During my master's, I had done a project which yielded some interesting results that I and my supervisor started to write up. I moved to a different university (and country) for my PhD and kept contact with the professor. He suggested some edits and I did them. But of late, he is neither replying to my emails nor proceeding with the article, although he promised that we should be able to submit the article quite soon.
I would completely understand if he doesn't want to go forward with the article, but I am confused. I even suggested indirectly that we not go forward and just put it on Arxiv.
