Tootfinder

"Unberechenbar und willkürlich": Warum Apple sich immer mehr über die EU ärgert
Offiziell schwieg der iPhone-Hersteller auf der Entwicklerkonferenz WWDC zum Thema EU-Regulierung. Doch intern soll es im Hauptquartier in Cupertino brodeln.

Character varieties, hexagonal 3-webs and Hess connection
Adjaratou Arame Diaw (UCAD), Karamoko Diarra (USTTB), Frank Loray (IRMAR), Tangue Ndawa Bertuel
https://arxiv.org/abs/2507.07542

Character varieties, hexagonal 3-webs and Hess connection
We investigate the existence of some affine structure on SL 2 (C)-character varieties on the four-punctured sphere through web and symplectic geometry. This work provides a new proof of non integrability (i.e. irreducibility) of Painlev{é} VI equations, previously proved by S. Cantat and the third author.

Extreme-Band-Gap Semiconductors with Shallow Dopants and Mobile Carriers
Sieun Chae, Nocona Sanders, Kelsey A. Mengle, Amanda Wang, Xiao Zhang, Jon Lafuente Bartolome, Kaifa Luo, Yen-Chun Huang, Feliciano Giustino, John T. Heron, Emmanouil Kioupakis
https://arxiv.org/abs/2506.07284

Extreme-Band-Gap Semiconductors with Shallow Dopants and Mobile Carriers
The conventional distinction between semiconductors and insulators is often based on the magnitude of the band gap, with materials exhibiting gaps wider than 3 eV typically classified as insulators. However, the emergence of ultra-wide-band-gap (UWBG) semiconductors such as AlGaN, diamond, BN, and Ga2O3 challenges this paradigm for materials classification and raises fundamental questions about the upper bound of band gaps compatible with semiconducting behavior. Here we develop a computational…

Ran a 10k on Sunday in Wisconsin (solo #trailrunning). Two more times at lunch during the office this week. The weather has been great, getting hotter, it will probably be a brutal one for heat this summer! #running

Looking forward to joining the panel for the book launch of @… book 'Selected papers by Bill Hillier' this evening, 7 May at 6pm BST at the Bartlett School of Architecture, London
Join the launch event online:

Welcome! You are invited to join a webinar: Book Launch – Space Syntax: Selected Papers by Bill Hillier. After registering, you will receive a confirmation email about joining the webinar.
Join us online for the launch of Space Syntax: Selected Papers by Bill Hillier, a landmark volume celebrating 50 years of space syntax research. This long-awaited collection reflects Bill Hillier’s transformational way of thinking about buildings and cities that influenced generations of scholars, researchers and practitioners within the built environment disciplines and way beyond – in fields ranging from archaeology and biology to physics and zoology. Edited by Laura Vaughan, John Pepon…

A Unified Ontology for Scalable Knowledge Graph-Driven Operational Data Analytics in High-Performance Computing Systems
Junaid Ahmed Khan, Andrea Bartolini
https://arxiv.org/abs/2507.06107

A Unified Ontology for Scalable Knowledge Graph-Driven Operational Data Analytics in High-Performance Computing Systems
Modern high-performance computing (HPC) systems generate massive volumes of heterogeneous telemetry data from millions of sensors monitoring compute, memory, power, cooling, and storage subsystems. As HPC infrastructures scale to support increasingly complex workloads-including generative AI-the need for efficient, reliable, and interoperable telemetry analysis becomes critical. Operational Data Analytics (ODA) has emerged to address these demands; however, the reliance on schema-less storage s…

Evolutionary Map of the Universe: Detection and Analysis of the Shell Surrounding the Runaway Wolf-Rayet Star WR16
A. C. Bradley, M. D. Filipovi\'c, Z. J. Smeaton, H. Sano, Y. Fukui, C. Bordiu, S. Cichowolski, N. F. H. Tothill, R. Z. E. Alsaberi, F. Bufano, S. Dai, Y. A. Gordon, A. M. Hopkins, T. H. Jarrett, B. S. Koribalski, S. Lazarevi\'c, C. J. Riseley, G. Rowell, M. Sasaki, D. Uro\v{s}evi\'c, T. Vernstrom

Evolutionary Map of the Universe: Detection and Analysis of the Shell Surrounding the Runaway Wolf-Rayet Star WR16
We present the first radio--continuum detection of the circumstellar shell around the well-known WN8 type Wolf-Rayet star WR16 at 943.5\,MHz using the \ac{ASKAP} \ac{EMU} survey. At this frequency, the shell has a measured flux density of 72.2$\pm$7.2\,mJy. Using previous \ac{ATCA} measurements at 2.4, 4.8, and 8.64~GHz, as well as the \ac{EMU} observations of the star itself, we determine a spectral index of $α\,=\,+0.74\pm0.02$, indicating thermal emission. We propose that the shell and star…

Wenn ich von wenig bis sehr wenig Ahnung habe, erscheinen mir KI-generierte Antworten häufig korrekt – ich kann schlicht nicht beurteilen, ob sie es sind und oft noch nicht mal beurteilen, ob ich die Kompetenz habe, es zu beurteilen.
Habe ich von vielem viel Ahnung, dann kann ich in vage KI-generierte Antworten das Richtige hineinprojizieren und zudem aus den Antworten das filtern, was ich für richtig halte oder ich schließe aus den Fehlern, ihnen gar nicht zu trauen.

This https://arxiv.org/abs/2409.16330 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On certain $q$-multiple sums
We present outlines of a general method to reach certain kinds of $q$-multiple sum identities. Throughout our exposition, we shall give generalizations to the results given by Dilcher, Prodinger, Fu and Lascoux, Zeng, and Guo and Zhang concerning $q$-series identities related to divisor functions. Our exposition shall also provide a generalization of the duality relation for finite multiple harmonic $q$-series given by Bradley. Utilizing these generalizations, we will also arrive at some new in…

It's publication day for 'Space Syntax - Selected papers by Bill Hillier', edited by my wonderful Bartlett School of Architecture colleague Laura Vaughan with John Peponis and Ruth Conroy Dalton.
The book brings together Hillier's groundbreaking work spanning half a century with current commentaries by international researchers
It is available #openAccess by
…