Letters, The Astrophysical Journal and Annals of Physics.

In The Last Decade

Claes Uggla

69 papers receiving 1.6k citations

Hit Papers

Dynamical Systems in Cosmology 1997 2026 2006 2016 1997 100 200 300 400 500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Dynamical Systems in Cosmology
    1997 532 citations J. Wainwright, G. F. R. Ellis et al. Cambridge University Press eBooks profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Claes Uggla Sweden 19 1.5k 1.3k 325 101 84 71 1.6k
José M. M. Senovilla Spain 21 1.6k 1.0× 1.4k 1.1× 430 1.3× 146 1.4× 71 0.8× 102 1.7k
M. Demiański Poland 21 1.5k 1.0× 1.0k 0.8× 321 1.0× 69 0.7× 104 1.2× 84 1.6k
R. Aldrovandi Brazil 14 1.0k 0.7× 887 0.7× 297 0.9× 31 0.3× 104 1.2× 63 1.2k
Joseph P. Conlon United Kingdom 26 1.7k 1.1× 1.9k 1.5× 134 0.4× 28 0.3× 39 0.5× 56 2.1k
Eoin Ó Colgáin South Korea 28 1.7k 1.1× 1.4k 1.1× 553 1.7× 33 0.3× 50 0.6× 64 2.0k
Jiřı́ Podolský Czechia 23 1.7k 1.1× 1.6k 1.2× 432 1.3× 106 1.0× 30 0.4× 89 1.9k
V. A. Belinskiǐ Russia 13 1.6k 1.0× 1.4k 1.1× 779 2.4× 59 0.6× 37 0.4× 31 1.8k
Robert T. Jantzen United States 20 1.0k 0.7× 713 0.5× 299 0.9× 52 0.5× 55 0.7× 91 1.2k
Aaron Held Germany 19 1.1k 0.7× 1.1k 0.9× 430 1.3× 73 0.7× 34 0.4× 44 1.4k
Akira Tomimatsu Japan 19 1.3k 0.9× 1.1k 0.8× 304 0.9× 43 0.4× 39 0.5× 66 1.4k

Countries citing papers authored by Claes Uggla

Since Specialization
Citations

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

Fields of papers citing papers by Claes Uggla

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Claes Uggla

This figure shows the co-authorship network connecting the top 25 collaborators of Claes Uggla. A scholar is included among the top collaborators of Claes Uggla 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 Claes Uggla. Claes Uggla 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.
Uggla, Claes, et al.. (2023). Quintessential α-attractor inflation:a dynamical systems analysis. Journal of Cosmology and Astroparticle Physics. 2023(11). 83–83. 8 indexed citations
2.
Uggla, Claes, et al.. (2022). Bifurcations and chaos in Hořava–Lifshitz cosmology. Advances in Theoretical and Mathematical Physics. 26(7). 2095–2211.
3.
Uggla, Claes, et al.. (2022). Quintessence from a state space perspective. Physics of the Dark Universe. 39. 101146–101146. 9 indexed citations
4.
Uggla, Claes, et al.. (2017). Inflationary α-attractor cosmology: A global dynamical systems perspective. Physical review. D. 95(8). 16 indexed citations
5.
Uggla, Claes, et al.. (2015). Global dynamics and inflationary center manifold and slow-roll approximants. Journal of Mathematical Physics. 56(1). 24 indexed citations
6.
Uggla, Claes, et al.. (2015). Scalar field deformations ofΛCDMcosmology. Physical review. D. Particles, fields, gravitation, and cosmology. 92(10). 10 indexed citations
7.
Uggla, Claes & J. Wainwright. (2014). Simple expressions for second order density perturbations in standard cosmology. Classical and Quantum Gravity. 31(10). 105008–105008. 9 indexed citations
8.
Uggla, Claes, et al.. (2013). Bianchi type I models with two tilted fluids.
9.
Uggla, Claes & J. Wainwright. (2013). Asymptotic analysis of perturbed dust cosmologies to second order. General Relativity and Gravitation. 45(8). 1467–1492. 4 indexed citations
10.
Uggla, Claes, et al.. (2010). Perfect fluids and generic spacelike singularities. Classical and Quantum Gravity. 27(2). 25013–25013. 3 indexed citations
11.
Andersson, Lars, Henk van Elst, W C Lim, & Claes Uggla. (2005). Asymptotic Silence of Generic Cosmological Singularities. Physical Review Letters. 94(5). 51101–51101. 37 indexed citations
12.
Carr, B. J., A. A. Coley, Martin Goliath, Ulf S. Nilsson, & Claes Uggla. (1999). Physical interpretation of self-similar spherically symmetric perfect-fluid models - combining the comoving and homothetic approach. arXiv (Cornell University). 1 indexed citations
13.
Wainwright, J., G. F. R. Ellis, George Ellis, et al.. (1997). Dynamical Systems in Cosmology. Cambridge University Press eBooks. 532 indexed citations breakdown →
14.
Uggla, Claes, et al.. (1991). Remarks about late stage homogeneous cosmological dynamics. General Relativity and Gravitation. 23(8). 947–966. 5 indexed citations
15.
Rosquist, Kjell & Claes Uggla. (1991). Killing tensors in two-dimensional space-times with applications to cosmology. Journal of Mathematical Physics. 32(12). 3412–3422. 21 indexed citations
16.
Rosquist, Kjell, Claes Uggla, & Robert T. Jantzen. (1990). Extended dynamics and symmetries in perfect fluid Bianchi cosmologies. Classical and Quantum Gravity. 7(4). 625–637. 9 indexed citations
17.
Uggla, Claes & Kjell Rosquist. (1990). New exact perfect fluid solutions of Einstein's equations. II. Classical and Quantum Gravity. 7(12). L279–L283. 8 indexed citations
18.
Uggla, Claes. (1990). New exact perfect fluid solutions of Einstein's equations. Classical and Quantum Gravity. 7(8). L171–L174. 6 indexed citations
19.
Rosquist, Kjell, et al.. (1989). Geometrized Field Equations for Bianchi Cosmology. General Relativity and Gravitation. 351. 1 indexed citations
20.
Uggla, Claes. (1989). Analysis of approximate and exact cosmological solutions in general relativity. 2 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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2026