Tootfinder

UK, Ukraine sign LYRA defense cooperation agreement: https://benborges.xyz/2025/10/11/uk-ukraine-sign-lyra-defense.html

Scalar-tensor theories in the Lyra geometry: Invariance under local transformations of length units and the Jordan-Einstein frame conundrum
E. C. Valad\~ao, Felipe Sobrero, Santiago Esteban Perez Bergliaffa
https://arxiv.org/abs/2510.08433

Scalar-tensor theories in the Lyra geometry: Invariance under local transformations of length units and the Jordan-Einstein frame conundrum
The Lyra geometry provides an interesting approach to develop purely geometrical scalar-tensor theories due to the natural presence of the Lyra scale function. This paper explores further the scale function source term to construct a theory on Lyra manifolds which contains proper generalizations of both Brans-Dicke gravity and the Einstein-Gauss-Bonnet scalar-tensor theory. It is shown that the symmetry group of gravitational theories on the Lyra geometry comprises not only coordinate transform…

Self-interacting dark matter in the center of a Local Group dwarf galaxy and its satellites
Thales A. Gutcke, Giulia Despali, Stephanie O'Neil, Mark Vogelsberger, Azadeh Fattahi, David B. Sanders
https://arxiv.org/abs/2510.05258

Self-interacting dark matter in the center of a Local Group dwarf galaxy and its satellites
We present a detailed comparison of a Local Group dwarf galaxy analogue evolved in two cosmological models: the standard $Λ$CDM and a self-interacting dark matter (SIDM) model with a velocity-dependent cross-section. Both simulations are run with the high-resolution, hydrodynamical LYRA galaxy formation model, allowing us to explore the global and substructure properties of the dwarf in a consistent context. While the overall halo growth, final mass, and subhalo mass functions remain largely u…

Lyra: Generative 3D Scene Reconstruction via Video Diffusion Model Self-Distillation
Sherwin Bahmani, Tianchang Shen, Jiawei Ren, Jiahui Huang, Yifeng Jiang, Haithem Turki, Andrea Tagliasacchi, David B. Lindell, Zan Gojcic, Sanja Fidler, Huan Ling, Jun Gao, Xuanchi Ren
https://arxiv.org/abs/2509.19296

The Streaming Instability in 3D: Conditions for Strong Clumping
Jeonghoon Lim, Jacob B. Simon, Rixin Li, Olivia Brouillette, David G. Rea, Wladimir Lyra
https://arxiv.org/abs/2509.18270

Thermodynamic constraints and pseudotransition behavior in a one-dimensional water-like system
F. F. Braz, S. M. de Souza, M. L. Lyra, Onofre Rojas
https://arxiv.org/abs/2509.14362

Thermodynamic constraints and pseudotransition behavior in a one-dimensional water-like system
We investigate a one-dimensional water-like lattice model with Van der Waals and hydrogen-bond interactions, allowing for particle number fluctuations through a chemical potential. The model, defined on a chain with periodic boundary conditions, exhibits three ground-state phases: gas, bonded liquid, and dense liquid, separated by sharp phase boundaries in the chemical potential and temperature plane. Using the transfer matrix method, we derive exact analytical results within the grand-canonica…

The Entangled Feedback Impacts of Supernovae in Coarse- versus High-Resolution Galaxy Simulations
Eric Zhang, Laura V. Sales, Thales A. Gutcke, Yunwei Deng, Hui Li, R\"udiger Pakmor, Federico Marinacci, Volker Springel, Mark Vogelsberger, Paul Torrey, Boyuan Liu, Rahul Kannan, Aaron Smith, Greg L. Bryan
https://arxiv.org/abs/2510.0243…

The Entangled Feedback Impacts of Supernovae in Coarse- versus High-Resolution Galaxy Simulations
It is often understood that supernova (SN) feedback in galaxies is responsible for regulating star formation and generating gaseous outflows. However, a detailed look at their effect on the local interstellar medium (ISM) on small mass scales in simulations shows that these processes proceed in clearly distinct channels. We demonstrate this finding in two independent simulations with solar-mass resolution, LYRA and RIGEL, of an isolated dwarf galaxy. Focusing on the immediate environment surrou…

Existence and Calculation of Optimal Equilibria on Overlapping Generations Economies
Leandro Lyra Braga Dognini
https://arxiv.org/abs/2509.19019 https://ar…

Stochastic Non-T\^atonnement Processes and the Attraction Principle
Leandro Lyra Braga Dognini
https://arxiv.org/abs/2509.17248 https://arxiv.org/pdf/2509.…

Stochastic Non-Tâtonnement Processes and the Attraction Principle
I characterize stochastic non-tâtonnement processes (SNTP) and argue that they are a natural outcome of General Equilibrium Theory. To do so, I revisit the classical demand theory to define a normalized Walrasian demand and a diffeomorphism that flattens indifference curves. These diffeomorphisms are applied on the three canonical manifolds in the consumption domain (i.e., the indifference and the offer hypersurfaces and the trade hyperplane) to analyze their images in the normalized and the f…

🇺🇦 #NowPlaying on BBCRadio3's #EssentialClassics
Osian Ellis, William Alwyn, London Philharmonic Orchestra & William Alwyn:
🎵 Harp Concerto 'Lyra Angelica' (4th mvt)
#OsianEllis #WilliamAlwyn #LondonPhilharmonicOrchestra