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Researcher · Ollscoil na Gaillimhe – University of Galway · Ireland

Donal O’Regan

Donal O’Regan publishes mostly in Applied Mathematics, Numerical Analysis and Computational Theory and Mathematics, on topics such as Nonlinear Differential Equations Analysis, Differential Equations and Numerical Methods and Fixed Point Theorems Analysis.

ORCID 0000-0002-4096-1469 OpenAlex
World rank
#582,626
of 1,633,909 ranked researchers
Rank in Ireland
#1,802
of 4,477
Works
375
Citations
894
Citations per work
2.4

What does Donal O’Regan research?

Applied Mathematics: 29.6%Numerical Analysis: 12.8%Computational Theory and Mathematics: 12.5%Geometry and Topology: 11.5%other fields: 33.6%30%top field
Applied Mathematics29.6%Numerical Analysis12.8%Computational Theory and Mathematics12.5%Geometry and Topology11.5%other fields33.6%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Applied Mathematics30% of their works
  2. 2Numerical Analysis13% of their works
  3. 3Computational Theory and Mathematics12% of their works
  4. 4Geometry and Topology12% of their works
  5. 5Modeling and Simulation7% of their works
  6. 6Mathematical Physics7% of their works

Research topics

Which keywords describe Donal O’Regan's research?

The keywords of their largest research topics: Boundary Value Problems, Controllability, Fractional Differential Equations, Semilinear Differential Equations, Numerical Methods, Singular Perturbation, Fixed Point Theorems and Metric Spaces.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 18 words, with their numbers
  1. Boundary Value Problems1262 topics
  2. Controllability1262 topics
  3. Fractional Differential Equations1031 topic
  4. Semilinear Differential Equations1031 topic
  5. Numerical Methods441 topic
  6. Singular Perturbation441 topic
  7. Fixed Point Theorems401 topic
  8. Metric Spaces401 topic
  9. Anomalous Diffusion341 topic
  10. Fractional Calculus341 topic
  11. Iterative Algorithms321 topic
  12. Nonlinear Operators321 topic
  13. Boundary Control231 topic
  14. Distributed Parameter Systems231 topic
  15. Nonlocal231 topic
  16. Partial Differential Equations231 topic
  17. Heterogeneous211 topic
  18. Multiscale Methods211 topic

Where does Donal O’Regan work?

Donal O’Regan's main affiliation in the publication record is Ollscoil na Gaillimhe – University of Galway, Ireland.

How many publications and citations does Donal O’Regan have?

Science Explorer counts 375 works and 894 citations for Donal O’Regan, ranking #582,626 of 1,633,909 researchers worldwide on the composite score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Papers, co-authors, who cited this work and researchers on the nearest topics are in the interactive view on the map. Is this your page? Request a correction or removal.