Here is a photo that
Ron took on July 5, 2020, the day before the last day.
It was a beautiful morning and the photo was the view of kayaks through the deck.
On that day, Ron talked over the phone with Steve Butler and Persi Diaconis about their work in progress concerning certain random walks on Zp. Ron pointed out
that the behavior was very different for p
1 (mod 4) versus p
3 (mod 4) and he suggested various ways to get computational data.
Later in the day Ron exchanged email with Sam Spiro about their joint paper
(with Persi and others on card guessing) which is near completion. He wrote email to Judith Ng including the photo of kayaks
and a photo of his wife
Fan in the kitchen looking back at him through
the Google Nest Cam.
On the wall in Ron's office, he hung a poster of squares arranged in 90 lines each consisting of 52 little squares.
Later on he modified it so it contains 100 lines.
(He sometimes joked that his grandma lived to 99 and then hit by a truck.) The rule is to fill one square each week.
Thus, one can see how many squares are left and how finite and precious life is.
He only used
but every square was gloriously filled.
Here are some recent links about Ron:
- AMS, The Latest July 7, 2020.
UCSD press release.
- Ronald Graham and the Magic of Math, written by Tom Leighton July 8, 2020.
- Ron Graham dazzled admirers with Math and Juggling feats, Wall Street Journal.
- Ronald L. Graham, Who Unlocked the Magic of Numbers, Dies at 84, New York Times.
- Ron Graham Obituary, The Guardian.
- Obituary: Ronald Lewis Graham, by Jeffrey C. Lagarias, SIAM news.
An old video about Ron in the days of Bell Labs, recently digitalized.
- Ron's First Day in Heaven, a poem by Jay Cummings.
- A memorial tribute to Ron, organized at FSAC meeting, July 20, 2020.
- Something New Everyday: The Math and Magic of Ron Graham, a film by George Csicsery (20 min).
Ron's card trick in Magical Mathematics.
- Ron Graham Archives
, maintained by Steve Butler, consisting of the bulk of Ron's mathematical library including books, notes, journals, letters,
unfinished folders, and various other objects (e.g. juggling balls, Rubik's cubes, card decks Penrose tiles, and mathematical sculptures).