I'm a first year PhD student. I never have any record of publication or conference paper before.
In my PhD, I worked as a coauthor for the post doctoral fellow's paper. My post doc work 24x7 sundays and Saturdays holidays but I am not like that. One sunday she asked to come for work, me and another phd student clearly refused it. After that she didn't ask us anything to do for the research. After the experiment work finished, she did all the analysis Without our knowledge. Then, supervisor and postdoc are presenting it in various conferences. For one conference, a day before the conference @5PM, they send me a presentation out of nowhere and they are going to present where my name was there but I am completely unaware of this and I didn't even reply to that email yet they presented it.
Also prof and postdoc are now presenting it in international conference but I was never informed about it. This time I never knew whether my name was there or not ? My fellow PhD student who is also another coauthor informed me about this. He was also mad at this time, because he asked them for dates to conduct his research but they told him that they are presenting that postdoc work in a conference on that dates So they are unavailable. We never knew about abstract submission and all the process happened.
Now, they are planning to submit the manuscript for a journal and informed us to approve the consent. I don't know much about academic conducts and rules. Can my collaborators present this work in conferences without my knowledge and consent?