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Donaldson-Thomas invariant

noun

Etymology

Introduced in 1998 by Simon Donaldson and Richard Thomas.

Definitions

  1. Given a compact moduli space of sheaves on a Calabi-Yau threefold, its Donaldson-Thomas…

    Given a compact moduli space of sheaves on a Calabi-Yau threefold, its Donaldson-Thomas invariant is the virtual number of its points, i.e., the integral of the cohomology class 1 against the virtual fundamental class.

The neighborhood

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sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA