  We consider some properties of odd frequency triplet superconducting
condensates. In order to describe fluctuations we construct a supermatrix
sigma-model for the superconductor/ferromagnet or superconductor/normal-metal
structures. We show that an odd frequency triplet superconductor, when in
isolation or coupled to a normal metal, generally displays behaviour comparable
to a superconductor with the usual singlet pairings. However, for spin
dependent systems such as the superconductor/ferromagnet the two types of
superconductor have quite different behaviour. We discuss this difference by
considering transformations under which the sigma-model is invariant. Finally,
we calculate the low energy density of states in a ferromagnet coupled to a
singlet superconductor. If odd frequency triplet components are induced in the
ferromagnet the density of states will have a micro-gap similar to the
micro-gap found in normal metals coupled to a superconductor.
