Abstract In the Morel-Voevodsky motivic stable homotopy category of a quasi-compact quasi-separated scheme S , several candidates exist for a motivic spectrum representing hermitian K -theory. This note shows that the cellular absolute motivic spectrum constructed in 9 via the geometry of orthogonal and hyperbolic Grassmannians over S coincides with the motivic ring spectrum constructed in 4.
Kumar et al. (Thu,) studied this question.