On distance spectral radius of uniform hypergraphs with cycles

We study the effect of two types of graft transformations on the distance spectral radius of connected uniform hypergraphs containing at least one cycle, determine the unique k-uniform unicyclic hypergraphs of fixed size with minimum and second minimum distance spectral radii, respectively, and show the possible structure of the k-uniform unicyclic hypergraph(s) of fixed size with maximum distance spectral radius.