  Magnetic behaviour of a mixed spin-1/2 and spin-1 Ising model on the diced
lattice is studied by the use of an exact star-triangle mapping transformation.
It is found that the uniaxial as well as biaxial single-ion anisotropy acting
on the spin-1 sites may potentially cause a reentrant transition with two
consecutive critical points. Contrary to this, the effect of
next-nearest-neighbour interaction between the spin-1/2 sites possibly leads to
a reentrant transition with three critical temperatures in addition to the one
with two critical points only. The shape of the total magnetization versus
temperature dependence is particularly investigated for the case of
ferrimagnetically ordered system.
