Hello, I'm currently attending the University of Calgary in the Double Honours program in Astrophysics and Applied Mathematics. I attended the ISSYP summer program at the Perimeter Institute for Theoretical Physics in the summer and wrote a collaborative paper that derived a gauge theory describing the dynamics of particles in n-dimensions, (if you are interested I can e-mail you the paper! :D) I was under the impression that it is normally impossible to get a research position during the summer at a university (working under a professor either paid or unpaid) after the first year of school because of how little you know; is this true? I would love to work on some sort of research and hopefully write a second paper this summer! So, if anyone has any advice or any tips for how to get a research opportunity after only completing one year of an undergraduate that would be great. I'm not sure if I should just e-mail a professor and ask or if that is rude/uncalled for. If anyone knows the academic politics for how this works that would be great! Thanks, -Sam Reid P.S. If anyone knows how to do partial differentiation with respect to Einstein notation and can point me in the right direction for how to do it, that would be great... I don't understand what delta functions are when you take the partial derivative of a vector with respect to a different index. EDIT: I made a topic asking this here: https://www.physicsforums.com/showthread.php?p=3508356#post3508356 if you can help answer that don't answer in this topic.