A visit from Bob Rosebrugh

Nicoletta and I have Bob Rosebrugh visiting for two weeks. We are getting some nice work done (I will report later) in which the Yang-Baxter equations play a part.
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The richness of Italy

I first came to Italy in 1980 (not quite true: I had been to Naples briefly as a boy, sailing to England from Australia on the Orient Line ship Otranto). I bought a Guide Michelin dated 1974. I have just been looking at it because we made a car trip to Salento, the heel of Italy.
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