I would like to know if there has been any progress recently toward giving the Feynman integral a rigorous definition. I heard that Richard Borcherds is working on giving quantum field theory a rigorous foundation, but I am not familiar with his work. Perhaps someone here on the M.S.E. who is familiar with what he does can give some insight?
Tell me more
×
Mathematics Stack Exchange is a question and answer site for
people studying math at any level and professionals in related fields. It's 100% free, no registration required.