# HG changeset patch # User Kevin Walker # Date 1290617488 25200 # Node ID 6b6c565bd76eb0a87582e2259f6507f8b6d7db05 # Parent 1cfa95e6b8bbef692efce40815f90185a0982bf1 move Lurie-comparison paragraph to n-cat section diff -r 1cfa95e6b8bb -r 6b6c565bd76e pnas/pnas.tex --- a/pnas/pnas.tex Tue Nov 23 09:28:45 2010 -0800 +++ b/pnas/pnas.tex Wed Nov 24 09:51:28 2010 -0700 @@ -237,15 +237,6 @@ yields a higher categorical and higher dimensional generalization of Deligne's conjecture on Hochschild cochains and the little 2-disks operad. -\nn{needs revision} -Of course, there are currently many interesting alternative notions of $n$-category and of TQFT. -We note that our $n$-categories are both more and less general -than the ``fully dualizable" ones which play a prominent role in \cite{0905.0465}. -They are more general in that we make no duality assumptions in the top dimension $n{+}1$. -They are less general in that we impose stronger duality requirements in dimensions 0 through $n$. -Thus our $n$-categories correspond to $(n{+}\epsilon)$-dimensional {\it unoriented} or {\it oriented} TQFTs, while -Lurie's (fully dualizable) $n$-categories correspond to $(n{+}1)$-dimensional {\it framed} TQFTs. - At several points we only sketch an argument briefly; full details can be found in \cite{1009.5025}. In this paper we attempt to give a clear view of the big picture without getting bogged down in technical details. @@ -272,6 +263,14 @@ %We separate these two tasks, and address only the first, which becomes much easier when not burdened by the second. %More specifically, life is easier when working with maximal, rather than minimal, collections of axioms.} +Of course, there are currently many interesting alternative notions of $n$-category. +We note that our $n$-categories are both more and less general +than the ``fully dualizable" ones which play a prominent role in \cite{0905.0465}. +They are more general in that we make no duality assumptions in the top dimension $n{+}1$. +They are less general in that we impose stronger duality requirements in dimensions 0 through $n$. +Thus our $n$-categories correspond to $(n{+}\epsilon)$-dimensional {\it unoriented} or {\it oriented} TQFTs, while +Lurie's (fully dualizable) $n$-categories correspond to $(n{+}1)$-dimensional {\it framed} TQFTs. + We will define two variations simultaneously, as all but one of the axioms are identical in the two cases. These variations are ``plain $n$-categories", where homeomorphisms fixing the boundary act trivially on the sets associated to $n$-balls