Tootfinder

Semi-Riemannian $\text{spin}^c$ manifolds carrying generalized Killing spinors and the classification of Riemannian $\text{spin}^c$ manifolds admitting a type I imaginary generalized Killing spinor
Samuel Lockman
https://arxiv.org/abs/2509.08477

Semi-Riemannian $\text{spin}^c$ manifolds carrying generalized Killing spinors and the classification of Riemannian $\text{spin}^c$ manifolds admitting a type I imaginary generalized Killing spinor
We classify Riemannian $\text{spin}^c$ manifolds carrying a type I imaginary generalized Killing spinor, by explicitly constructing a parallel spinor on each leaf of the canonical foliation given by the Dirac current. We also provide a class of Riemannian $\text{spin}^c$ manifolds carrying a type II imaginary generalized Killing spinor, by considering spacelike hypersurfaces of Lorentzian $\text{spin}^c$ manifolds. We carry out much of the work in the setting of semi-Riemannian $\text{spin}^c$-…

Ce matin, Š l'occasion de la Journée nationale des vétérans autochtones, je suis passé Š la radio de Radio-Canada pour parler de la participation des Autochtones au sein des forces canadiennes lors de la Première et de la Seconde guerres mondiales.
https…

8 novembre : le Jour du Souvenir des combattants autochtones | OHdio | Radio-Canada
Écoutez l’extrait de l’émission Votre samedi : 8 novembre : le Jour du Souvenir des combattants autochtones

GÉANT witnessing a historic moment in Marseille 🇫🇷
This week, GÉANT joined AFR-IX telecom, ASREN, the European Investment Bank, French authorities & North African operators for the first landing of the Medusa Submarine Cable System on the French coast.
This milestone has been co-financed by the European Union through the Connecting Europe Facility (CEF) programme, under AFR-IX’s ATMED–DG and ATMED Nador–DG projects.
GÉANT is proud to contribute to this effort through t…

»Flüchtlinge spionierten im Weltkrieg für den Schweizer Nachrichtendienst:
Sie beschafften im Zweiten Weltkrieg – teils unter Lebensgefahr - Informationen für den Schweizer Nachrichtendienst: Flüchtlinge, die als Agenten eingesetzt wurden. Nach dem Krieg liess man sie fallen.«
Was soll ich oder ihr dazu noch zusätzlich kommentieren?
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Flüchtlinge spionierten im Weltkrieg für den Schweizer Nachrichtendienst
Sie beschafften im Zweiten Weltkrieg Informationen für den Schweizer Nachrichtendienst: Flüchtlinge, die als Agenten eingesetzt wurden.

Good Morning #Canada
Before #WWII, Canada could still be considered a tiny nation in terms of our influence on world affairs. But after the conflict broke out, we contributed well beyond expectations and our navy was an example. The Royal Canadian Navy (RCN) started the war with only 13 vessels, but when WWII ended, we had the 4th largest navy in the world. By 1945 the RCN had 450 ships in all, plus many smaller auxiliary units. This 1945 figure breaks down as follows: 2 cruisers, 17 destroyers, 68 frigates, 112 corvettes, 67 minesweepers, 12 escort ships, 75 Fairmile motor launches. During WWII, Canadian shipyards built a total of 4,047 naval vessels and 410 merchant ships for a grand total of 4,457 ships. The naval vessels included over 300 anti-submarine warships, as well as thousands of landing craft, escort ships, minesweepers, and tugs.
#CanadaIsAwesome #RemembranceDay
https://www.britannica.com/topic/Royal-Canadian-Navy/Second-World-War

Replaced article(s) found for cs.AI. https://arxiv.org/list/cs.AI/new
[7/17]:
- Mitigating Barren Plateaus in Quantum Neural Networks via an AI-Driven Submartingale-Based Framework
Jun Zhuang, Chaowen Guan

Assessment of Hybrid RANS-LES and WALE Formulations for Wake and Resistance Prediction of the BB2 Submarine
Noh Zainal Abidin (GeM), Frederic Grondin (GeM), Pol Muller (Naval Expert), Jean-Fran\c{c}ois Sigrist (Naval Expert)
https://arxiv.org/abs/2510.03383

Assessment of Hybrid RANS-LES and WALE Formulations for Wake and Resistance Prediction of the BB2 Submarine
Submarine hydrodynamics presents unique challenges in accurately predicting flow separation, wake structure, and resistance due to complex geometry and turbulent behaviour at high Reynolds (Re) numbers. Traditional Reynolds-Averaged Navier-Stokes (RANS) approaches are often limited in resolving unsteady flow structures and turbulence in the near and far regions. To address these limitations, hybrid RANS-LES models such as Detached Eddy Simulation (DES) and Large Eddy Simulation (LES) offer impr…

Replaced article(s) found for cs.CG. https://arxiv.org/list/cs.CG/new
[1/1]:
- Metric and Geometric Spanners that are Resilient to Degree-Bounded Edge Faults
Ahmad Biniaz, Jean-Lou De Carufel, Anil Maheshwari, Michiel Smid

Near-Optimal Dynamic Steiner Spanners for Constant-Curvature Spaces
S\'andor Kisfaludi-Bak, Geert van Wordragen
https://arxiv.org/abs/2509.01443 https://

Near-Optimal Dynamic Steiner Spanners for Constant-Curvature Spaces
We consider Steiner spanners in Euclidean and non-Euclidean geometries. In the Euclidean setting, a recent line of work initiated by Le and Solomon [FOCS'19] and further improved by Chang et al. [SoCG'24] obtained Steiner $(1+\varepsilon)$-spanners of size $O_d(\varepsilon^{(1-d)/2}\log(1/\varepsilon)n)$, nearly matching the lower bounds of Bhore and Tóth [SIDMA'22]. We obtain Steiner $(1+\varepsilon)$-spanners of size $O_d(\varepsilon^{(1-d)/2}\log(1/\varepsilon)n)$ not only in $d$-dimensio…