Monthly Archives: January 2022

Notes on the Twistor P1

I’ve just finished writing up some notes on what the twistor $P^1$ is and the various ways it shows up in mathematics.  The notes are available here, and may or may not get expanded at some point.  The rest of … Continue reading

Posted in Euclidean Twistor Unification, Langlands | 8 Comments

This Week’s Hype

For many years, editions here of This Week’s Hype were mainly devoted to bogus claims that someone had found a way to get a testable prediction out of string theory or other “evidence for string theory”. Recently there have been … Continue reading

Posted in This Week's Hype | 30 Comments

Yet More Math and Physics Items

Various items that may be of interest: Robbert Dijkgraaf was sworn in a few days ago as Minister of Education, Culture and Science in the Dutch government. Unclear who if anyone is director of the IAS at the moment, but … Continue reading

Posted in Uncategorized | 11 Comments

Igor and Grichka Bogdanoff 1949-2021/22

A few days ago I heard news from Paris of the death of Grichka Bogdanoff on Dec. 28, and this morning heard of the death yesterday of his twin brother Igor. There are many news stories online (e.g. here), and … Continue reading

Posted in Obituaries | 21 Comments