I have applied to PhD programs in US in the area of TCS for FALL 13. I have two unpublished work in the area of theory which was part of my master thesis. I have other published work but they are not in theory. Also it appears that these univ have started contacting their successful candidates.
Recently one of the unpublished work has been upload on arxiv however the other work is still not there. I can't put it on arxiv as I am not the sole author. Should I mail these two papers as pdf attachments to my potential list of advisors? (3-6 per univ) What should be done? I have mentioned the titles of my work and their contributions in my cv : e.g. this paper improves on paper X and gives 3 approx algorithm using technique Y. However why should anyone believe me if it is unpublished. Or how to gauge the amount of research done/involved in that work.