Professor Emlyn Glyn Vaughan Evans

A tribute to professor Glyn Humphreys

On January 14th we were deeply saddened to hear about the sudden death of Professor Glyn Humphreys. With this departure, the field of cognitive neuropsychology lost not only one of its most prominent and productive researchers, but also one of the most influential and beloved scientific mentors. Glyn Humphreys was born on 28 December 1954 in Ormskirk, Lancashire. He obtained a Bachelor's degree...

Von Neumann Algebras . Vaughan

The purpose of these notes is to provide a rapid introduction to von Neumann algebras which gets to the examples and active topics with a minimum of technical baggage. In this sense it is opposite in spirit from the treatises of philosophy is to lavish attention on a few key results and examples, and we prefer to make simplifying assumptions rather than go for the most general case. Thus we do ...

Some Moment calculations . Vaughan

Prof. Glyn Humphreys' Obituary

Almost all of his students were older than him! Through intellect and hard work, he made rapid academic progress, and was appointed as Professor of Psychology in 1988. While at Birkbeck, he was appointed the Ronald Tress Prize for advancements in his field, the first of many such awards. During his time in Birkbeck an equally important step in his life was made by meeting his wife Jane. Both of...

On Vaughan Pratt's crossword problem

Vaughan Pratt has introduced objects consisting of pairs (A, W ) where A is a set and W a set of subsets of A, such that (i) W contains ∅ and A, (ii) if C is a subset of A×A such that for every a ∈ A, both {b | (a, b) ∈ C} and {b | (b, a) ∈ C} are members of W (a “crossword” with all “rows” and “columns” in W ), then {b | (b, b) ∈ C} (the “diagonal word”) also belongs to W, and (iii) for all di...