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We study hydrodynamic oscillations of a cylindrical Bose gas above theBose-Einstein transition temperature using the hydrodynamic equations derivedby Griffin, Wu and Stringari. This extends recent studies of a cylindricalBose-condensed gas at T=0. Explicit normal mode solutions are obtained fornon-propagating solutions. In the classical limit, the sound velocity is shownto be the same as a uniform classical gas. We use a variational formulation ofthe hydrodynamic equations to discuss the propagating modes in the degenerateBose-gas limit and show there is little difference from the classical results.Comment: 16 pages, revtex, 2 postscript figures, submitted to Physical Review

Hydrodynamic modes and pulse propagation in a cylindrical Bose gas above the Bose-Einstein transition