Harmonic functions, central quadrics, and twistor theory

نویسنده

  • Maciej Dunajski
چکیده

Solutions to the n-dimensional Laplace equation which are constant on a central quadric are found. The associated twistor description of the case n = 3 is used to characterise Gibbons-Hawking metrics with tri-holomorphic SL(2,C) symmetry.

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تاریخ انتشار 2008