O. Ragos

1.0k total citations
46 papers, 743 citations indexed

About

O. Ragos is a scholar working on Astronomy and Astrophysics, Aerospace Engineering and Statistical and Nonlinear Physics. According to data from OpenAlex, O. Ragos has authored 46 papers receiving a total of 743 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Astronomy and Astrophysics, 18 papers in Aerospace Engineering and 11 papers in Statistical and Nonlinear Physics. Recurrent topics in O. Ragos's work include Spacecraft Dynamics and Control (18 papers), Astro and Planetary Science (13 papers) and Cosmology and Gravitation Theories (10 papers). O. Ragos is often cited by papers focused on Spacecraft Dynamics and Control (18 papers), Astro and Planetary Science (13 papers) and Cosmology and Gravitation Theories (10 papers). O. Ragos collaborates with scholars based in Greece, Canada and United States. O. Ragos's co-authors include Sotiris Kotsiantis, Georgios Kostopoulos, E. A. Perdios, Stamatis Karlos, Michael N. Vrahatis, M.N. Vrahatis, V. S. Kalantonis, Panos Fitsilis, Peter Kravanja and Vasile Mioc and has published in prestigious journals such as Computer Physics Communications, Astronomy and Astrophysics and Applied Sciences.

In The Last Decade

O. Ragos

44 papers receiving 696 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
O. Ragos Greece	16	269	189	155	138	89	46	743
Victor Pankratius Germany	15	97 0.4×	68 0.4×	130 0.8×	85 0.6×	7 0.1×	61	619
Donald W. Davies United States	15	369 1.4×	139 0.7×	193 1.2×	9 0.1×	89 1.0×	36	807
D. W. Davies United States	13	223 0.8×	84 0.4×	95 0.6×	6 0.0×	29 0.3×	34	840
G.D. van Albada Netherlands	17	163 0.6×	32 0.2×	91 0.6×	5 0.0×	30 0.3×	62	778
Haifeng Yang China	14	55 0.2×	113 0.6×	257 1.7×	3 0.0×	42 0.5×	72	687
Hank Childs United States	21	28 0.1×	50 0.3×	199 1.3×	12 0.1×	79 0.9×	108	1.6k
Dan Kalman United States	13	17 0.1×	52 0.3×	140 0.9×	13 0.1×	265 3.0×	66	1.1k
Lin F. Yang United States	14	127 0.5×	11 0.1×	280 1.8×	4 0.0×	38 0.4×	98	705
Kushal Kanti Ghosh India	17	91 0.3×	9 0.0×	462 3.0×	4 0.0×	34 0.4×	32	880
Hongwei Yang China	12	13 0.0×	33 0.2×	251 1.6×	27 0.2×	25 0.3×	60	816

Countries citing papers authored by O. Ragos

Since Specialization

Citations

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

Fields of papers citing papers by O. Ragos

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of O. Ragos

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

All Works

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20 of 20 papers shown

Kalantonis, V. S., et al.. (2025). Numerical exploration of the Lyapunov families and their spatial bifurcations in the R3BP under the presence of a three-body interaction. International Journal of Non-Linear Mechanics. 178. 105152–105152.

Ragos, O.. (2022). Short and long period periodic orbits around a stable collinear equilibrium point in the circular restricted three-body problem with a three-body interaction. New Astronomy. 98. 101900–101900. 5 indexed citations

Ragos, O., et al.. (2021). A Case Study of Interpretable Counterfactual Explanations for the Task of Predicting Student Academic Performance. 120–125. 4 indexed citations

Kostopoulos, Georgios, et al.. (2021). Fuzzy-based active learning for predicting student academic performance using autoML: a step-wise approach. Journal of Computing in Higher Education. 33(3). 635–667. 18 indexed citations

Fitsilis, Panos, et al.. (2020). Nexus Services in Smart City Ecosystems. Journal of the Knowledge Economy. 12(2). 431–451. 13 indexed citations

Kostopoulos, Georgios, et al.. (2020). Fuzzy-based Active Learning for Predicting Student Academic Performance. 1–6. 4 indexed citations

Kostopoulos, Georgios, et al.. (2019). Implementing AutoML in Educational Data Mining for Prediction Tasks. Applied Sciences. 10(1). 90–90. 68 indexed citations

Ragos, O., et al.. (2015). Quantum and post-Newtonian effects in the anomalistic period and the mean motion of celestial bodies. Astrophysics and Space Science. 358(1). 2 indexed citations

Ragos, O., et al.. (2011). Calculation of radar signal delays in the vicinity of the Sun due to the contribution of a Yukawa correction term in the gravitational potential. Astrophysics and Space Science. 334(1). 71–74. 6 indexed citations

10.

Ragos, O., et al.. (2010). Yukawa-type potential effects in the anomalistic period of celestial bodies. Astrophysics and Space Science. 332(1). 107–113. 19 indexed citations

11.

Papadakis, K. E., et al.. (2008). Asymmetric periodic orbits in the photogravitational Copenhagen problem. Journal of Computational and Applied Mathematics. 227(1). 102–114. 7 indexed citations

12.

Perdios, E. A. & O. Ragos. (2004). Asymptotic and periodic motion around collinear equilibria in Chermnykh's problem. Astronomy and Astrophysics. 414(1). 361–371. 15 indexed citations

13.

Kalantonis, V. S., et al.. (2003). Deflation techniques for the determination of periodic solutions of a certain period. Astrophysics and Space Science. 288(4). 489–497. 10 indexed citations

14.

Ragos, O., E. A. Perdios, V. S. Kalantonis, & Michael N. Vrahatis. (2001). On the equilibrium points of the relativistic restricted three-body problem. Nonlinear Analysis. 47(5). 3413–3418. 23 indexed citations

15.

Vrahatis, M.N., O. Ragos, & George Androulakis. (2001). Computing families of periodic orbits through optimization methods. Nonlinear Analysis. 47(5). 3449–3454. 3 indexed citations

16.

Kravanja, Peter, et al.. (2000). ZEAL: A mathematical software package for computing zeros of analytic functions. Computer Physics Communications. 124(2-3). 212–232. 21 indexed citations

17.

Ragos, O., et al.. (1997). Stability Regions and Quasi-Periodic Motion in the Vicinity of Triangular Equilibrium Points. Celestial Mechanics and Dynamical Astronomy. 67(4). 251–274. 4 indexed citations

18.

Ragos, O., et al.. (1995). A numerical study of the influence of the Poynting-Robertson effect on the equilibrium points of the photogravitational restricted three-body problem II. Out of plane case. A&A. 300. 568. 24 indexed citations

19.

Ragos, O., et al.. (1990). Periodic solutions around the collinear langrangian points in the photo gravitational restricted three-body problem: Sun-Jupiter case. Celestial Mechanics and Dynamical Astronomy. 50(4). 325–347. 27 indexed citations

20.

Ragos, O., et al.. (1988). The zero velocity surfaces in the photogravitational restricted three-body problem. Earth Moon and Planets. 41(3). 257–278. 11 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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