"""
powers = tuple( self**k for k in range(self.degree()) )
- A = self.parent().subalgebra(powers, associative=True, **kwargs)
+ A = self.parent().subalgebra(powers,
+ associative=True,
+ check_field=False,
+ check_axioms=False,
+ **kwargs)
A.one.set_cache(A(self.parent().one()))
return A