Last month, we brought you news of two retractions in math journals for duplicate publication and apparent guest authorship. Last week, we learned that the lead author of one of those papers, Amir Mahmood, has retracted another paper, this one in Nonlinear Analysis: Real World Applications.
According to the retraction notice, the paper was an “accidental duplication of an article that has already been published” in Communications in Nonlinear Science and Numerical Simulation.
The papers share two authors: Mahmood, of the department of mathematics at COMSATS Institute of Information Technology and the Abdus Salam School of Mathematical Sciences of GC University, both in Lahore, Pakistan; and N.A. Khan, of the University of Karachi’s math department. Khan was also on one of the two papers we wrote about last month, but not the one Mahmood co-authored. Those two papers’ shared author was M. Jamil.
Mahmood told Retraction Watch by email that the papers are not duplicates, and that the journal editors could not explain to him why they were.
Retraction Watch readers can be the judge. The abstract of the retracted paper: Continue reading Another math paper retracted because of duplication