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The purpose of the corona workshop was toconsider the corona problem in both one and several complex variables, both in the context of function theory and harmonic analysis as well as the context of operator theory and functional analysis. It was held in June 2012 at the Fields Institute in Toronto, and attended by about fifty mathematicians. This volume validates and commemorates the workshop, and records some of the ideas that were developed within.

The corona problem dates back to 1941. It has exerted a powerful influence over mathematical analysis for nearly 75 years. There is...

Recent developments in diverse areas of mathematics suggest the study of a certain class of extensions of C*-algebras. Here, Ronald Douglas uses methods from homological algebra to study this collection of extensions. He first shows that equivalence classes of the extensions of the compact metrizable space X form an abelian group Ext (X). Second, he shows that the correspondence X ⃗ Ext (X) defines a homotopy invariant covariant functor which can then be used to define a generalized homology theory. Establishing the periodicity of order two, the author shows, following Atiyah, that a...

Youth, Heroism and War Propaganda explores how the young maritime hero became a major new figure of war propaganda in the second half of the long 18th century. At that time, Britain was searching for a new national identity, and the young maritime hero and his exploits conjured images of vigour, energy, enthusiasm and courage. Adopted as centrepiece in a campaign of concerted war propaganda leading up to the Battle of Trafalgar, the young hero came to represent much that was quintessentially British at this major turning point in the nation's history.

By drawing on a wide...

During his two terms as the 40th President of the United States, Ronald Reagan kept a daily diary in which he recorded, by hand, his innermost thoughts and observations on the extraordinary, the historic, and the routine day-to-day occurrences of his presidency. Now, nearly two decades after he left office, this remarkable record--the only daily Presidential diary in American history--is available for the first time.

Edited by historian Douglas Brinkley, The Reagan Diaries provides a striking insight into one of this nation's most important presidencies and sheds new light...