created a stub for *super Riemann surface*, just to record Witten’s latest

Now I am working on the next chapter of “geometry of physics”: *geometry of physics – supersymmetry*.

A fair bit of material is in place now, but much is missing still. This here is mainly in case you are watching the logs and are wondering. At this point, if anyone has any edits to suggest (typo fixing or more substantial) maybe best to not touch the file yet but to tell me about it. Thanks!

]]>The nLab presently gives me an application error when trying to open anything, so I’ll record some things here.

The following needs to be added to the References-section of the entry *M-theory super Lie algebra*:

]]>The M-theory super Lie algebra as first considered in

Jan-Willem van Holten, Antoine Van Proeyen,

$N=1$ supersymmetry algebras in $d=2,3,4 \,mod\, 8$J.Phys. A15, 3763 (1982).Paul Townsend,

p-Brane Democracy(arXiv:hep-th/9507048)Discussion of its formulation in terms of octonions (see also at

division algebra and supersymmetry) includes

- A. Anastasiou, L. Borsten, Michael Duff, L. J. Hughes, S. Nagy,
An octonionic formulation of the M-theory algebra(arXiv:1402.4649)