We construct a new supermatrix model which represents a manifestly
supersymmetric noncommutative regularisation of the UOSp(2∣1)
supersymmetric Schwinger model on the supersphere. Our construction is much
simpler than those already existing in the literature and it was found by using
Poisson geometry in a substantial way.Comment: 29 pages, we enlarge Section 3.3 by adding a comparison with older
results on the subject of the component expansion