From the start of my PhD (applied mathematics), I had many disagreements with my supervisor on the research topic (no funding) she gave me. This made our relationship bad and collaboration unpleasant. In the last year before my thesis defense, I asked for a separation, but she was against that. Then, I stopped doing research with her earlier than the expected time, and started writing my PhD thesis, which was approved by the department. This annoyed my supervisor apparently, and now she is very slow in giving me feedback on my PhD thesis.
After submitting my thesis for defense, I extracted a paper out of the thesis, co-authored with my supervisor. She has agreed to revise it and then to submit it to a journal, however, she has held the paper for more than one month, without any comment. I write emails to her several times for appointments, but she does not reply. I have a feeling that she did it on purpose as she wants to make my academia life after PhD difficult.
Is it an ethical issue to hold a student’s paper like this? I need the paper to apply for post-doc. In such a case, if the student insists to submit a paper to a journal, is there any ethical problem?