Openness of uniformly valuative stability on the K\"ahler cone of projective manifolds

Assume that a projective variety is uniformly valuatively stable with respect to a polarization. We show that the projective variety is uniformly valuatively stable with respect to any polarization sufficiently close to the original polarization. The definition of uniformly valuatively stability in this paper is stronger than that given by Dervan and Legendre in \cite{D-L20}. We also define the valuative stability for the transcendental K"ahler classes. Our openness result can be extended to the K"ahler cone of projective manifolds.