Uniformly resolvable $(C_4, K_{1, 3})$-designs of order v and.

In this paper we consider the uniformly resolvable decompositions of the complete graph $lambda K_v$ into subgraphs where each resolution class contains only blocks isomorphic to the same graph. We consider the cases in which all the resolution classes are either $C_4$ or $K_{1,3}$. We prove that this type of system does not exist for $lambda$ odd and determine completely the spectrum for $lambda=2$.