Laws of Form and Bigraphs

Alerted by a post of sigfpe, I learnt about George Spencer-Brown’s 1972 book Laws of Form.  Reading Louis Kauffman’s account of the theory, I was struck by the similarity to Robin Milner‘s theory of bigraphs (see here for papers). From a talk I heard him give a few years ago, I believe that Milner’s theory was originally intended as a rigorous category-theoretic account of hyperlinks in computer networks.  Has anyone explored the connections between these two mathematical theories?

Data visualization software

Statisticians among us may be interested in Gapminder, free data visualization software from Sweden developed originally to assist in communicating information about global development. The software makes use of web animation tools such as Flash.

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Wanted: game theorists

The University of Liverpool (UK) has a vacancy for a post-doc researcher and for a PhD student, both in automated mechanism design. The expertise we are looking for includes game theory, mechanism design and auction theory, mathematical economics, and computational versions of same.  These posts are part of a major UK research project on market-based control of complex computational systems.

Details here and here.