Certainly, EY would have to serve as a coauthor if the published article was closely based on the original, and of course he would have to agree to that.
But I think that coauthorship is a less likely scenario, and the first idea I mentioned—use of certain key ideas with citation -- is a more likely one.
Citing an existing write-up in your own research paper adding something new to the TDT, or in an explicitly educational/expository non-research paper is OK. Rewriting existing ideas as your own research paper is not.
Certainly, EY would have to serve as a coauthor if the published article was closely based on the original, and of course he would have to agree to that.
But I think that coauthorship is a less likely scenario, and the first idea I mentioned—use of certain key ideas with citation -- is a more likely one.
Citing an existing write-up in your own research paper adding something new to the TDT, or in an explicitly educational/expository non-research paper is OK. Rewriting existing ideas as your own research paper is not.
Of course. My original comment was meant to convey, through the words “citations,” and “coauthor,” that proper credit must always be given.