Tootfinder

CHESS Compact Wiggler construction report
Alexander Temnykh, Ivan Temnykh
https://arxiv.org/abs/2505.24585 https://arxiv.org/pdf/2505…

CHESS Compact Wiggler construction report
We developed, built, characterized on bench and beam-tested a permanent magnet (PM) Compact Wiggler (CW) prototype with a hydraulic assist gap-controlling mechanism. The prototype is of ~50cm long, 20cm wide and 40cm high and weights ~50kg. Magnetic structure has a 76.2mm period. At 6.5mm minimal gap the structure demonstrated ~2.3 Tesla peak field. At this gap, the magnet arrays attract each other with 7,990 N (1,796 lbf) force. Hydraulic system is employed to balance the attractive forces. He…

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Luke Titus:
🎵 Above Us
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https://luketitus.bandcamp.com/track/above-us-2
https://open.spotify.com/track/3w1LfDvwCLiraCHDZSCak9

Adsorbate phase transitions on nanoclusters from nested sampling
Thanawitch Chatbipho, Ray Yang, Robert B. Wexler, Livia B. P\'artay
https://arxiv.org/abs/2506.01295

Adsorbate phase transitions on nanoclusters from nested sampling
Nested sampling was employed to investigate adsorption equilibria on the truncated-octahedral Lennard-Jones nanocluster LJ$_{38}$ while systematically varying adsorbate-surface well depth and Lennard-Jones size parameters. Evaluation of the canonical partition function over a wide temperature range identifies two successive phase transitions: (i) condensation of the gas phase onto the cluster surface at higher temperatures, and (ii) lateral rearrangement of the adsorbed layer at lower temperatu…

so lost mal wieder

Ganz schöner Wackler… #Netzfrequenz

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Randi Weingarten, the longtime leader of one of the nation’s most influential labor unions and a major voice in Democratic politics,
has resigned from the Democratic National Committee.
She pointed to disagreements with the party’s new chairman, Ken Martin.
Ms. Weingarten, the president of the American Federation of Teachers, had supported Mr. Martin’s rival in the chairmanship race early this year,
Ben Wikler, the chairman of the Wisconsin Democratic Party.
Mr. …

Randi Weingarten Quits D.N.C. Post in Dispute With Chairman
In a letter to the party’s chairman, Ken Martin, Ms. Weingarten wrote, “I appear to be out of step with the leadership you are forging.”

Cazenave-Dickstein-Weissler-type extension of Fujita's problem on Heisenberg groups
Mokhtar Kirane, Ahmad Z. Fino, Berikbol T. Torebek, Zineb Sabbagh
https://arxiv.org/abs/2506.10611

Cazenave-Dickstein-Weissler-type extension of Fujita's problem on Heisenberg groups
This paper examines the critical exponents for the existence of global solutions to the equation \begin{equation*} \begin{array}{ll} \displaystyle u_t-Δ_{\mathbb{H}}u=\int_0^t(t-s)^{-γ}|u(s)|^{p-1}u(s)\,ds,&\qquad 0\leqγ<1,\,\,\, {η\in \mathbb{H}^n,\,\,\,t>0,} \end{array}\end{equation*} on the Heisenberg groups $\mathbb{H}^n.$ There exists a critical exponent $$p_c= \max\Big\{\frac{1}γ,p_γ\Big\}\in(0,+\infty],\quad\hbox{with}\quad p_γ=1+\frac{2(2-γ)}{Q-2+2γ},\,\,Q=2n+2$$ such…

Symmetry and symmetry breaking in interpolation inequalities for two-dimensional spinors -- Preliminary results
Jean Dolbeault, Rupert L. Frank, Jonte Weixler
https://arxiv.org/abs/2506.08318

Symmetry and symmetry breaking in interpolation inequalities for two-dimensional spinors -- Preliminary results
On the two-dimensional Euclidean space, we study a spinorial analogue of the Caffarelli-Kohn-Nirenberg inequality involving weighted gradient norms. This (SCKN) inequality is equivalent to a spinorial Gagliardo-Nirenberg type interpolation inequality on a cylinder as well as to an interpolation inequality involving Aharonov-Bohm magnetic fields, which was analyzed in a paper of 2020. We examine the symmetry properties of optimal functions by linearizing the associated functional around radial m…