Categories in Algebra, Geometry and Mathematical Physics
Conference in honour of Ross Street's sixtieth birthday
July 11-16 2005, Macquarie University, Sydney
Tue, 12 July: 11:20 - 12:00
Swiss cheese as the categorical ether
We show that the Swiss-cheese operad may serve as the ``$n$-categorical ether'', bookkeeping the composition structure for morphisms of different levels.