Tootfinder

When Family Comes First – Hanging Out with Mom, Dad, Sis, and all https://muz4now.com/web-stories/when-family-comes-first-hanging-out-with-mom-dad-and-sis/…

When Family Comes First - Hanging Out with Mom, Dad, Sis, and all
Stan Stewart - @muz4now

Wegen US-Zöllen: Sonos kündigt Preiserhöhungen an
Der kalifornische Soundspezialist Sonos hat angekündigt, noch in diesem Jahr die Preise einiger Produkte zu erhöhen. Grund sind die US-Zölle.
https://www.

Finite extinction time of a family of homogeneous Ricci flows
Roberto Araujo
https://arxiv.org/abs/2507.05097 https://arxiv.org/pdf/2…

Finite extinction time of a family of homogeneous Ricci flows
We show that for a broad family of noncompact homogeneous Riemannian manifolds, the corresponding homogeneous Ricci flow solutions have finite extinction time, thereby confirming the dynamical Alekseevskii conjecture for these spaces. As an application, we prove that on such homogeneous manifolds \( G/H \), the space of all \( G \)-invariant positive scalar curvature metrics is contractible.

Rund 3000 #Hitzetote im Sommer 2024 zeigen, wie gefährlich extreme #Temperaturen sein können.
Beim #Hitzeaktionstag in

3000 Hitzetote in Deutschland in nur einem Sommer: Hamm mit Hinweisen und Schutz
3000 Hitzetote in Deutschland in nur einem Sommer – diese Zahl erschreckte beim Hitzeaktionstag in Hamm. Es geht um Gefahren und Schutzmaßnahmen.

Active Scalar Mixing by Homogeneous Isotropic Turbulence
Joaquim P. Jossy, Pratyush S. Awasthi, Prateek Gupta
https://arxiv.org/abs/2507.04029 https://

Active Scalar Mixing by Homogeneous Isotropic Turbulence
We study the mixing of active scalars by homogeneous isotropic incompressible stochastic velocity fields. We consider both Navier-Stokes generated turbulent fields as well as artificially generated homogeneous isotropic stochastic fields. We use Fourier pseudospectral direct numerical simulations to study the mixing dynamics of two non-reacting species of different density ratios. We use the Atwood number to create a denser mixture and a lighter mixture. We show that in the absence of stirring,…

Hingehenge

Virtual Reality in den 90ern: Wie in Spielhallen der erste VR-Hype entstand
Vor Oculus & Co. kam Virtuality: Wie ein britisches Start-up Virtual Reality populär machte und an Technik, Heimkonsolen und Zeitgeist scheiterte.

Classification of Equivariant Legendrian Embeddings of Rational Homogeneous Spaces into Nilpotent Orbits
Minseong Kwon
https://arxiv.org/abs/2507.03932 htt…

Classification of Equivariant Legendrian Embeddings of Rational Homogeneous Spaces into Nilpotent Orbits
For a complex semi-simple Lie algebra, every nilpotent orbit in its projectivization comes with a complex contact structure. For each nilpotent orbit, we classify projective Legendrian subvarieties that are homogeneous under the actions of their stabilizers in the adjoint group. In particular, we present a classification of equivariant Legendrian embeddings of rational homogeneous spaces into adjoint varieties.

🇺🇦 Auf radioeins läuft...
Home Counties:
🎵 Posthumous Spreadsheets
#NowPlaying #HomeCounties
https://open.spotify.com/track/5j8rRZF4B2n6ctuAvVK1Ro

Zariski-dense deformations of standard discontinuous groups for pseudo-Riemannian homogeneous spaces
Kazuki Kannaka, Toshiyuki Kobayashi
https://arxiv.org/abs/2507.03476

Zariski-dense deformations of standard discontinuous groups for pseudo-Riemannian homogeneous spaces
Let $X=G/H$ be a homogeneous space of a Lie group $G$. When the isotropy subgroup $H$ is non-compact, a discrete subgroup $Γ$ may fail to act properly discontinuously on $X$. In this article, we address the following question: in the setting where $G$ and $H$ are reductive Lie groups and $Γ\backslash X$ is a standard quotient, to what extent can one deform the discrete subgroup $Γ$ while preserving the proper discontinuity of the action on $X$? We provide several classification results, in…