Torsion in coinvariants of certain Cantor minimal Z2-systems
Hiroki Matui
Abstract
Let G be a finite abelian group. We will consider a skew product extension of a product of two Cantor minimal Z-systems associated with a G-valued cocycle. When G is non-cyclic and the cocycle is non-degenerate, it will be shown that the skew product system has torsion in its coinvariants.
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