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An incorrect proof has felled a math paper. There’s not too much to say in a straightforward situation like this one, which we’ve seen before — the result of honest errors, not any malfeasance. Here’s the abstract for “Spectral mapping theorem for generalized Kato spectrum:” In this paper, we give an affirmative answer to Mbekhta’s conjecture (Mbekhta, […]
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The wind sculpts the dunes of the Sahara Desert in the Erg Bourarhet, Algeria, 1973. Photograph by Thomas J. Abercrombie, National Geographic Creative
Springer has retracted two articles about groundwater in Algeria from its journal Environmental Earth Sciences – one was sent down the well by “copyright issues that cannot be resolved,” and the other by a duplicate publication two years prior. The first article of the two, “Principal component, chemical, bacteriological, and isotopic analyses of Oued-Souf groundwaters,” was published […]
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