James P. Ryan

906 total citations
16 papers, 399 citations indexed

About

James P. Ryan is a scholar working on Statistical and Nonlinear Physics, Nuclear and High Energy Physics and Astronomy and Astrophysics. According to data from OpenAlex, James P. Ryan has authored 16 papers receiving a total of 399 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Statistical and Nonlinear Physics, 16 papers in Nuclear and High Energy Physics and 6 papers in Astronomy and Astrophysics. Recurrent topics in James P. Ryan's work include Noncommutative and Quantum Gravity Theories (16 papers), Black Holes and Theoretical Physics (16 papers) and Cosmology and Gravitation Theories (6 papers). James P. Ryan is often cited by papers focused on Noncommutative and Quantum Gravity Theories (16 papers), Black Holes and Theoretical Physics (16 papers) and Cosmology and Gravitation Theories (6 papers). James P. Ryan collaborates with scholars based in Germany, Canada and France. James P. Ryan's co-authors include Bianca Dittrich, Razvan Gurău, Daniele Oriti, Etera R. Livine, Lorenzo Sindoni, Valentin Bonzom, Adrian Tanasă, Daniele Pranzetti, Wojciech Kamiński and Sylvain Carrozza and has published in prestigious journals such as Journal of High Energy Physics, New Journal of Physics and Classical and Quantum Gravity.

In The Last Decade

James P. Ryan

16 papers receiving 381 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
James P. Ryan Germany 12 365 364 202 45 31 16 399
Sebastian Steinhaus Germany 13 408 1.1× 391 1.1× 257 1.3× 85 1.9× 24 0.8× 26 445
Sylvain Carrozza France 13 343 0.9× 292 0.8× 186 0.9× 58 1.3× 49 1.6× 19 403
Winston J. Fairbairn France 10 499 1.4× 512 1.4× 292 1.4× 95 2.1× 47 1.5× 17 532
Benjamin Bähr Germany 13 470 1.3× 464 1.3× 297 1.5× 75 1.7× 35 1.1× 24 501
Michael Reisenberger Uruguay 9 374 1.0× 384 1.1× 256 1.3× 74 1.6× 32 1.0× 10 431
Wojciech Kamiński Poland 15 588 1.6× 586 1.6× 437 2.2× 98 2.2× 27 0.9× 29 635
Claudio Perini France 9 284 0.8× 294 0.8× 185 0.9× 38 0.8× 23 0.7× 13 309
Hanno Sahlmann Germany 14 505 1.4× 516 1.4× 337 1.7× 115 2.6× 22 0.7× 46 574
Henrique Gomes United Kingdom 12 357 1.0× 306 0.8× 334 1.7× 91 2.0× 27 0.9× 30 451
Giorgio Immirzi Italy 7 272 0.7× 250 0.7× 173 0.9× 41 0.9× 26 0.8× 15 314

Countries citing papers authored by James P. Ryan

Since Specialization
Citations

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

Fields of papers citing papers by James P. Ryan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James P. Ryan. 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 James P. Ryan. The network helps show where James P. Ryan may publish in the future.

Co-authorship network of co-authors of James P. Ryan

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

All Works

16 of 16 papers shown
1.
Benedetti, Dario & James P. Ryan. (2017). Capturing the phase diagram of (2  +  1)-dimensional CDT using a balls-in-boxes model. Classical and Quantum Gravity. 34(10). 105012–105012. 3 indexed citations
2.
Ryan, James P.. (2016). (D+1)-Colored Graphs - a Review of Sundry Properties. Symmetry Integrability and Geometry Methods and Applications. 3 indexed citations
3.
Oriti, Daniele, Daniele Pranzetti, James P. Ryan, & Lorenzo Sindoni. (2015). Generalized quantum gravity condensates for homogeneous geometries and cosmology. Classical and Quantum Gravity. 32(23). 235016–235016. 30 indexed citations
4.
Kamiński, Wojciech, Daniele Oriti, & James P. Ryan. (2014). Towards a double scaling limit for tensor models: probing sub-dominant orders. New Journal of Physics. 16(6). 63048–63048. 19 indexed citations
5.
Baratin, Aristide, Sylvain Carrozza, Daniele Oriti, James P. Ryan, & Matteo Smerlak. (2014). Melonic Phase Transition in Group Field Theory. Letters in Mathematical Physics. 104(8). 1003–1017. 20 indexed citations
6.
Bonzom, Valentin, Razvan Gurău, James P. Ryan, & Adrian Tanasă. (2014). The double scaling limit of random tensor models. Journal of High Energy Physics. 2014(9). 33 indexed citations
7.
Dittrich, Bianca & James P. Ryan. (2013). On the role of the Barbero–Immirzi parameter in discrete quantum gravity. Classical and Quantum Gravity. 30(9). 95015–95015. 24 indexed citations
8.
Dittrich, Bianca, et al.. (2013). Spin Foam Models with Finite Groups. Apollo (University of Cambridge). 2013. 1–28. 13 indexed citations
9.
Gurău, Razvan & James P. Ryan. (2013). Melons are Branched Polymers. Annales Henri Poincaré. 15(11). 2085–2131. 70 indexed citations
10.
Ryan, James P.. (2012). Tensor models and embedded Riemann surfaces. Physical review. D. Particles, fields, gravitation, and cosmology. 85(2). 30 indexed citations
11.
Dittrich, Bianca & James P. Ryan. (2011). Phase space descriptions for simplicial 4D geometries. Classical and Quantum Gravity. 28(6). 65006–65006. 65 indexed citations
12.
Livine, Etera R., Daniele Oriti, & James P. Ryan. (2011). Effective Hamiltonian constraint from group field theory. Classical and Quantum Gravity. 28(24). 245010–245010. 23 indexed citations
13.
Dittrich, Bianca & James P. Ryan. (2010). Simplicity in simplicial phase space. Physical review. D. Particles, fields, gravitation, and cosmology. 82(6). 47 indexed citations
14.
Livine, Etera R. & James P. Ryan. (2009). A note on B-observables in Ponzano–Regge 3D quantum gravity. Classical and Quantum Gravity. 26(3). 35013–35013. 12 indexed citations
15.
Freidel, Laurent & James P. Ryan. (2008). Spin foam models: the dynamics of quantum geometry. Classical and Quantum Gravity. 25(11). 114004–114004. 2 indexed citations
16.
Livine, Etera R. & James P. Ryan. (2008). N = 2 supersymmetric spin foams in three dimensions. Classical and Quantum Gravity. 25(17). 175014–175014. 5 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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