Rapports
23/11/07 Meeting in honour of Christian Houzel, IHP, Paris: FW Lawvere: Toposes in geometry & analysis / 02/12/07 Boston colloquium meeting on trends in the mathematical representation of space: Lou Crane: What does quantum gravity tell us about the nature of space time / Gonzalo Reyes: An axiomatic presentation of Einstein's vaccum field equations, from the viewpoint of synthetic differential geometry / 01/12/07: Pierre Cartier: On living in a contradictory world; categories versus sets / Shawn Westmoreland: Twin paradox without acceleration / Colin McLArty: Generality versus unity in geometry: Some Grothendieck themes / General round table discussion incl. P Cartier, FW Lawvere, L Crane, J Stachel, C McLarty, JP Marquis & others / FW Lawvere: Euler, Maxwell, Grothendieck & the nature of space / Jean-Pierre Marquis: From Klein to Kan; the algebra of space and the space of algebra (incomplete)