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  • Isotropic variogram matrix functions on spheres 

    Du, Juan; Ma, Chunsheng; Li, Yang (SPRINGER, 2013-04)
    This paper is concerned with vector random fields on spheres with second-order increments, which are intrinsically stationary and mean square continuous and have isotropic variogram matrix functions. A characterization of ...
  • Stationary and isotropic vector random fields on spheres 

    Ma, Chunsheng (Springer, 2012-08)
    This paper presents the characterization of the covariance matrix function of a Gaussian or second-order elliptically contoured vector random field on the sphere which is stationary, isotropic, and mean square continuous. ...