John Ryan

1.2k total citations
57 papers, 613 citations indexed

About

John Ryan is a scholar working on Applied Mathematics, Mathematical Physics and Algebra and Number Theory. According to data from OpenAlex, John Ryan has authored 57 papers receiving a total of 613 indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Applied Mathematics, 22 papers in Mathematical Physics and 9 papers in Algebra and Number Theory. Recurrent topics in John Ryan's work include Algebraic and Geometric Analysis (51 papers), Holomorphic and Operator Theory (29 papers) and Mathematical Analysis and Transform Methods (28 papers). John Ryan is often cited by papers focused on Algebraic and Geometric Analysis (51 papers), Holomorphic and Operator Theory (29 papers) and Mathematical Analysis and Transform Methods (28 papers). John Ryan collaborates with scholars based in United States, United Kingdom and Belgium. John Ryan's co-authors include Wolfgang Sprößig, Craig A. Nolder, Hong Liu, Klaus Gürlebeck, Uwe Kähler, Junxia Li, Swanhild Bernstein, Daniele C. Struppa, Denis Constales and Charles F. Dunkl and has published in prestigious journals such as Journal of Mathematical Analysis and Applications, Transactions of the American Mathematical Society and Journal of Differential Equations.

In The Last Decade

John Ryan

52 papers receiving 559 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
John Ryan United States	14	575	144	92	72	49	57	613
Ricardo Abreu Blaya Cuba	14	657 1.1×	102 0.7×	73 0.8×	32 0.4×	28 0.6×	110	678
Bernd Ammann Germany	12	310 0.5×	236 1.6×	160 1.7×	40 0.6×	24 0.5×	46	417
David Eelbode Belgium	10	408 0.7×	76 0.5×	49 0.5×	129 1.8×	22 0.4×	62	425
Kenrô Furutani Japan	8	157 0.3×	192 1.3×	84 0.9×	32 0.4×	29 0.6×	36	263
Nikolai Vasilevski Mexico	17	745 1.3×	305 2.1×	126 1.4×	217 3.0×	12 0.2×	68	767
Jürgen Leiterer Germany	11	439 0.8×	206 1.4×	284 3.1×	64 0.9×	27 0.6×	45	570
Genkai Zhang Sweden	12	214 0.4×	226 1.6×	145 1.6×	87 1.2×	40 0.8×	52	340
Mübariz Garayev Saudi Arabia	11	279 0.5×	40 0.3×	115 1.3×	30 0.4×	36 0.7×	47	315
Bruno Colbois Switzerland	13	282 0.5×	186 1.3×	205 2.2×	15 0.2×	19 0.4×	49	410
Boris Korenblum United States	12	877 1.5×	208 1.4×	257 2.8×	141 2.0×	8 0.2×	32	932

Countries citing papers authored by John Ryan

Since Specialization

Citations

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

Fields of papers citing papers by John Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John Ryan

This figure shows the co-authorship network connecting the top 25 collaborators of John Ryan. A scholar is included among the top collaborators of John 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 John Ryan. John Ryan 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

Ryan, John, et al.. (2016). Higher Order Fermionic and Bosonic Operators on Cylinders and Hopf Manifolds. Journal of the Indian Mathematical Society. 83. 231–240. 2 indexed citations

Kaplan, Edward H., et al.. (2014). A Markov Model for Hockey: Manpower Differential and Win Probability Added. INFOR Information Systems and Operational Research. 52(2). 39–50. 7 indexed citations

Constales, Denis, et al.. (2012). HYPERBOLIC DIRAC AND LAPLACE OPERATORS ON EXAMPLES OF HYPERBOLIC SPIN MANIFOLDS. Ghent University Academic Bibliography (Ghent University). 1 indexed citations

Dunkl, Charles F., Junxia Li, John Ryan, & P. Van Lancker. (2011). Some Rarita-Schwinger Operators. arXiv (Cornell University). 1 indexed citations

Constales, Denis, et al.. (2009). Dirac Type Operators for Arithmetic Subgroups of Generalized Modular Groups. Journal für die reine und angewandte Mathematik (Crelles Journal). 2 indexed citations

Constales, Denis, et al.. (2007). k-Hypermonogenic automorphic forms. Journal of Number Theory. 126(2). 254–271. 6 indexed citations

Ryan, John, et al.. (2006). Some conformally flat spin manifolds, Dirac operators and automorphic forms. Journal of Mathematical Analysis and Applications. 325(1). 359–376. 15 indexed citations

Bernstein, Swanhild, et al.. (2006). Function theory for Laplace and Dirac-Hodge Operators in hyperbolic space. Journal d Analyse Mathématique. 98(1). 43–64. 24 indexed citations

Ryan, John, et al.. (2005). Harmonic, monogenic and hypermonogenic functions on some conformally flat manifolds in R-n arising from special arithmetic groups of the Vahlen group. Contemporary mathematics - American Mathematical Society. 370. 159–173. 3 indexed citations

10.

Ryan, John. (2000). Basic Clifford Analysis. 2(1). 224–254–224–254. 42 indexed citations

11.

Ryan, John. (1998). Dirac Operators, Conformal Transformations and Aspects of Classical Harmonic Analysis. Journal of Lie theory. 8(1). 67–82. 10 indexed citations

12.

Ryan, John. (1997). Dirac operators on spheres and hyperbolae. Boletín de la Sociedad Matemática Mexicana. 3(2). 255–270. 12 indexed citations

13.

Gürlebeck, Klaus, Uwe Kähler, John Ryan, & Wolfgang Sprößig. (1997). Clifford Analysis over Unbounded Domains. Advances in Applied Mathematics. 19(2). 216–239. 36 indexed citations

14.

Ryan, John. (1997). Clifford analysis on spheres and hyperbolae. Mathematical Methods in the Applied Sciences. 20(18). 1617–1624. 3 indexed citations

15.

Ryan, John. (1996). Intrinsic Dirac Operators inCn. Advances in Mathematics. 118(1). 99–133. 12 indexed citations

16.

Ryan, John. (1995). Cauchy-Green Type Formulae in Clifford Analysis. Transactions of the American Mathematical Society. 347(4). 1331–1331. 16 indexed citations

17.

Ryan, John. (1993). Intertwining Operators for Iterated Dirac Operators over Minkowski-Type Spaces. Journal of Mathematical Analysis and Applications. 177(1). 1–23. 6 indexed citations

18.

Ryan, John. (1990). Iterated Dirac Operators in $\mathbb C^n$. Zeitschrift für Analysis und ihre Anwendungen. 9(5). 385–401. 26 indexed citations

19.

Ryan, John. (1987). Applications of complex Clifford analysis to the study of solutions to generalized Dirac and Klein-Gordon equations with holomorphic potentials. Journal of Differential Equations. 67(3). 295–329. 7 indexed citations

20.

Ryan, John. (1985). Duality in complex Clifford analysis. Journal of Functional Analysis. 61(2). 117–135. 4 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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