Tootfinder

This was a really cool session, started with palaeoproxies, ice sheet dynamics, detoured into extreme value statistics and isostatic rebound and ended with concrete and steel and community engagement.
Just like every grant ever says it will..
#NCKF25
#NCKF25 symposium and the plenary is all about the #SeaLevelRise.
This is the downstream part of our job as glaciologists and it's important to understand how the projections will, can and should be used...

In a reply to Elon Musk's post of "you stole a non-profit", Sam Altman says OpenAI's structure is needed to create "what should be the largest non-profit ever" (Lauren Edmonds/Business Insider)
https://www.businessinsider.com/elon-musk-

Elon Musk and Sam Altman are still trading jabs over OpenAI
In response to Elon Musk, Sam Altman wrote on X that he "helped turn the thing you left for dead into what should be the largest non-profit ever."

For #TuneTuesday, we are invited to post music that lets loose our raging tempest inside: #RipAndTear
'Cause the joke that you laid in the bed that was me
And I'm not gonna fade as soon as you close your eyes
And you know it
And every time I scratch my nails
Down …

Graphs Excluding a Minor in Blowups of Treewidth 3 Graphs
Marc Distel
https://arxiv.org/abs/2510.09063 https://arxiv.org/pdf/2510.09063

Graphs Excluding a Minor in Blowups of Treewidth 3 Graphs
Alon, Seymour, and Thomas [J. Amer. Math. Soc. 1990] famously showed that every $n$-vertex $K_h$-minor-free graph has treewidth $O_h(\sqrt{n})$. Recently, Distel, Dujmović, Eppstein, Hickingbotham, Joret, Micek, Morin, Seweryn, and Wood [SIAM J. Discrete Math. 2024] refined this by showing that these graphs are $O_h(\sqrt{n})$-blowups of treewidth $4$ graphs. We improve this by showing that these graphs are $O_h(\sqrt{n})$-blowups of treewidth $3$ graphs.

Was doing some light photo roll cleanup and was reminded of finding this at the thrift store.
I don’t think I’ve ever seen anything that is so counter to “my aesthetic”, that I wanted so much.
Even now, at a remove of a couple months I regret not asking if it was actually for sale.

The Rabinowitz minimal periodic solution conjecture on partially convex reversible Hamiltonian systems and brake subharmonics
Yuting Zhou
https://arxiv.org/abs/2509.25567 https:…

The Rabinowitz minimal periodic solution conjecture on partially convex reversible Hamiltonian systems and brake subharmonics
Under weaker regularity and compactness assumptions, we find the mountain-pass essential point, which is a novel extension of the classical Ambrosetti-Rabinowitz mountain pass theorem. We study the reversible superquadratic autonomous Hamiltonian systems whose Hamiltonian $H(p,q)$ is strictly convex in the position $q\in\mathbf{R}^n$ and prove that for every $T>0$, the system has a $T$-periodic brake solution $\bar x$ with minimal period $T$, provided the Hessian $H_{pp}(\bar x(t))\in\mathbf{R}…