Addendum to: ``Factoring skew polynomials over Hamilton's quaternion
algebra and the complex numbers'' [J. Algebra 427 (2015), 20-29]
Let D be the quaternion division algebra over a real closed field F.
Then every non-constant polynomial in a skew-polynomial ring decomposes into a
product of linear factors, and thus has a zero. This improves Theorem 2 in the
original paper.
S. Pumpluen < susanne.pumpluen@nottingham.ac.uk >