Research output per year
Research output per year
Personal profile
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
Education/Academic qualification
MSc, PhD
Accepting PhD Students
- Accepting PhD Students
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Dive into the research topics where Donal O'Regan is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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A note on collectively coincidence theory for lower semicontinuous maps
O'Regan, D., Aug 2025, In: Nonlinear Analysis: Real World Applications. 84, 104272.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
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Best Ulam constants for damped linear oscillators with variable coefficients
Anderson, D. R., Onitsuka, M. & O'Regan, D., 15 Mar 2025, In: Journal of Mathematical Analysis and Applications. 543, 2P1, 128908.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
Open Access -
Coincidence theory for lower semicontinuous type maps with decomposable values
O’Regan, D., 2025, (Accepted/In press) In: Aequationes Mathematicae.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
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EXISTENCE OF NONTRIVIAL SOLUTIONS FOR AN INTEGRAL BOUNDARY VALUE PROBLEM INVOLVING THE CAPUTO-FABRIZIO-TYPE FRACTIONAL DERIVATIVE
Xue, L., Sun, Q., O’regan, D. & Xu, J., 2025, In: Journal of Applied Analysis and Computation. 15, 3, p. 1786-1802 17 p.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
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Fixed point theory in RWC–Banach algebras
Banaś, J., Krichen, B., Mefteh, B. & O’regan, D., 9 Jan 2025, In: Nonlinear Analysis: Modelling and Control. 30, 1, p. 108-118 11 p.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
Open Access