This map shows the geographic impact of J. L. Simon'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 J. L. Simon with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. L. Simon more than expected).
This network shows the impact of papers produced by J. L. Simon. 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 J. L. Simon. The network helps show where J. L. Simon may publish in the future.
Co-authorship network of co-authors of J. L. Simon
This figure shows the co-authorship network connecting the top 25 collaborators of J. L. Simon.
A scholar is included among the top collaborators of J. L. Simon 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 J. L. Simon. J. L. Simon is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Bretagnon, P., P. M. Mathews, & J. L. Simon. (2000). Non rigid Earth rotation. 73–76.1 indexed citations
10.
Bretagnon, P. & J. L. Simon. (1990). General theory of the Jupiter-Saturn pair using an iterative method. A&A. 239. 387–398.2 indexed citations
11.
Simon, J. L. & F. Joutel. (1988). Calcul des perturbations mutuelles de Jupiter et Saturne en fonction d'une seule variable angulaire. 205. 328–334.5 indexed citations
12.
Simon, J. L.. (1987). Calcul des dérivées premières et secondes des équations de Lagrange par analyse harmonique. 175. 303–308.10 indexed citations
13.
Laskar, J. & J. L. Simon. (1987). Fitting a line to a sine. Celestial Mechanics and Dynamical Astronomy. 43(1-4). 37–45.4 indexed citations
14.
Bretagnon, P. & J. L. Simon. (1986). Planetary Programs and Tables from -4000 to +2800. 49. 97.14 indexed citations
15.
Simon, J. L.. (1983). Theory for the motion of the four giant planets - The TOP 82 solution. 120(2). 197–202.7 indexed citations
16.
Simon, J. L. & G. Francou. (1982). Improvement of the theories of Jupiter and Saturn by harmonic analysis. 114(1). 125–130.6 indexed citations
17.
Simon, J. L. & G. Francou. (1981). A third order theory of the masses of four large planets. 103(2). 223–243.3 indexed citations
18.
Simon, J. L. & P. Bretagnon. (1978). Results of Second Order Perturbations of the Four Large Planets. Astronomy & Astrophysics Supplement Series. 34. 183–194.1 indexed citations
19.
Simon, J. L. & P. Bretagnon. (1975). Results of first order perturbations of the four giant planets.. Astronomy & Astrophysics Supplement Series. 22. 107–160.1 indexed citations
20.
Simon, J. L. & J. Chapront. (1974). Second Order Perturbations for Jupiter and Saturn. Comparison with Le Verrier. 32. 51.6 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.