Andrew Jackson | Andrew Lloyd Webber | Andrew Carnegie | Andrew Johnson | Hurricane Andrew | Andrew Wyeth | Prince Andrew, Duke of York | Andrew Marvell | Andrew Sullivan | Andrew | Andrew W. Mellon Foundation | Andrew Lang | Andrew Loog Oldham | Andrew Davies | Andrew Cuomo | Saint Andrew | Andrew Rosindell | Andrew Motion | Andrew Weil | Andrew Stevens | Andrew Hill | Andrew Young | Andrew Lincoln | Andrew Kötting | Andrew Hamilton | Andrew Davies (writer) | Andrew W.K. | Andrew S. Tanenbaum | Andrew Parrott | Andrew Neil |
These structures first arose in Hitchin's program of characterizing geometrical structures via functionals of differential forms, a connection which formed the basis of Robbert Dijkgraaf, Sergei Gukov, Andrew Nietzke and Cumrun Vafa's 2004 proposal that topological string theories are special cases of a topological M-theory.