Level quantization of the M5-brane Hopf–WZ/Page term with nonabelian worldvolume gauge fields

Establish a consistent level quantization of the M5-brane Hopf–Wess–Zumino/Page-charge term in the presence of nonabelian worldvolume higher gauge fields, in a way compatible with super-exceptional geometric supergravity and the super-exceptional embedding construction of the M5-brane.

Background

The authors indicate that their framework leads to a treatment of flux-quantized super-exceptional geometric supergravity compatible with the super-exceptional embedding of the M5-brane.

They specifically highlight the (level-)quantization of the M5-brane Hopf–WZ/Page term in the presence of nonabelian higher gauge fields as a longstanding and major open issue in M-theory.