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@arXiv_mathph_bot@mastoxiv.page
2025-06-16 09:14:39

A remarkable dynamical symmetry of the Landau problem
Tekin Dereli, Philippe Nounahon, Todor Popov
arxiv.org/abs/2506.11642

@mia@hcommons.social
2025-06-11 20:24:27

Very excited about this! Code to access GRIN will help lots of Google Books partners, and the example might open other doors, as well as the obvious benefits of access to data!
'Institutional Books 1.0: A 242B token dataset from Harvard Library's collections, refined for accuracy and usability' arxiv.org/abs/2506…

@lightweight@mastodon.nzoss.nz
2025-06-13 22:09:34

Kinda cool to see the programme for the UN's open source week... un.org/digital-emerging-techno but, of course, it's already almost entirely co-opted by corporate interests. They shit on ev…

@mgorny@social.treehouse.systems
2025-06-09 16:48:12

"""
"[…] Wanting a man got me into awful troubles more than once. But wanting to get married, never! No, no. None of that for me."
"Why not?" Tenar demanded.
Taken aback, Moss said simply, "Why, what man'd marry a witch?" And then, with a sidelong chewing motion of her jaw, like a sheep shifting its cud, “And what witch’d marry a man?"
They split rushes.
"What's wrong with men?" Tenar inquired cautiously.
As cautiously, lowering her voice, Moss replied, "I don't know, my dearie. I’ve thought on it. Often I’ve thought on it. The best I can say it is like this. A man’s in his skin, see, like a nut in its shell." She held up her long, bent, wet fingers as if holding a walnut. “It’s hard and strong, that shell, and it’s all full of him. Full of grand man-meat, man-self. And that’s all. That’s all there is. It’s all him and nothing else, inside."
Tenar pondered awhile and finally asked, "But if he's a wizard—"
"Then it's all his power, inside. His power’s himself, see. That’s how it is with him. And that’s all. When his power goes, he’s gone. Empty." She cracked the unseen walnut and tossed the shells away. “Nothing."
"And a woman, then?"
"Oh, well, dearie, a woman's a different thing entirely. Who knows where a woman begins and ends? Listen, mistress, I have roots, I have roots deeper than this island. Deeper than the sea, older than the raising of the lands. I go back into the dark." Moss’s eyes shone with a weird brightness in their red rims and her voice sang like an instrument. “I go back into the dark! Before the moon I was. No one knows, no one knows, no one can say what I am, what a woman is, a woman of power, a woman’s power, deeper than the roots of trees, deeper than the roots of islands, older than the Making, older than the moon. Who dares ask questions of the dark? Who’ll ask the dark its name?"
"""
(Ursula K. Le Guin, Tehanu)

@mgorny@pol.social
2025-06-14 16:18:36

Relikt przeszłości — dworzec kolejowy w Dąbroszynie. Do dziś zachowały się godziny otwarcia kasy biletowej.
#Dąbroszyn #ruina #kolej

Ruina budynku, przylegającego do stacji kolejowej, widziany na ukos. Z zewnątrz ma szkielet drewniany, pomalowany na brązowo, podzielony w pionie na trzy części — dolną wypełnioną pełnymi płytami (za wyjątkiem wyłamanej płyty po lewej stronie), środkową podzieloną na pół, z otworami okiennymi (bez szyb), oraz górną w postaci kratki z listewek. Wewnątrz budynek przedziela kilka betonowych ścian, pokrytych bazgrołami. Dach pokrywa dachówka albo gont, z tyłu widać niski komin. Budynek powoli zaras…
Ten sam budynek od strony peronu. Właściwie nic nowego — z przodu drewniany szkielet, po lewej stronie gęste pnącza, w środku pokryte bazgrołami ściany. Pośrodku szerokie wejście, do którego prowadzi dodatkowa linia płyt chodnikowych. Po bokach oddzielone krawężnikami kawałki ziemi — najpewniej dawniej obsadzony kwiatami.
Front budynku dworca kolejowego. Pośrodku oszrupane, brązowe, podwójne drzwi. U góry drzwi mają kratownicę jak dla okien, ale wypełnioną drewnianymi płytami; klamkę usunięto. Po bokach dwa okna, zabite płytami OSB. Nad nimi ozdóbki i gzyms, koloru białego. Główna część ściany ma barwę jasnobrązową, przy ziemi zaś pasteloworóżową. Przy drzwiach odpadł tynk.
Zbliżenie na drzwi. W miejscu jednej z płyt umieszczono kartkę z wyklejonym komunikatem:

"""
Kasa biletowa Dąbroszyn czynna

od poniedziałku do soboty 6:00 – 17:10
niedziela 6:00 – 19:20
przerwa 7:05 – 10:20
"""
@dawid@social.craftknight.com
2025-06-14 22:22:02

Dzisiaj noc z takim widoczkiem - znowu spanie pod mostem :)

Teraz ostatnie minuty chillowania z "the long dark", a jutro "rano" zaraz jedziemy do muzeum II WŚ w Narviku oddonego już o jakieś 60km.

#norwegia #vanlife

@midtsveen@social.linux.pizza
2025-06-06 18:49:12

Test @…!
#RudolfRocker

The image is a sepia-toned portrait of an older man. He is wearing a dark suit with a white shirt and a dark tie. The man has a full, white beard and mustache, and his hair is curly and graying. He is wearing round, wire-rimmed glasses. The background is a plain, dark color, which contrasts with the subject's lighter hair and beard. The man is looking directly at the camera with a serious expression. The photograph has a vintage quality, suggesting it was taken in the early 20th century.
@arXiv_hepth_bot@mastoxiv.page
2025-06-13 09:30:10

Differential Space of Feynman Integrals: Annihilators and $\mathcal{D}$-module
Vsevolod Chestnov, Wojciech Flieger, Pierpaolo Mastrolia, Saiei-Jaeyeong Matsubara-Heo, Nobuki Takayama, William J. Torres Bobadilla
arxiv.org/abs/2506.10456

@arXiv_csSD_bot@mastoxiv.page
2025-06-13 07:59:10

Discrete Audio Tokens: More Than a Survey!
Pooneh Mousavi, Gallil Maimon, Adel Moumen, Darius Petermann, Jiatong Shi, Haibin Wu, Haici Yang, Anastasia Kuznetsova, Artem Ploujnikov, Ricard Marxer, Bhuvana Ramabhadran, Benjamin Elizalde, Loren Lugosch, Jinyu Li, Cem Subakan, Phil Woodland, Minje Kim, Hung-yi Lee, Shinji Watanabe, Yossi Adi, Mirco Ravanelli

@arXiv_astrophHE_bot@mastoxiv.page
2025-06-10 09:59:03

Measurement of Downward-going Milli-charged particles beyond GZK cutoff at the Pierre Auger Observatory
Ye Xu
arxiv.org/abs/2506.07395