Robert J. Sacker

3.4k total citations
60 papers, 2.4k citations indexed

About

Robert J. Sacker is a scholar working on Public Health, Environmental and Occupational Health, Statistical and Nonlinear Physics and Geometry and Topology. According to data from OpenAlex, Robert J. Sacker has authored 60 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Public Health, Environmental and Occupational Health, 18 papers in Statistical and Nonlinear Physics and 16 papers in Geometry and Topology. Recurrent topics in Robert J. Sacker's work include Mathematical and Theoretical Epidemiology and Ecology Models (20 papers), Quantum chaos and dynamical systems (16 papers) and Advanced Differential Equations and Dynamical Systems (14 papers). Robert J. Sacker is often cited by papers focused on Mathematical and Theoretical Epidemiology and Ecology Models (20 papers), Quantum chaos and dynamical systems (16 papers) and Advanced Differential Equations and Dynamical Systems (14 papers). Robert J. Sacker collaborates with scholars based in United States, Russia and China. Robert J. Sacker's co-authors include George R. Sell, Saber Elaydi, М. М. Лаврентьев, Hubertus F. von Bremen, Cymra Haskell, Yuri A. Kuznetsov, John R. Haddock, Yi Yang, Bernd Aulbach and Linda J. S. Allen and has published in prestigious journals such as Technometrics, Communications on Pure and Applied Mathematics and Journal of Mathematical Analysis and Applications.

In The Last Decade

Robert J. Sacker

57 papers receiving 2.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Robert J. Sacker United States 20 809 766 747 716 501 60 2.4k
Ray Redheffer United States 15 515 0.6× 308 0.4× 559 0.7× 592 0.8× 630 1.3× 78 2.5k
Yingfei Yi United States 22 642 0.8× 411 0.5× 382 0.5× 449 0.6× 408 0.8× 80 1.6k
Carmen Chicone United States 23 1.1k 1.3× 409 0.5× 557 0.7× 523 0.7× 245 0.5× 117 2.8k
J. B. McLeod United States 23 555 0.7× 417 0.5× 344 0.5× 856 1.2× 705 1.4× 65 2.5k
D. H. Sattinger United States 28 1.6k 2.0× 1.5k 2.0× 1.2k 1.5× 1.5k 2.1× 444 0.9× 74 4.7k
Shui-Nee Chow United States 31 1.8k 2.2× 848 1.1× 1.2k 1.6× 1.1k 1.6× 882 1.8× 91 4.9k
John Mallet‐Paret United States 36 1.2k 1.5× 666 0.9× 1.3k 1.8× 999 1.4× 980 2.0× 75 4.6k
Yuncheng You United States 15 808 1.0× 393 0.5× 912 1.2× 330 0.5× 184 0.4× 68 2.0k
W. A. Coppel Australia 19 634 0.8× 430 0.6× 645 0.9× 571 0.8× 176 0.4× 42 2.1k
Bernold Fiedler Germany 27 938 1.2× 313 0.4× 644 0.9× 244 0.3× 172 0.3× 95 2.2k

Countries citing papers authored by Robert J. Sacker

Since Specialization
Citations

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

Fields of papers citing papers by Robert J. Sacker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert J. Sacker. 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 Robert J. Sacker. The network helps show where Robert J. Sacker may publish in the future.

Co-authorship network of co-authors of Robert J. Sacker

This figure shows the co-authorship network connecting the top 25 collaborators of Robert J. Sacker. A scholar is included among the top collaborators of Robert J. Sacker 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 Robert J. Sacker. Robert J. Sacker 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.
Sacker, Robert J., et al.. (2021). Bifurcation in the almost periodic $ 2 $D Ricker map. Discrete and Continuous Dynamical Systems - B. 27(3). 1263–1263.
2.
Sacker, Robert J.. (2020). A New Metric Yielding a Richer Class of Unbounded Functions Having Compact Hulls in the Shift Flow. Journal of Dynamics and Differential Equations. 33(2). 833–848. 1 indexed citations
3.
Haskell, Cymra, et al.. (2012). Difference equations with the Allee effect and the periodic Sigmoid Beverton–Holt equation revisited. Journal of Biological Dynamics. 6(2). 1019–1033. 13 indexed citations
4.
Elaydi, Saber & Robert J. Sacker. (2009). Population models with Allee effect: a new model. Journal of Biological Dynamics. 4(4). 397–408. 76 indexed citations
5.
Sacker, Robert J. & Hubertus F. von Bremen. (2007). Dynamic reduction with applications to mathematical biology and other areas. Journal of Biological Dynamics. 1(4). 437–453. 12 indexed citations
6.
Elaydi, Saber & Robert J. Sacker. (2006). Periodic difference equations, population biology and the Cushing–Henson conjectures. Mathematical Biosciences. 201(1-2). 195–207. 46 indexed citations
7.
Allen, Linda J. S., Bernd Aulbach, Saber Elaydi, & Robert J. Sacker. (2005). Difference Equations And Discrete Dynamical Systems: Proceedings of the 9th International Conference University of Southern California, Los Angeles, California, USA, 2-7 August 2004. Digital Commons - Trinity University (Trinity University). 2 indexed citations
8.
Elaydi, Saber & Robert J. Sacker. (2004). Global stability of periodic orbits of non-autonomous difference equations and population biology. Journal of Differential Equations. 208(1). 258–273. 95 indexed citations
9.
Sacker, Robert J. & George R. Sell. (1994). Dichotomies for Linear Evolutionary Equations in Banach Spaces. Journal of Differential Equations. 113(1). 17–67. 180 indexed citations
10.
Sacker, Robert J. & George R. Sell. (1980). The spectrum of an invariant submanifold. Journal of Differential Equations. 38(2). 135–160. 42 indexed citations
11.
Haddock, John R. & Robert J. Sacker. (1980). Stability and asymptotic integration for certain linear systems of functional differential equations. Journal of Mathematical Analysis and Applications. 76(2). 328–338. 15 indexed citations
12.
Sacker, Robert J.. (1979). The splitting index for linear differential systems. Journal of Differential Equations. 33(3). 368–405. 36 indexed citations
13.
Sacker, Robert J. & George R. Sell. (1978). A spectral theory for linear differential systems. Journal of Differential Equations. 27(3). 320–358. 349 indexed citations
14.
Sacker, Robert J.. (1978). Existence of dichotomies and invariant splittings for linear differential systems IV. Journal of Differential Equations. 27(1). 106–137. 27 indexed citations
15.
Sacker, Robert J. & George R. Sell. (1976). Existence of dichotomies and invariant splittings for linear differential systems, II. Journal of Differential Equations. 22(2). 478–496. 213 indexed citations
16.
Sacker, Robert J. & George R. Sell. (1976). Existence of dichotomies and invariant splittings for linear differential systems, III. Journal of Differential Equations. 22(2). 497–522. 83 indexed citations
17.
Sacker, Robert J. & George R. Sell. (1974). Finite extensions of minimal transformation groups. Transactions of the American Mathematical Society. 190(0). 325–334. 17 indexed citations
18.
Sacker, Robert J. & George R. Sell. (1974). Finite Extensions of Minimal Transformation Groups. Transactions of the American Mathematical Society. 190. 325–325. 6 indexed citations
19.
Sacker, Robert J. & George R. Sell. (1974). Existence of dichotomies and invariant splittings for linear differential systems I. Journal of Differential Equations. 15(3). 429–458. 158 indexed citations
20.
Sacker, Robert J. & George R. Sell. (1972). On the existence of periodic solutions on 2-manifolds. Journal of Differential Equations. 11(3). 449–463. 8 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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