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- W3193277788 abstract "The fact that every oriented 4-manifold admits spin$^c$ structures was proved long ago by Whitney, Hirzebruch, and Hopf. However, the usual proof is indirect, and can seem rather opaque. This article gives a new proof using twistor spaces that is conceptually more direct. After using these ideas to clarify various fundamental facts concerning 4-dimensional geometry, we go on to explain how related ideas can be used to understand both spin and spin$^c$ structures in any dimension." @default.
- W3193277788 created "2021-08-16" @default.
- W3193277788 creator A5074780350 @default.
- W3193277788 date "2021-08-03" @default.
- W3193277788 modified "2023-09-27" @default.
- W3193277788 title "Twistors, Self-Duality, and Spin$^c$ Structures" @default.
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- W3193277788 hasPublicationYear "2021" @default.
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