Origin of higher Schwarzians

Jan 19, 2024
8 pages
Published in:
  • Phys.Rev.D 109 (2024) 6, 065029
  • Published: Mar 15, 2024
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Abstract: (APS)
In this paper we analyze higher Schwarzians and show that they are closely related to the nonlinear realization of the Virasoro algebra. The Goldstone fields of such a realization provide a new set of SL(2,R) invariant higher Schwarzians that are deeply related to those of Aharonov [Duke Math. J. 36, 599 (1969)], Tamanoi [Math. Ann. 305, 127 (1996)], and Bonora-Matone [Nucl. Phys. B327, 415 (1989); Int. J. Mod. Phys. A 10, 289 (1995); ]. A minor change of the coset space parametrization leads to a new set of SL(2,R) noninvariant higher Schwarzians now related to the Schippers [Proc. Am. Math. Soc. 128, 3241 (2000)] and Bertilsson [Ark. Mat. 36, 255 (1998)] Schwarzians.
Note:
  • 8 pages; minor corrections, accepted in Phys Rev D
  • representation: nonlinear
  • algebra: Virasoro
  • invariance: SL(2,R)
  • coset space
  • parametrization