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Everything about Dirac operator

First-order differential linear operator on spinor bundle, whose square is the Laplacian

In mathematics and in quantum mechanics, a Dirac operator is a first-order differential operator that is a formal square root, or half-iterate, of a second-order differential operator such as a Laplacian. It was introduced in 1847 by William Hamilton and in 1928 by Paul Dirac. The question which concerned Dirac was to factorise formally the Laplace operator of the Minkowski space, to get an equation for the wave function which would be compatible with special relativity. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Dirac operatorA 5-minute orientation
  2. Skim a recent paper: Diffusion-driven instability of topological signals coupled by the Dirac operatorInfluential work since 2022
  3. Pick up a classic book: Dirac operators in representation theoryThe most-reprinted book on the subject
  4. Read the landmark paper: Dirac Operator and the Discrete SeriesCited 184 times
  5. Go sideways: Laplace operators in differential geometryA closely related topic
  6. Go sideways: Weitzenböck identityA closely related topic

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