Spin waves in a two-dimensional p-wave superconductor:: Sr2RuO4

We study spin excitations in a two-dimensional p-wave superconductor with <(Delta)over right arrow> = (d) over cap((k) over cap(1) +/- i (k) over cap(2)) symmetry in the context of the newly discovered superconducting Sr2RuO4. The polarization and spectrum of spin-wave excitations are identified and their experimental consequences are discussed.