Talk:Ore extension

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I found this page while browsing, and noticed a minor error: It was stated that an Ore extension was a normalizing extension. This is generally not true when delta is not equal to zero.

I also added a reference to the Goodearl-Wafield text, which has a detailed treatment of Ore extensions and is more up to date than McConnell-Robson or Rowen. ..Emanuel Acharon