Two years ago, I collaborated* (briefly) with a professor (whom I will call Professor Jim) on some research in mathematics. At the time, I was a PhD student and Prof. Jim was on my dissertation committee. I now work full time outside of academia and Professor Jim is looking for a new position. (Prof. Jim was denied tenure last year).
Because Prof. Jim is looking for a new position, he is interviewing for numerous positions around the United States. As part of these interviews, Prof. Jim gives a seminar talk on research. The only issue is that, instead of presenting research he performed himself, he is presenting research from my dissertation as if it was his own. No attribution is given to me on his slides (which are a direct copy of the slides I presented at my dissertation defense).** I feel that this is a clear instance of plagiarism.
My question is as follows: Should I contact the universities where Prof. Jim presented this research? Professor Jim has ignored my emails on the matter for three months now.
*I use the term collaborator very loosely here. Prof. Jim provided a data set for the data analysis. This was not a data set he himself had collected. Rather, it was a data set from the National Institute of Health (NIH) that he had been granted access to. Prof. Jim also attended (while nodding off to sleep at times) some of the early meetings where I presented my thoughts. He gave a few points of feedback and wedged his way onto the associated unpublished paper as an author. (Easy to do when you can leverage your authority over graduate students). I would not include him in a million years if I was in my current, unleveraged, position. The only published source of this research is my dissertation. He does not cite my dissertation in his presentation. In at least one seminar, he made no mention of either me or another colleague who actually did substantive work. (This is according to a contact I have at said university).
**Many universities publicly announce seminars on their website. Professor Jim has a rather unique real name and Google finds him relatively easily. I have traced several instances of Professor Jim presenting at seminars. Departments are usually happy to send you materials from old seminars if you just email and ask.