Steve Tobias
stevetobias.bsky.social
Steve Tobias
@stevetobias.bsky.social
Mathematician, Fluids
Credit where it is due...this post manages both to diss Liverpool's achievements and have some interesting mathematics in it.
As Liverpool win the Premier League for the second time, they complete the opening of a quite remarkable sequence, 33 years in the making.

#Fibonacci
April 28, 2025 at 2:31 PM
I went to see the amazingly talented Edith Pageaud play in Leeds last night. I was blown away both by her technique (which is awesome) and her musicality. Absolutely beautiful music. If you get a chance to see her - take it.
www.youtube.com/watch?v=5Fq0...
Oblivion - Astor Piazzolla (arr. Dyens) Edith Pageaud
YouTube video by Edith Pageaud
www.youtube.com
March 1, 2025 at 10:23 AM
It is a great honour to take up the Tait Chair of Mathematical Physics at @edinburgh-uni.bsky.social. I will arrive in June 2025.

www.ph.ed.ac.uk/news/2025/ch...
Championing Mathematical Physics in Edinburgh
Professor Steve Tobias appointed Tait Chair of Mathematical Physics.
www.ph.ed.ac.uk
February 4, 2025 at 8:39 AM
It's taken a while! We finally managed to show how to do Generalised Direct Statistical Simulation. Paper in Journal of Fluid Mechanics
doi.org/10.1017/jfm....
Direct statistical simulation using generalised cumulant expansions | Journal of Fluid Mechanics | Cambridge Core
Direct statistical simulation using generalised cumulant expansions - Volume 1001
doi.org
January 7, 2025 at 7:55 AM
Stretch-twist-fold is an important concept in chaos theory - and in MHD dynamos. A dynamo can only be a "fast" dynamo if there is Lagrangian chaos in the flow, so that stretching can overcome diffusion in the singular limit of small diffusion.
In today's lecture in my nonlinear dynamics and chaos course, I tried to give intuition for where chaos comes from. It's caused by repeated stretching and folding of phase space.
December 10, 2024 at 8:22 AM
Great to see that @lifd.bsky.social has arrived at bluesky! Truly the platform has now made it.
November 28, 2024 at 3:07 PM
Today I shall be speaking at the APS DFD Memorial Meeting for Keith Julien in Salt Lake City. Keith was a brilliant mathematician and great friend who was taken from us way too soon. We miss him.
November 23, 2024 at 12:59 PM
Reposted by Steve Tobias
My six favourite European Mr Men character names...

6. Mr Muddle in Spain = Don Confuso
5. Mr Topsy-Turvy in Germany = Herr Kuddelmuddel
4. Mr Bounce in France = Monsieur Bing
3. Mr Dizzy in Portugal = Senhor Bobo
2. Mr Greedy in Sweden = Gubben Glufs Glufs
1. Mr Bump in Norway = Herr Dumpidump
November 18, 2024 at 12:04 PM