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recent posts

  • Non-negativity of the eigenvalues of the Helmholtz equation
  • Green’s identities
  • A first look at the heat equation
  • Divergence of a curl, in pictures

Katharine Long, Professor of Mathematics, Texas Tech University

    Green’s identities

    25 October, 2026

    Derivation of Green’s first and second identities

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    ←A first look at the heat equation
    Non-negativity of the eigenvalues of the Helmholtz equation→

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