Walter G. Kelley

1.6k total citations · 1 hit paper
29 papers, 1.1k citations indexed

About

Walter G. Kelley is a scholar working on Numerical Analysis, Applied Mathematics and Computational Theory and Mathematics. According to data from OpenAlex, Walter G. Kelley has authored 29 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Numerical Analysis, 12 papers in Applied Mathematics and 10 papers in Computational Theory and Mathematics. Recurrent topics in Walter G. Kelley's work include Differential Equations and Numerical Methods (17 papers), Advanced Mathematical Modeling in Engineering (10 papers) and Nonlinear Differential Equations Analysis (7 papers). Walter G. Kelley is often cited by papers focused on Differential Equations and Numerical Methods (17 papers), Advanced Mathematical Modeling in Engineering (10 papers) and Nonlinear Differential Equations Analysis (7 papers). Walter G. Kelley collaborates with scholars based in United States and South Korea. Walter G. Kelley's co-authors include Allan Peterson, Nicholas J. Gotelli and J. Bebernes and has published in prestigious journals such as Oikos, Journal of Mathematical Analysis and Applications and Journal of Differential Equations.

In The Last Decade

Walter G. Kelley

27 papers receiving 901 citations

Hit Papers

Difference Equations: An Introduction with Applications 2000 2026 2008 2017 2000 200 400 600
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. Difference Equations: An Introduction with Applications
    2000 675 citations Walter G. Kelley, Allan Peterson CERN Document Server (European Organization for Nuclear Research) profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Walter G. Kelley United States 10 651 461 199 185 168 29 1.1k
Daniel Franco Spain 18 711 1.1× 452 1.0× 177 0.9× 98 0.5× 191 1.1× 71 1.1k
Zengji Du China 20 653 1.0× 496 1.1× 287 1.4× 118 0.6× 276 1.6× 91 1.1k
Y. S. Choi United States 20 453 0.7× 251 0.5× 233 1.2× 365 2.0× 159 0.9× 57 1.1k
Shiping Lu China 20 1.0k 1.6× 512 1.1× 181 0.9× 237 1.3× 214 1.3× 111 1.3k
G. J. Butler Canada 18 320 0.5× 296 0.6× 182 0.9× 162 0.9× 519 3.1× 37 1.1k
Jitsuro Sugié Japan 17 515 0.8× 361 0.8× 158 0.8× 149 0.8× 369 2.2× 97 998
Robert E. Gaines United States 11 928 1.4× 486 1.1× 186 0.9× 263 1.4× 484 2.9× 22 1.5k
Róbert Kersner Hungary 16 560 0.9× 257 0.6× 177 0.9× 392 2.1× 193 1.1× 47 987
Richard E. Flaherty 2 1.2k 1.8× 623 1.4× 332 1.7× 488 2.6× 203 1.2× 2 1.7k
T. Yoshizawa Japan 4 377 0.6× 225 0.5× 73 0.4× 130 0.7× 173 1.0× 6 758

Countries citing papers authored by Walter G. Kelley

Since Specialization
Citations

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

Fields of papers citing papers by Walter G. Kelley

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Walter G. Kelley. 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 Walter G. Kelley. The network helps show where Walter G. Kelley may publish in the future.

Co-authorship network of co-authors of Walter G. Kelley

This figure shows the co-authorship network connecting the top 25 collaborators of Walter G. Kelley. A scholar is included among the top collaborators of Walter G. Kelley 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 Walter G. Kelley. Walter G. Kelley 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.
Kelley, Walter G.. (2003). Book Review: Theory of difference equations --- numerical methods and applications, \textup{2nd ed.}. Bulletin of the American Mathematical Society. 40(2). 259–263. 1 indexed citations
2.
Kelley, Walter G.. (2001). A Singular Perturbation Problem of Carrier and Pearson. Journal of Mathematical Analysis and Applications. 255(2). 678–697. 20 indexed citations
3.
Kelley, Walter G.. (2000). Asymptotically singular boundary value problems. Mathematical and Computer Modelling. 32(5-6). 541–548. 3 indexed citations
4.
Kelley, Walter G. & Allan Peterson. (2000). Difference Equations: An Introduction with Applications. CERN Document Server (European Organization for Nuclear Research). 675 indexed citations breakdown →
5.
Kelley, Walter G.. (1999). Singularly perturbed difference equations. The Journal of Difference Equations and Applications. 5(1). 97–110. 3 indexed citations
6.
Kelley, Walter G.. (1998). Spike layer phenomena for pairs of second-order equations. IMA Journal of Applied Mathematics. 60(1). 91–108. 2 indexed citations
7.
Kelley, Walter G.. (1996). Coexistence in reaction-diffusion systems with mutualist or predator-prey interactions. Methods and Applications of Analysis. 3(1). 1–11. 2 indexed citations
8.
Kelley, Walter G.. (1994). Asymptotic analysis of solutions in the “double root” case. Computers & Mathematics with Applications. 28(1-3). 167–173. 9 indexed citations
9.
Gotelli, Nicholas J. & Walter G. Kelley. (1993). A General Model of Metapopulation Dynamics. Oikos. 68(1). 36–36. 50 indexed citations
10.
Kelley, Walter G., et al.. (1990). Semilinear elliptic singular perturbation problems with nonuniform interior behavior. Journal of Differential Equations. 86(1). 88–101. 9 indexed citations
11.
Kelley, Walter G.. (1984). Boundary and Interior Layer Phenomena for Singularly Perturbed Systems. SIAM Journal on Mathematical Analysis. 15(4). 635–641. 2 indexed citations
12.
Kelley, Walter G.. (1982). Boundary value problems for pairs of second order equations containing a small parameter. Rocky Mountain Journal of Mathematics. 12(4). 1 indexed citations
13.
Kelley, Walter G.. (1981). The Dirichlet problem for singularly perturbed quasilinear elliptic equations. Journal of Differential Equations. 40(1). 37–52. 7 indexed citations
14.
Kelley, Walter G.. (1977). Second Order Systems with Nonlinear Boundary Conditions. Proceedings of the American Mathematical Society. 62(2). 287–287.
15.
Kelley, Walter G.. (1977). Second order systems with nonlinear boundary conditions. Proceedings of the American Mathematical Society. 62(2). 287–292. 3 indexed citations
16.
Kelley, Walter G.. (1977). A geometric method of studying two point boundary value problems for second order systems. Rocky Mountain Journal of Mathematics. 7(2). 12 indexed citations
17.
Kelley, Walter G.. (1976). Periodic Solutions of Generalized Differential Equations. SIAM Journal on Applied Mathematics. 30(1). 70–74. 5 indexed citations
18.
Kelley, Walter G.. (1975). Some existence theorems for nth-order boundary value problems. Journal of Differential Equations. 18(1). 158–169. 22 indexed citations
19.
Kelley, Walter G.. (1973). A Kneser Theorem for Volterra Integral Equations. Proceedings of the American Mathematical Society. 40(1). 183–183. 3 indexed citations
20.
Bebernes, J. & Walter G. Kelley. (1973). Some Boundary Value Problems for Generalized Differential Equations. SIAM Journal on Applied Mathematics. 25(1). 16–23. 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Daniel Franco Breakdown of academic impact, for papers by Zengji Du Breakdown of academic impact, for papers by Y. S. Choi Breakdown of academic impact, for papers by Shiping Lu Breakdown of academic impact, for papers by G. J. Butler Breakdown of academic impact, for papers by Jitsuro Sugié Breakdown of academic impact, for papers by Robert E. Gaines Breakdown of academic impact, for papers by Róbert Kersner Breakdown of academic impact, for papers by Richard E. Flaherty Breakdown of academic impact, for papers by T. Yoshizawa
Rankless by CCL
2026