Some properties of biwave maps

► The formulation of an equivariant biwave map from a Minkowski space into a rotationally symmetric manifold N is obtained. ► The above formulation of an equivariant biwave map is applied to N=Rn−{0}, Sn−{±p} and Hn−{p}. ► The biwave field of an inclusion from a Minkowski space into a warped product manifold is calculated. ► The relationship of the divergence of the stress bienergy tensor of a biwave map and the biwave field is computed. ► It is shown that under circumstance a biwave map from a compact domain in a Minkowski space is a wave map.