Robert Michael Lewis

5.6k total citations · 1 hit paper
44 papers, 3.7k citations indexed

About

Robert Michael Lewis is a scholar working on Numerical Analysis, Atomic and Molecular Physics, and Optics and Computational Theory and Mathematics. According to data from OpenAlex, Robert Michael Lewis has authored 44 papers receiving a total of 3.7k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Numerical Analysis, 14 papers in Atomic and Molecular Physics, and Optics and 11 papers in Computational Theory and Mathematics. Recurrent topics in Robert Michael Lewis's work include Advanced Optimization Algorithms Research (14 papers), Electromagnetic Scattering and Analysis (8 papers) and Advanced Thermodynamics and Statistical Mechanics (5 papers). Robert Michael Lewis is often cited by papers focused on Advanced Optimization Algorithms Research (14 papers), Electromagnetic Scattering and Analysis (8 papers) and Advanced Thermodynamics and Statistical Mechanics (5 papers). Robert Michael Lewis collaborates with scholars based in United States, Australia and Russia. Robert Michael Lewis's co-authors include Virginia Torczon, Tamara G. Kolda, Michael W. Trosset, Joseph B. Keller, Bernard D. Seckler, Elizabeth D. Dolan, Jack K. Cohen, Anne Shepherd, Norman Bleistein and Donald Ludwig and has published in prestigious journals such as Journal of Applied Physics, Journal of Business Ethics and Communications on Pure and Applied Mathematics.

In The Last Decade

Robert Michael Lewis

41 papers receiving 3.3k citations

Hit Papers

align trajectories

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.

Optimization by Direct Search: New Perspectives on Some Classical and Modern Methods

2003 1.1k citations Tamara G. Kolda, Robert Michael Lewis et al. SIAM Review profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Robert Michael Lewis United States	20	833	729	653	584	510	44	3.7k
J. Douglas Faires United States	5	630 0.8×	677 0.9×	826 1.3×	339 0.6×	380 0.7×	8	5.3k
R. Ian Fletcher United States	5	676 0.8×	497 0.7×	592 0.9×	631 1.1×	215 0.4×	10	3.8k
Carl-Erik Fröberg Sweden	8	903 1.1×	596 0.8×	1.0k 1.6×	257 0.4×	629 1.2×	27	4.8k
Erwin Kreyszig United States	19	498 0.6×	484 0.7×	514 0.8×	386 0.7×	266 0.5×	84	4.8k
Linda Kaufman United States	20	783 0.9×	621 0.9×	424 0.6×	975 1.7×	270 0.5×	49	5.6k
Philip Rabinowitz Israel	18	880 1.1×	612 0.8×	1.4k 2.2×	243 0.4×	984 1.9×	62	5.1k
George E. Forsythe United States	27	1.4k 1.7×	802 1.1×	1.1k 1.7×	397 0.7×	627 1.2×	74	6.2k
David R. Kincaid United States	18	790 0.9×	442 0.6×	474 0.7×	326 0.6×	319 0.6×	57	3.5k
Russel E. Caflisch United States	41	760 0.9×	368 0.5×	958 1.5×	245 0.4×	566 1.1×	139	6.5k
Michael Griebel Germany	41	1.2k 1.5×	559 0.8×	781 1.2×	348 0.6×	475 0.9×	148	6.7k

Countries citing papers authored by Robert Michael Lewis

Since Specialization

Citations

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

Fields of papers citing papers by Robert Michael Lewis

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Robert Michael Lewis

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Bleistein, Norman & Robert Michael Lewis. (2018). Asymptotic Solution of a Dispersive Hyperbolic Equation With Variable Coefficients. Bulletin of Miscellaneous Information (Royal Gardens Kew).

Lewis, Robert Michael, GM O'Donovan, & Roger J. Willett. (2015). The Effect of Environmental Activism on the Long-run Market Value of a Company: A Case Study. Journal of Business Ethics. 140(3). 455–476. 5 indexed citations

Boggs, Paul T., David M. Gay, Stewart K. Griffiths, et al.. (2012). Optimization Algorithms for Hierarchical Problems with Application to Nanoporous Materials. SIAM Journal on Optimization. 22(4). 1285–1308. 3 indexed citations

Worthington, Bruce, et al.. (2009). Saving Millions and Avoiding Disaster – The O'Hare Hot Tap Project. 689–699. 6 indexed citations

Lewis, Robert Michael, et al.. (2008). RCM data integration - ontologies and the third tier. 11–11.

Lewis, Robert Michael, Anne Shepherd, & Virginia Torczon. (2007). Implementing Generating Set Search Methods for Linearly Constrained Minimization. SIAM Journal on Scientific Computing. 29(6). 2507–2530. 77 indexed citations

Dolan, Elizabeth D., Robert Michael Lewis, & Virginia Torczon. (2003). On the Local Convergence of Pattern Search. SIAM Journal on Optimization. 14(2). 567–583. 149 indexed citations

Kolda, Tamara G., Robert Michael Lewis, & Virginia Torczon. (2003). Optimization by Direct Search: New Perspectives on Some Classical and Modern Methods. SIAM Review. 45(3). 385–482. 1105 indexed citations breakdown →

Lewis, Robert Michael, Virginia Torczon, & Michael W. Trosset. (2000). Direct search methods: then and now. Journal of Computational and Applied Mathematics. 124(1-2). 191–207. 465 indexed citations

10.

Lewis, Robert Michael. (1997). A nonlinear programming perspective on sensitivity calculations for systems governed by state equations. SIAM Review. 7 indexed citations

11.

Lewis, Robert Michael & Jack K. Cohen. (1970). Asymptotic Theory of Transition Radiation. Journal of Mathematical Physics. 11(1). 296–305. 2 indexed citations

12.

Lewis, Robert Michael, et al.. (1969). Uniform Asymptotic Theory of Edge Diffraction. Journal of Mathematical Physics. 10(12). 2291–2305. 87 indexed citations

13.

Lewis, Robert Michael, et al.. (1967). Asymptotic solution of initial boundary-value problems for hyperbolic systems. Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences. 262(1129). 387–411. 6 indexed citations

14.

Lewis, Robert Michael, et al.. (1966). Progressing waves radiated from a moving point source in an inhomogeneous medium. Journal of Differential Equations. 2(3). 328–350. 3 indexed citations

15.

Lewis, Robert Michael, et al.. (1966). Radiation and Propagation of Electromagnetic Waves from Moving Sources. Radio Science. 1(9). 1029–1030. 6 indexed citations

16.

Bleistein, Norman & Robert Michael Lewis. (1966). Space-Time Diffraction for Dispersive Hyperbolic Equations. SIAM Journal on Applied Mathematics. 14(6). 1454–1470. 3 indexed citations

17.

Lewis, Robert Michael. (1962). Quantum Statistics and the Boltzmann Equation. Journal of Mathematical Physics. 3(6). 1229–1246. 2 indexed citations

18.

Lewis, Robert Michael. (1958). Discontinuous Initial Value Problems for Symmetric Hyperbolic Linear Differential Equations. Indiana University Mathematics Journal. 7(4). 571–592. 6 indexed citations

19.

Lewis, Robert Michael. (1958). Asymptotic Expansion of Steady-State Solutions of Symmetric Hyperbolic Linear Differential Equations. Indiana University Mathematics Journal. 7(4). 593–628. 5 indexed citations

20.

Keller, Joseph B., Robert Michael Lewis, & Bernard D. Seckler. (1956). Asymptotic solution of some diffraction problems. Communications on Pure and Applied Mathematics. 9(2). 207–265. 143 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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