Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A number associated to each topological space and each dimension, giving an approximate number of holes of that dimension in that space.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

After Enrico Betti, Italian mathematician.

Examples

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Comments

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  • You Betti your infinity (Groucho Marx?)

    July 17, 2013