2 papers
math-ph2001
Classifying Spinor Structures
Scott Morrison
I begin by explaining how Riemannian geometry can be understood in terms of principal fibre bundles and connections thereon. I then introduce and motivate the definition of a spino…
math.DG2001
An Introduction to Pull-backs of Bundles and Homotopy Invariance
Scott Morrison
We define the pull-back of a smooth principal fibre bundle, and show that it has a natural principal fibre bundle structure. Next, we analyse the relationship between pull-backs by…