In 11-dimensional supergravity the brane electrically charged under the supergravity C-field is the M2-brane/membrane. The dual under electric-magnetic duality is the M5-brane. As a Green-Schwarz sigma-model: BLNPST 97 As a black brane solution of 11-dimensional supergravity the M5-brane is given (Gueven 92) by the spacetime with pseudo-Riemannian metric given by for and the distance in from the origin, and with field strength of the supergravity C-field being This is a -BPS state of...