Does anyone know why Section 2.10 Strömberg Wavelet of the 2018 book Wavelet: Analysis and Methods seems to be an almost exact copy of the 2016 Wikipedia article of the same name?
There are some small differences:
- The book section is missing citations while the Wikipedia article cites Strömberg (1983) and Wojtaszczyk (1997).
- The book at one point appears to mis-typeset $P^{(m)}(V)$ as $P(m)(V)$
The Wikipedia article does not cite the book (which would be difficult anyway given the 2016 versus 2018 timestamps). The book meanwhile claims "All rights reserved.", and a Google Book search of the book for "Wikipedia" returns "No results found in this book for Wikipedia".
I have never heard of this book's publisher and, searching for the authors, couldn't find a university page or anything (as a matter of fact, this and one other book seem to be their only meaningful trace on the internet - and I believe their names are sufficiently rare to where one should be able to stumble upon at least some mention of their work). Unless I'm terribly mistaken, all this suggests it may indeed be a predatory publication, trying to earn a quick buck on a poorly produced textbook. This is only a conjecture, however, and should be treated as such. Whether there is any point in pursuing this matter further depends entirely on your own disposition and availability of resources. In either case, emailing the publisher about it should be a good first step.