D. Ralph

404 total citations
9 papers, 239 citations indexed

About

D. Ralph is a scholar working on Computational Theory and Mathematics, Numerical Analysis and Civil and Structural Engineering. According to data from OpenAlex, D. Ralph has authored 9 papers receiving a total of 239 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Computational Theory and Mathematics, 5 papers in Numerical Analysis and 3 papers in Civil and Structural Engineering. Recurrent topics in D. Ralph's work include Optimization and Variational Analysis (5 papers), Advanced Optimization Algorithms Research (5 papers) and Structural Health Monitoring Techniques (2 papers). D. Ralph is often cited by papers focused on Optimization and Variational Analysis (5 papers), Advanced Optimization Algorithms Research (5 papers) and Structural Health Monitoring Techniques (2 papers). D. Ralph collaborates with scholars based in Australia, United States and Canada. D. Ralph's co-authors include Sven Leyffer, Stefan Scholtes, R. Fletcher, J. Cl. De Bremaecker, Michael C. Ferris, B. D. Craven, B. M. Glover, Adrian S. Lewis, Xiaoqi Yang and Andrew F. Coburn and has published in prestigious journals such as Engineering Fracture Mechanics, SIAM Journal on Optimization and Nonlinear Analysis.

In The Last Decade

D. Ralph

9 papers receiving 213 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
D. Ralph Australia	7	125	96	76	27	19	9	239
M. J. D. Powell United Kingdom	2	120 1.0×	124 1.3×	86 1.1×	28 1.0×	35 1.8×	3	338
Sami Viitanen Finland	5	96 0.8×	62 0.6×	28 0.4×	13 0.5×	18 0.9×	7	247
Shaun A. Forth United Kingdom	7	56 0.4×	52 0.5×	65 0.9×	10 0.4×	12 0.6×	14	271
Miguel Sama Spain	12	329 2.6×	206 2.1×	47 0.6×	48 1.8×	39 2.1×	50	392
Carl Geiger Germany	5	168 1.3×	174 1.8×	37 0.5×	38 1.4×	23 1.2×	11	325
Caroline Sainvitu France	9	145 1.2×	85 0.9×	22 0.3×	19 0.7×	28 1.5×	26	293
Elvio A. Pilotta Argentina	9	131 1.0×	171 1.8×	54 0.7×	7 0.3×	4 0.2×	12	291
Frédéric Bonnans France	8	66 0.5×	34 0.4×	62 0.8×	11 0.4×	8 0.4×	21	253
Anthony F. Hotz United States	5	36 0.3×	21 0.2×	334 4.4×	18 0.7×	20 1.1×	10	448
Muhammad Mujtaba Shaikh Pakistan	11	48 0.4×	77 0.8×	52 0.7×	8 0.3×	15 0.8×	42	340

Countries citing papers authored by D. Ralph

Since Specialization

Citations

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

Fields of papers citing papers by D. Ralph

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of D. Ralph

This figure shows the co-authorship network connecting the top 25 collaborators of D. Ralph. A scholar is included among the top collaborators of D. Ralph 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 D. Ralph. D. Ralph 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:

9 of 9 papers shown

1.

Caccioli, Fabio, et al.. (2014). China-Japan Geopolitical Conflict Scenario. 1 indexed citations

2.

Fletcher, R., Sven Leyffer, D. Ralph, & Stefan Scholtes. (2006). Local Convergence of SQP Methods for Mathematical Programs with Equilibrium Constraints. SIAM Journal on Optimization. 17(1). 259–286. 161 indexed citations

3.

Yang, Xiaoqi & D. Ralph. (2005). Characterizations for perturbed exact penalty functions. Nonlinear Analysis. 62(1). 101–106. 2 indexed citations

4.

Bremaecker, J. Cl. De, Michael C. Ferris, & D. Ralph. (2000). Compressional fractures considered as contact problems and mixed complementarity problems. Engineering Fracture Mechanics. 66(3). 287–303. 26 indexed citations

5.

Ralph, D., et al.. (2000). Finite Element Model Development and Validation for Aircraft Fuselage Structures. NASA Technical Reports Server (NASA). 356–362. 12 indexed citations

6.

Ralph, D., et al.. (1999). Vibro-Acoustics Modal Testing at NASA Langley Research Center. NASA Technical Reports Server (NASA). 8 indexed citations

7.

Lewis, Adrian S. & D. Ralph. (1996). A nonlinear duality result equivalent to the Clarke-Ledyaev mean value inequality. Nonlinear Analysis. 26(2). 343–350. 6 indexed citations

8.

Craven, B. D., D. Ralph, & B. M. Glover. (1995). Small convex-valued subdifferentials in mathematical programming. Optimization. 32(1). 1–21. 17 indexed citations

9.

Ralph, D.. (1994). A chain rule for nonsmooth composite functions via minimisation. Bulletin of the Australian Mathematical Society. 49(1). 129–137. 6 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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