# HG changeset patch # User kevin@6e1638ff-ae45-0410-89bd-df963105f760 # Date 1255910083 0 # Node ID 0387384c9acd6676b193408bdcc07a5e70f7b9d2 # Parent 42ca1dee3441a1a65c65897e9c5fc4c700dfb7de ... diff -r 42ca1dee3441 -r 0387384c9acd text/comparing_defs.tex --- a/text/comparing_defs.tex Fri Oct 16 23:45:27 2009 +0000 +++ b/text/comparing_defs.tex Sun Oct 18 23:54:43 2009 +0000 @@ -97,6 +97,8 @@ Each approach has advantages and disadvantages. For better or worse, we choose bigons here.} +\nn{maybe we should do both rectangles and bigons?} + Define the $k$-morphisms $C^k$ of $C$ to be $\cC(B^k)_E$, where $B^k$ denotes the standard $k$-ball, which we also think of as the standard bihedron. Since we are thinking of $B^k$ as a bihedron, we have a standard decomposition of the $\bd B^k$ diff -r 42ca1dee3441 -r 0387384c9acd text/ncat.tex --- a/text/ncat.tex Fri Oct 16 23:45:27 2009 +0000 +++ b/text/ncat.tex Sun Oct 18 23:54:43 2009 +0000 @@ -242,6 +242,14 @@ For the moment, I'll assume that all flavors of the product are at our disposal, and I'll plan on revising the axioms later.} +\nn{current idea for fixing this: make the above axiom a ``preliminary version" +(as we have already done with some of the other axioms), then state the official +axiom for maps $\pi: E \to X$ which are almost fiber bundles. +one option is to restrict E to be a (full/half/not)-pinched product (up to homeo). +the alternative is to give some sort of local criterion for what's allowed. +state a gluing axiom for decomps $E = E'\cup E''$ where all three are of the correct type. +} + All of the axioms listed above hold for both ordinary $n$-categories and $A_\infty$ $n$-categories. The last axiom (below), concerning actions of homeomorphisms in the top dimension $n$, distinguishes the two cases.