On E. Witten on Small Instantons on Heterotic String – Seminar class at LMU for Dr. Gray

Digging through old files, I figured I put up the notes I wrote up for this seminar talk because I had been meaning to do so.

YouTube video: On E. Witten on Small Instantons on Heterotic String – Seminar class at LMU for Dr. Gray

And my notes in pdf and LaTeX form, because video quality was the best that I could muster at the time (blackboard isn’t clear, but the audio was pretty good):

Witten_Small_Instantons_Gray.pdf on Google Drive

Witten_Small_Instantons_Gray.tex LaTeX file on Google Drive

I would have to review my notes and review some concepts if I was to give this talk again. But I would say that the (general) idea is that at a conical singularity of a SO(32) string on a hyper-kohler manifold, then there is a instanton SU(N) charge. So there’s more to a singularity than meets the eye (rimshot).

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