This article was nominated for deletion on 23 April 2010 (UTC). The result of the discussion was no consensus.

Find sources: Google (books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL

This article is rated C-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Mathematics Mid‑priority This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics articles Mid This article has been rated as Mid-priority on the project's priority scale.

His Evanston lectures may be of interest here. Can anyone find it online? Tkuvho (talk) 11:44, 11 May 2010 (UTC)[reply]